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Journal of Solid State Electrochemistry
Journal Prestige (SJR): 0.661  Citation Impact (citeScore): 2 Number of Followers: 7  Hybrid journal (It can contain Open Access articles)ISSN (Print) 1433-0768 - ISSN (Online) 1432-8488 Published by Springer-Verlag  [2468 journals]
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- Electrochemistry in China R & D - status and forecast
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PubDate: 2023-06-01
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- Self-healable Nafion-poly(vinyl alcohol)/phosphotungstic acid proton
exchange membrane prepared by freezing–thawing method for direct
methanol fuel cell-
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Abstract: Getting the direct methanol fuel cell (DMFC) closer to mass production requires the creation of a high-performance and long-lasting proton exchange membrane (PEM). In this study, self-healable PEMs, Nafion-poly(vinyl alcohol)/phosphotungstic acid (N-PVA/HPW), were prepared through a simple freezing–thawing method. HPW acted as proton conductors, while PVA with reversible hydrogen bonds contributed to the self-repair ability of the membrane. The proton conductivity of the N-PVA/HPW membranes was found to be comparable to that of the pristine Nafion membrane owing to the additional proton-conducting sites and improved water retention provided by the HPW. Along with this, the packed structure of the mixed-matrix membranes led to a lower methanol permeability in all the N-PVA/HPW membranes compared to recast Nafion. As a result, N-PVA/HPW20 membrane with acceptable proton conductivity (0.062 S cm−1) and reduced methanol permeability (2.75 × 10−6 cm2 s−1) achieved the highest selectivity, where selectivity is a well-known indicator of a membrane’s suitability for use in DMFC. The N-PVA/HPW20 membrane successfully recorded a peak power density of 2.7 mW cm−2, which is 10.7% higher than the value of recast Nafion. Another highlight of these mixed-matrix membranes is their ability to recover up to 93% of their initial methanol barrier properties after being damaged. This fascinating self-healing property of the membrane is believed to have the potential to extend the service life of DMFC. Graphical
PubDate: 2023-06-01
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- Modified metallic current collectors for sodium metal anodes
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Abstract: Abundant and inexpensive sodium metal anode with low redox potential and high theoretical capacity shows great potential in next-generation high-energy–density energy storage batteries. However, the uncontrollable growth of sodium dendrites during cycling decays cell cycle life, limiting the practical application and large-scale production of sodium metal batteries. To resolve this problem, researchers have proposed many strategies to inhibit the growth of sodium dendrites. Among those strategies, metal current collectors structuring stands out for its unique role in mitigating volume fluctuations caused by sodium metal plating/stripping, reducing energy barrier for sodium nucleation, and providing a large number of nucleation sites. Therefore, this review presents the basic requirements for metallic current collectors of sodium metal anodes and summarizes research progress of three common categories of metallic current collectors. Finally, the challenges and future directions of further modifying metallic current collectors are proposed.
PubDate: 2023-06-01
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- Nitrogen-sulfur co-doped FeS/C nanofibers for high-performance
lithium/potassium storage-
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Abstract: The nitrogen-sulfur co-doped FeS/C nanofibers (N, S-FeS/C) have been prepared by electrospinning followed by carbonization and sulfuration at high temperature. At the same time, the effect of sulfuration temperature on the lithium and potassium storage properties of N, S-FeS/C are investigated. The N, S co-doped carbon layer can suppress the agglomeration and volume expansion of FeS particles during the charge–discharge process, coupled with good electronic conductivity of carbon matrix and good crystallinity of FeS particles at optimized sulfuration temperature. And the N, S-FeS/C obtained by sulfuration at 600 °C exhibits outstanding electrochemical performance in lithium-ion batteries (LIBs) and potassium-ion batteries (PIBs), which shows high reversible capacities of 653 mAh g−1 at 1000 mA g−1 after 250 cycles in LIBs and 270 mAh g−1 after 190 cycles at 20 mA g−1 in PIBs. The N, S-FeS/C are promising anode materials for both LIBs and PIBs that could be demonstrated.
PubDate: 2023-06-01
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- Self-shutdown function and uniform Li-ion flux enabled by a double-layered
polymer electrolyte for high-performance Li metal batteries-
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Abstract: Polymer electrolytes with high safety and high performance are considered to be one of the most promising candidates to upgrade the traditional organic-solvent-based lithium-ion batteries. However, unlimited thermal runaway and incompatibility between electrolyte and electrode greatly limit the development of advanced polymer electrolytes. In this work, we fabricated bilayer polymer electrolytes (DLMs) with a multilevel heterostructure to achieve high-temperature self-shutdown functionality and uniform Li-ion flux. The double-layer heterostructure consists of a self-shutdown layer in contact with the cathode and an ionic liquid composite polymer layer in contact with the anode, which can achieve effective electrode–electrolyte interface contact, fast self-shutdown, and more than 900 h of stable lithium plating/stripping. In addition, the NCM523/DLM/Li battery exhibits a high reversible capacity of 129.7 mAh g−1 at 0.5 C and maintains high-capacity retention (> 89%) after 200 charge–discharge cycles. This study shows a great advantage in handling thermal abuse and a stable lithium anode, suggesting a promising approach to the high-safety lithium metal batteries.
PubDate: 2023-06-01
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- Electrodeposition of nanoporous Ni0.85Se arrays anchored on rGO promotes
high-efficiency oxygen evolution reaction-
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Abstract: Highly efficient and low-cost electrocatalyst is much desirable for oxygen evolution reaction (OER) to enhance the water splitting efficiency. In this work, a self-supported nanoporous Ni0.85Se/rGO was electrodeposited on NF and used as OER catalyst. The synthesized Ni0.85Se/rGO exhibits a low overpotential of 280 mV to afford 100 mA cm−2, a small Tafel slope of 40.2 mV dec−1, and a high stability with nearly negligible potential fluctuation at a large current density of 100 mA cm−2 during 24-h long-term test, which is at the top level among recently reported OER electrocatalyst. The mechanism reason for the outstanding stability of Ni0.85Se/rGO was revealed. It is mainly attributed to its well-maintained nanoporous structure, larger ECSA, high electrical conductivity, and most importantly its superaerophobic surface.
PubDate: 2023-06-01
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- Enhanced electrochemical performance of LiNi0.83Co0.12Mn0.05O2 cathodes
with a fast-ion conductor Li0.33La0.56TiO3 coating layer-
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Abstract: Ni-rich layered cathode materials LiNixCoyMn(1-x–y)O2 (x ≥ 0.8) suffer from capacity decay due to structural deterioration during electrochemical cycling. To overcome these problems, the fast-ion conductor Li0.33La0.56TiO3 (LLTO) is coated on the surface of LiNi0.83Co0.12Mn0.05O2 (NCM83) cathodes through the sol–gel method, which can stabilize the electrode/electrolyte interface of cathode materials and facilitate Li+ transport and charge transfer. As a result, the LLTO-coated NCM83 exhibits better cycle stability and higher rate performance. The NCM83 modified by 5 wt% LLTO has the discharge capacity of 185.9 mAh g−1 at 1C rate after 100 cycles and with higher capacity retention of 92.9% than the pristine NCM83 of 86.2%, and as well as the 5 wt% LLTO-coated NCM83 has a higher Li+-insert diffusion coefficient of 1.143 × 10−11 cm2 s−1 than the pristine NCM83 of 8.757 × 10−12 cm2 s−1. Therefore, the fast-ion conductor LLTO coating strategy shows great potential in improving the performance of Ni-rich layered cathode materials.
PubDate: 2023-06-01
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- Facile construction of the stable layer on the surface of Si/C electrode
assisted by SWCNT coating-
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Abstract: Silicon as one of the most promising anode materials suffers from its low electronic conductivity and large volume changes during the lithiation/delithiation processes, resulting in a huge capacity fading upon cycling. Herein, we design a single-wall carbon nanotube (SWCNT) coating on the silicon/carbon (Si/C) electrode to improve its cycling performance. By this simple configuration, the commercial Si/C electrode delivers a high reversible capacity of 653.8 mA h g−1 at current density of 65 mA g−1 and exhibits excellent cycling stability with capacity retention 79.8% after 150 cycles. As expected, the SWCNT layer on the surface of electrode improves the electronic conductivity of the electrode and serves as a barrier layer to prevent the electrode surface from cracking and delaminating, which gives the best reversible capacity and longer life cycle. This design can eliminate much more complicated processes for providing some potential in commercial applications.
PubDate: 2023-06-01
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- In situ synthesis of Bi3+-doped δ-MnO2 cathode to enhance the cycle
stability for aqueous zinc-ion batteries-
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Abstract: Bi3+-doped δ-MnO2 materials (BMX, X = 5, 10, 15) with long cycle life were obtained by an in situ electrochemical reaction using δ-MnO2 and Bi2O3 mixture as raw materials. According to the material characterization and electrochemical performance test, it indicates that the bismuth is evenly incorporated into δ-MnO2. Among these obtained materials, BM10 exhibits the best performance. The specific capacity of the BM10 cathode is maintained at 108 mAh g−1 after 5000 cycles at a current density of 3 A g−1 and remains at 70 mAh g−1 after 9000 cycles without attenuation at a high current density of 10 A g−1. The Bi3+ modification mechanism is also revealed by the electrochemical kinetic and chemical analyses, which can effectively stabilize the layered structure of δ-MnO2, increase the diffusion rate of Zn2+ and H+, and inhibit the dissolution of Mn2+ formed by the disproportionation reaction of Mn3+. The preparation process of manganese-based materials with excellent performance is easy to handle and has large-scale production and application prospects.
PubDate: 2023-06-01
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- Tailoring the electroactive area of carbon screen-printed electrodes by
simple activation steps towards rutin determination-
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Abstract: Screen-printed electrodes (SPEs) have the advantage of being considered electrochemical cells that can be implemented in portable sensor applications. With the aim to improve the SPE performance, herein, we present different electrochemical surface modifications of carbon-based SPEs by cyclic voltammetry in hydrogen peroxide or sodium peroxide solution. SPEs were characterized using contact angle, Raman spectroscopy, laser-induced breakdown spectroscopy (LIBS), and electrochemical methods, including cyclic voltammetry (CV), electrochemical impedance spectroscopy, and square wave voltammetry (SVW). Main results agree with the observed changes by Raman spectroscopy and the sp2/sp3 ratio (ID/IG) of carbon vibrational bands. The diminishing of C2 Swan signal determined by LIBS suggests that the activation steps produced defects onto the working electrode in the SPE. Considering that the different intermolecular forces of the redox couples are useful to indirectly evaluate the different functional groups, the activated SPEs were studied in the presence of rutin and [Fe(CN)6]3−/[Fe(CN)6]4− redox couples. Main results show that the electrochemical response of the activated electrode surfaces can be properly used to improve the rutin electrochemical determination. Graphical
PubDate: 2023-06-01
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- Advanced separator engineering strategies for reversible electrochemical
zinc storage-
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Abstract: Zinc ion batteries are favored by researchers because of their intrinsic safety, low cost, and high theoretical energy density. The serious dendrite growth of Zn anode during electrochemical deposition inhibits the development of zinc ion batteries currently. Many research works have been carried out to modify the zinc metal anode surface and aqueous electrolyte. Significantly, as the carrier of electrolyte and the bridge of ions, the separators show promising potential of inhibiting dendrites growth by regulating the ions migration and the electric field of the electrolyte-anode interface. However, a technical review about the separators of zinc ion batteries is still rare. In this review, the basic requirements of separators and the latest development of modification materials and mechanisms are summarized. Finally, the perspectives for further developments on the separators of zinc ion batteries are outlined. This review could offer useful information for the further development of separators for zinc ion batteries.
PubDate: 2023-06-01
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- Cellulose acetate-promoted polymer-in-salt electrolytes for solid-state
lithium batteries-
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Abstract: Despite their non-flammability, low processing cost and wide electrochemical stability window, solid-state polymer electrolytes still exhibit certain challenges, such as high operating temperature and low room-temperature ionic conductivity. Cellulose acetate (CA) is a common natural polymer derivative, which is promising as a filler in polymer electrolytes due to its rich surface functional groups, superior mechanical properties and high porosity. Herein, CA is incorporated into a unique polymer-in-salt electrolyte based on lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) to design a composite polymer electrolyte (PLCA). The influence of CA content on the overall performance of PLCA is investigated. With 10 wt% of CA, PLCA exhibits high room-temperature ionic conductivity of 4.33 × 10−4 S cm−1, high Li-ion transference number of 0.60 and a wide electrochemical stability window (4.8 V). The resulting LiFePO4 Li solid-state lithium battery delivers a specific discharge capacity of 160.17 mAh g−1 at 0.2 C, with stable cycling ability and good rate capability. CA is found to promote the dissociation of lithium salt, reduce the crystallinity of polymer and further create a new Li-ion transport pathway in PLCA, responsible for the battery performance improvement. Our work provides an opportunity to design high-performance composite polymer-in-salt electrolytes for advanced solid-state batteries.
PubDate: 2023-06-01
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- The challenges and perspectives of developing solid-state electrolytes for
rechargeable multivalent battery-
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Abstract: From the perspective of future development trend, energy issues will always accompany with the human development process. The development of new batteries that are friendly to the environment has become a global trend. Safe solid-state electrolytes with high ionic conductivity, excellent electrochemical property, high mechanical/thermal stabilfity, and good electrolyte/electrode compatibility are believed the key components to the next-generation rechargeable batteries. Therefore, from the perspective of balancing both high energy density and intrinsic safety, all-solid-state ion batteries should be further developed, while a stable, nonflammable solid-state electrolyte should be designed and optimized to match it. This paper gives a comprehensive review on the recent progress in the solid-state electrolytes for multivalent-ion batteries, mainly for magnesium-ion, calcium-ion, zinc-ion, and aluminum-ion batteries. The key aspects of solid-state electrolytes are highlighted, including the synthesis process, physicochemical properties, and electrochemical performance. All-solid-state battery now is becoming the rising star since solid-state electrolyte solves most of the problems faced by the current lithium-ion batteries, allowing the best balance between battery life, safety, and cost.
PubDate: 2023-06-01
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- Construction of ion-conductive dual-channels by P(EA-co-AALi)-based gel
electrolytes for high-performance lithium metal batteries-
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Abstract: As people possess more safety conscious, the issue of electrolytes is attracting concern. The gel polymer electrolyte offers high ionic conductivity, wettability, and good interfacial contact, effectively reducing electrolyte leakage and improving battery safety. This study presents a novel gel polymer electrolyte that has been investigated for its excellent physical and electrochemical properties. The electrospinning film possesses a thin and flat surface with a thickness of only 40 ± 5 μm and particle size of around 300–400 nm. This creates an ion-conductive dual-channels that optimize the migration of lithium ions and ensure good contact and interfacial stability. In addition, the electrochemical stability window ranges from 0 ~ 6.1 V (vs. Li+/Li), which can be applied to most high-voltage cathode materials on the market. The NCM811//Li cell constructed with gel polymer electrolyte exhibited a first discharge capacity of 202.9 mAh g−1 at 0.5C and still maintain a discharge capacity of 117.5 mAh g−1 after 300 cycles, as well as a capacity retention rate of 57.9%. This strategy provides a new idea for the next generation of high-performance lithium metal batteries.
PubDate: 2023-06-01
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- Electrodeposition of polypyrrole for high-performance zinc ion battery
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Abstract: Zinc-ion batteries are considered as promising energy storage devices for large-scale energy storage due to the simple operation, low cost, and high safety, while their performances are determined by the cathode materials’ properties. Polypyrrole (PPy) can be used as the cathode material of zinc-ion battery, however, its poor cyclic stability limits the practical application. Considering the fact that electrolytes containing zinc ions are used in zinc ion batteries, the PPy cathode material has been electrodeposited on carbon cloth (CC) by using ZnSO4 solution as electrolyte (PPy-ZS/CC). The results show that PPy/CC-ZS exhibits higher specific capacity and cyclic stability than the electrode prepared in NaH2PO4 solution because the participation of ZnSO4 in the deposition process makes PPy-ZS more suitable for the ZnSO4 electrolyte of batteries. The specific capacity of the PPy-ZS has been increased by 24 mAh g−1 compared with the capacity of PPy deposited in the NaH2PO4 system; after the 1000-cycle test, the capacity retention is 80%. Furthermore, PPy-ZS’s specific capacity can reach 167 mAh g−1 at 0.05A g−1 when the battery is assembled in 2.0 mol L−1 ZnSO4 + 70 mmol L−1 NH4I electrolyte. After 2000 repeated charge/discharge tests at 4.5 A g−1, Zn//PPy-I-ZS still maintains 75% of the initial capacity, showing quite good stability. It provides an effective method to improve the performance of PPy-based cathode material in Zn-ion battery.
PubDate: 2023-06-01
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- Stable sodium-ion battery anode enabled by encapsulating Sb nanoparticles
in spherical carbon shells-
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Abstract: Antimony (Sb) has been recognized as one of the most promising metal anode materials for sodium-ion batteries, owing to its high capacity and suitable sodiation potential. Nevertheless, the large volume variation during (de)alloying can lead to material fracture and amorphization, which seriously affects their cycling stability. In this work, we report an engineering strategy by encapsulating Sb nanoparticles in nitrogen-doped spherical carbon shells (Sb@CN). This unique structure can efficiently accommodate volume variation and release stress upon sodiation, thus maintaining structural integrity. As a result, the Sb@CN composite exhibits an excellent sodium storage performance, achieving a capacity of 282 mAh g−1 over 5000 cycles at the current density of 0.66 A g−1, and the capacity retention rate from the second cycle to the 5000th cycle is close to 100%. Moreover, it also shows a remarkable rate capability of 217 mAh g−1 at a high current density of 3.3 A g−1. It is believed that this composition strategy would provide guidance toward stable alloy anodes for sodium-ion batteries.
PubDate: 2023-06-01
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- Carbon cloth supported lithiophilic carbon nanotubes@Ag skeleton for
lithium anode via ultrafast Joule heating method-
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Abstract: Regulating lithium deposition and stripping behavior during cycles is critical for constructing high-performance and stable lithium metal anodes (LMAs). Herein, a three-dimensional (3D) flexible hierarchical carbon clothes/carbon nanotube (CC/CNTs) host decorated with uniform lithiophilic Ag nanoseeds is obtained via a facile ultrafast Joule heating (UJH) method. Benefiting from high conductivity and large space for Li storage, the as-prepared CC/CNTs@Ag-Li anode displays favorable cycling efficiency and long-life stability. Moreover, the planted Ag lithiophilic sites can efficiently alleviate the growth of lithium dendrites. The synergistic effect of 3D conductive CC/CNTs and Ag nanoseeds endows the skeleton to guide the uniform deposition of Li during the plating/stripping process. The full cells assembled with LiFePO4 (LFP) cathode and CC/CNTs@Ag-Li anode present a high discharge capacity of 155.9 mA h g−1 at 0.1 C and a good capacity retention of 91.4% after 80 cycles at 1 C. The novel design strategy sheds new light on the synthesis of novel alkali metal anodes for energy storage. Graphical abstract
PubDate: 2023-06-01
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- Economical cobalt-free single-crystal LiNi0.6Mn0.4O2 cathodes for
high-performance lithium-ion batteries-
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Abstract: With the scarcity of cobalt resources and soaring prices, the removal of cobalt from nickel-rich layered cathodes is now a priority to reduce the material costs and develop the sustainability of lithium-ion batteries (LIBs). In this work, we report a single-crystal cobalt-free LiNi0.6Mn0.4O2 (NM64) layered oxide cathode and compare it with single-crystal LiNi0.6Co0.1Mn0.3O2 (NCM613) cathode. On the one hand, NM64 exhibits competitive energy density to NCM613 and better long-term cycle stability under a high cutoff voltage of 4.5 V. Impressively, single-crystal NM64 not only could effectively suppress the microcrack formation, resulting in the excellent structural stability and long cycling lifespan even at the full delithiated state, but also, it has superior thermal stability to single-crystal NCM613, which is beneficial to achieve high operational safety of LIBs. On the other hand, due to the removal of expensive cobalt, the material cost of NM64 is only 2/3 of NCM613, which is conducive to significantly reducing the cost of LIBs. As a result, NM64 exhibits high energy density (765.27 Wh kg−1) and remarkable cycle stability (93.21 mA h g−1 after 200 cycles at a high charging voltage of 4.5 V). Considering the cost and electrochemical performance advantages, the NM64 cathode is highly expected to stand out in the next generation of cobalt-free LIBs.
PubDate: 2023-06-01
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- High-mass loading Bi2O2CO3 nanoflakes with crystalline structure
transition as cathode for alkaline zinc battery-
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Abstract: Rechargeable aqueous alkaline zinc batteries (AZBs) have received extensive attention due to their cost-effectiveness and environmental friendliness. However, the areal capacity of currently reported AZBs is still unsatisfactory especially at high mass loading, which hinders their further practical application. Herein, we propose a simple precipitate strategy to prepare low-cost Bi2O2CO3 nanoflakes for AZBs. The resultant Bi2O2CO3 undergoes a structural transformation during the charge/discharge cycle, which not only significantly changed the microstructure but also optimized the energy storage capability of the as-prepared material. At a high mass loading of 30 mg cm−2, the as-fabricated electrode could attain a high areal capacity of 5.14 mAh cm−2 at the current density of 15 mA cm−2, excellent rate capability (2.40 mAh cm−2 at 180 mA cm−2), and long cycling life of about 88.6% retention after 800 charge/discharge cycles. Ex situ XRD and SEM techniques show that the energy storage mechanism of the prepared material is predominantly contributed by the reversible conversion reaction between Bi and Bi2O3 in the KOH aqueous electrolyte. This work might shed light on the construction of advanced materials in alkaline energy-storage devices.
PubDate: 2023-06-01
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- Integrating battery and capacitive materials for efficient sodium and
chloride capture-
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Abstract: Capacitive deionization (CDI) has been considered as a novel technology to relieve freshwater shortages. However, due to the limited physical adsorption capacity, the salt removal capacity remains low. To enhance the desalination capacity, battery type, and capacitive materials are employed to fabricate a dual-ion electrochemical deionization (DEDI) device. Herein, a Prussian blue/carbon framework (PB/CF) and BiOCl/CF were prepared by in situ conversion with a MOF-derived carbon framework as the precursor. A PB/CF composite was used as the sodium electrode, and BiOCl/CF was used as the chloride electrode. This system achieved high desalination capacity, excellent cycling stability, and rapid desalination. The maximum desalination capacity was 163 mg g−1 at 100 mA g−1, and the desalination rate was 0.631 mg g−1 s−1 at a high current density of 1000 mA g−1. The outstanding desalination performance of this system arose from the synergistic effect of combining battery materials with a carbon framework for deionization and offers potential for future desalination designs.
PubDate: 2023-05-11
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