All-solid-state lithium batteries employing inorganic solid electrolytes have been regarded as an ultimate solution to safety issues because of their features of no leakage as well as incombustibility and they are expected to achieve higher energy densities owing to their simplified structure. Two-dimensional transition-metal dichalcogenides exhibit a great potential in energy storage devices because of their unique physical and chemical characteristics. In this work, 50 nm thick highly crystalline layered VS (hc-VS) nanosheets are prepared by a solvothermal method, and their electrochemical performances are evaluated in Li/75% LiS-24% PS-1% PO/LiGePS/hc-VS all-solid-state lithium batteries. At 50 mA g, hc-VS nanosheets show a high reversible capacity of 532.2 mAh g after 30 cycles. Moreover, stable discharge capacities are maintained at 436.8 and 270.4 mAh g at 100 and 500 mA g after 100 cycles, respectively. The superior rate capability and cycling stability are ascribed to the better electronic conductivity and well-developed layered structure. In addition, the electrochemical reaction kinetics and capacity contributions were analyzed via cyclic voltammetry measurements at different scan rates.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.7b18798 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Universal Design of Lithium Anode via Dynamic Stability Strategy for Practical All-solid-state Batteries.
Angew Chem Int Ed Engl
December 2024
University of Maryland at College Park, Department of Chemical & Biomolecular Engineering, 1223A Chemical and Nuclear Engineering, 20742, College Park, UNITED STATES OF AMERICA.
All-solid-state Li-metal battery (ASSLB) chemistry with thin solid-state electrolyte (SSE) membranes features high energy density and intrinsic safety but suffers from severe dendrite formation and poor interface contact during cycling, which hampers the practical application of rechargeable ASSLB. Here, we propose a universal design of thin Li-metal anode (LMA) via a dynamic stability strategy to address these issues. The ultra-thin LMA (20 μm) is in-situ constructed with uniform highly Li-ion conductive solid-electrolyte interphase and composite-polymer interphase (CPI) via electroplating process.
View Article and Find Full Text PDFIron as a Sulfidation-Resistant Current Collector for Negative Electrode in Sulfide-Based All-Solid-Batteries.
Small
December 2024
LiB Materials Research Group, Research Institute of Industrial Technology and Science (RIST), POSCO Global R and D Center, Sondohwahak-ro 100, Yeonsu-gu, Incheon, 21985, Republic of Korea.
The demand for all-solid-state batteries (ASSBs) featuring credible LiPSCl argyrodite (LPSCl) electrolytes is increasing, driving interest in exploring suitable current collectors for ASSBs. Copper (Cu), used as a current collector in traditional lithium-ion batteries, exhibits significant instability in LPSCl-ASSBs. In this study, the effectiveness of iron (Fe) is systematically investigated as an alternative current collector in LPSCl-ASSBs and compare its performance to that of Cu.
View Article and Find Full Text PDFCommercial Cellulosic Paper-Based Solid Electrolyte for High-Temperature Lithium-Sulfur Batteries.
ACS Appl Mater Interfaces
December 2024
Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
Solid-state lithium-sulfur (Li-S) batteries show promise for future electric mobility due to their high energy density potential. However, high internal impedance, Li polysulfide shuttling, and dendrite formation exist. Herein, we present a Li-rich cellulosic solid-state electrolyte (SSE) that, when paired with a sulfurized polyacrylonitrile (SPAN) cathode, leads to durable Li-S batteries for use in the room temperature to 50 °C range.
View Article and Find Full Text PDFBoosting Anionic Redox Reactions of Li-Rich Cathodes through Lattice Oxygen and Li-Ion Kinetics Modulation in Working All-Solid-State Batteries.
Adv Mater
December 2024
Tsinghua Center for Green Chemical Engineering Electrification, Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
The use of lithium-rich manganese-based oxides (LRMOs) as the cathode in all-solid-state batteries (ASSBs) holds great potential for realizing high energy density over 600 Wh kg. However, their implementation is significantly hindered by the sluggish kinetics and inferior reversibility of anionic redox reactions of oxygen in ASSBs. In this contribution, boron ions (B) doping and 3D LiBO (LBO) ionic networks construction are synchronously introduced into LRMO materials (LBO-LRMO) by mechanochemical and subsequent thermally driven diffusion method.
View Article and Find Full Text PDFDeciphering the Interfacial Li-Ion Migration Kinetics of Ni-Rich Cathodes in Sulfide-Based All-Solid-State Batteries.
ACS Appl Mater Interfaces
December 2024
State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
Nickel-rich layered oxide with high reversible capacity and high working potentials is a prevailing cathode for high-energy-density all-solid-state lithium batteries (ASSLBs). However, compared to the liquid battery system, ASSLBs suffer from poor Li-ion migration kinetics, severe side reactions, and undesired formation of space charge layers, which result in restricted capacity release and limited rate capability. In this work, we reveal that the capacity loss lies in the H2-H3 phase transition period, and we propose that the inconsistent interfacial Li-ion migration is the arch-criminal.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!