Optimization Effect on the Interfacial Impedance and Contact Stress of the ASSLB with Porous Polymer Buffer Layer DOI
Guofei Chen, Lei Guan, Yang Chen

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

The contact loss and interface impedance of all-solid-state lithium-ion batteries (ASSLBs) have greatly restricted their commercial applications. This study simulates the ASSLB composed a LiNi0.8Co0.1Mn0.1O2 (NMC811) cathode, silicon–carbon composite (SiC) anode, Li10GeP2S12 (LGPS) solid electrolyte analyzes interfacial electrochemical mechanical behavior. electrical resistance stress are obtained by fractal network model mechanics theory. According to reaction kinetics Nernst–Planck–Poisson equations, analytical electric field space charge layer (SCL) in case symmetric carrier movement is acquired. In addition, optimization effect coating porous poly(ethylene oxide) (PEO) on studied theoretically. Based equivalent circuit (ECM), spectra (EIS) whole cell simulated Comsol Multiphysics. To investigate evolution SCL capacitance, resistance, impedance, relevant physical parameters reasonably regulated. results show that when buffer higher initial porosity taken with thickness 1.5–2.5 × 10–7m, can be relieved actual improved. What's more, relative permittivity electrolytes range 10–50 reduce as well.

Language: Английский

Research Advances in Interface Engineering of Solid‐State Lithium Batteries DOI Creative Commons

Jianfang Yang,

Xianyong Zhang,

Minchen Hou

et al.

Carbon Neutralization, Journal Year: 2025, Volume and Issue: 4(1)

Published: Jan. 1, 2025

ABSTRACT Solid‐state lithium batteries have attracted increasing attention due to their high ionic conductivity, potential safety performance, and energy density. However, practical application is limited by a series of interface issues. In recent years, many efforts been dedicated solving these problems via engineering providing feasible strategies for the optimization lithiumion solid‐state battery interfaces. This paper reviews developments in addressing interfacial The existing are first systematically summarized, including poor contact, electrochemical instability, dendrites, space‐charge layers, element diffusion. Then, corresponding characteristics thoroughly analyzed from perspective cathode/electrolyte interface, anode/electrolyte structure design. Finally, future research directions modification discussed.

Language: Английский

Citations

4
Photoexcitation‐Enhanced High‐Ionic Conductivity in Polymer Electrolytes for Flexible, All‐Solid‐State Lithium‐Metal Batteries Operating at Room Temperature DOI
Ronghao Wang, Weiyi Wang, Yuzhen Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Abstract Designing solid polymer electrolytes (SPEs) with high ionic conductivity for room‐temperature operation is essential advancing flexible all‐solid‐state energy storage devices. Innovative strategies are urgently required to develop SPEs that safe, stable, and high‐performing. In this work, we introduce photoexcitation‐modulated heterojunctions as catalytically active fillers within SPEs, guided by photocatalytic design principles, meanwhile employ natural bacterial cellulose improve the compatibility poly(ethylene oxide), coordination environment of lithium salts, optimize both ion transport mechanical properties. situ photothermal experiments theoretical calculations reveal strong photogenerated electric field produced trace oxide) under photoexcitation significantly enhances salt dissociation, increasing concentration mobile Li + . This results in a substantial increase conductivity, reaching 0.135 mS cm −1 at 25 °C, transference number 0.46. The lithium‐metal pouch cells exhibit an impressive discharge capacity 178.8 mAh g even after repeated bending folding, demonstrate exceptional long‐term cycling stability, retaining 86.7 % their initial 250 cycles 1 C (25 °C). research offers novel approach developing high‐performance batteries.

Language: Английский

Citations

11
SnF2‐Catalyzed Lithiophilic–Lithiophobic Gradient Interface for High‐Rate PEO‐based All‐Solid‐State Batteries DOI
Kai Wu, Ao Li, Tan Jin

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(44)

Published: Aug. 2, 2024

Abstract Polyethylene oxide (PEO)‐based all‐solid‐state lithium metal batteries (ASSLMBs) are strongly hindered by the fast dendrite growth at Li metal/electrolyte interface, especially under large rates. The above issue stems from suboptimal interfacial chemistry and poor + transport kinetics during cycling. Herein, a SnF 2 ‐catalyzed lithiophilic‐lithiophobic gradient solid electrolyte interphase (SCG‐SEI) of x Sn y /LiF‐Li O is in situ formed. superior ionic LiF‐Li rich upper layer (17.1 nm) possesses high energy diffusion channels, wherein lithiophilic alloy (8.4 could highly reduce nucleation overpotential with lower barrier promote rapid electron transportation for reversible plating/stripping. Simultaneously, insoluble ‐coordinated PEO promotes ion bulk phase. As result, an over 46.7 3.5 times improvements lifespan critical current density symmetrical cells achieved, respectively. Furthermore, LiFePO 4 ‐based ASSLMBs deliver recorded cycling performance 5 C (over 1000 cycles capacity retention 80.0 %). More importantly, impressive electrochemical performances safety tests LiNi 0.8 Mn 0.1 Co pouch cell , even extreme conditions (i.e., 100 °C), also demonstrated, reconfirmed importance design high‐rate applications.

Language: Английский

Citations

9
Regulating Li+ transport behavior by cross-scale synergistic rectification strategy for dendrite-free and high area capacity polymeric all-solid-state lithium batteries DOI
Xinyang Li, Jie Feng, Yanan Li

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103759 - 103759

Published: Sept. 1, 2024

Language: Английский

Citations

7
A Highly Stable and Non‐Flammable Deep Eutectic Electrolyte for High‐Performance Lithium Metal Batteries DOI
Zhao Li, Ao Xu, Yu Cheng

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: July 26, 2024

Deep eutectic electrolytes (DEEs) are regarded as one of the next-generation to promote development lithium metal batteries (LMBs) due their unparalleled advantages compared both liquid and solid electrolytes. However, its application in LMBs is limited by electrode interface compatibility. Here, we introduce a novel dimethylmalononitrile (DMMN)-based DEE induced N coordination dissociate LiTFSI. We confirmed that DMMN molecule can dissociation LiTFSI interaction between atom Li

Language: Английский

Citations

6
Composite electrolyte with self‐inserted structure and all‐trans F conformation provides fast Li+ transport for solid‐state Li metal batteries DOI Creative Commons

Ziyang Liang,

Chang Liu, Xiang Bai

et al.

InfoMat, Journal Year: 2024, Volume and Issue: unknown

Published: July 30, 2024

Abstract Solid‐state Li metal battery has attracted increasing interests for its potentially high energy density and excellent safety assurance, which is a promising candidate next generation system. However, the low ionic conductivity + transport number of solid‐state polymer electrolytes limit their practical application. Herein, composite electrolyte with self‐inserted structure proposed using layered double hydroxides (LDHs) as dopant to achieve fast channel in poly(vinylidene‐co‐trifluoroethylene) [P(VDF‐TrFE)] based electrolyte. In such electrolyte, P(VDF‐TrFE) an all‐trans conformation, all fluorine atoms locate on one side chain, providing highways. Meanwhile, LDH can immobilize anions salts electrostatic interactions, promoting dissociation salts, thereby enhancing (6.4 × 10 −4 S cm −1 ) transference (0.76). The anion immobilization effect realize uniform electric field distribution at anode surface suppress dendritic growth. Moreover, hydrogen bonding interaction between chains also endows strong mechanical properties. Thus, room temperature, || symmetric cells be stably cycled over 1000 h current 0.2 mA −2 , full LiFePO 4 cathode deliver capacity retention (>95%) after 200 cycles. This work offers route construct transport. image

Language: Английский

Citations

5
Development of composite electrolyte membranes with functional polymer nanofiber frameworks DOI Creative Commons
Hiroyoshi Kawakami

Polymer Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Language: Английский

Citations

0
Synergistic Anion–Cation Chemistry Enables Highly Stable Zn Metal Anodes DOI
Yanqun Lv, Chenyue Huang, Ming Zhao

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Engineering aqueous electrolytes with an ionic liquid (IL) for the zinc (Zn) metal anode has been reported to enhance electrochemical performances of Zn batteries (ZMBs). Despite these advancements, effects IL and mechanisms involving their anions cations have scarcely investigated. Here, we introduce a novel electrolyte design strategy that synergizes anion-cation chemistry using halogen-based elucidates underlying mechanism. The strongly preferentially adsorbed halogen guide formation water-poor electrical double layer (EDL) by imidazole-based cations, resulting in halide-rich inorganic interphase. This synergistic interaction significantly mitigates corrosion at anode-electrolyte interface, while interphase promotes dense deposition. Consequently, battery exhibits superior performance, including high reversibility (99.74%) ultralong cycle life (20,000 cycles). combines traditional single solid classic EDL mechanism, substantially enhancing performance ZMBs.

Language: Английский

Citations

0
Tuning electronic structure of MOF-based solid-state electrolytes to activate dormant lithium and facilitate ion transport kinetics towards lithium metal batteries DOI
Qing Liu, Qi An, Kun Zeng

et al.

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: 18(10), P. 4934 - 4948

Published: Jan. 1, 2025

A MOF(Ti-Co) membrane with abundant catalytic sites enhances Li + transport and anion confinement. Spontaneous redox boosts charge-transfer kinetics, improves utilization suppresses dendrite formation, improving electrochemical performance.

Language: Английский

Citations

0
Enabling fast-charging capability of high-voltage solid-state lithium metal batteries by in-situ composite of COF into polymer electrolyte DOI

Jiazhu Guan,

X.B. Li,

Luqi Zhou

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 164071 - 164071

Published: May 1, 2025

Language: Английский

Citations

0