Electrochemomechanics of Electrodes in Li-Ion Batteries: A Review

2016 ◽  
Vol 13 (3) ◽  
Author(s):  
Rong Xu ◽  
Kejie Zhao
Keyword(s):  
Early Stage ◽  
High Capacity ◽  
Deep Understanding ◽  
Interfacial Reactions ◽  
Li Ion Batteries ◽  
Electrochemical Processes ◽  
Deformation Plasticity ◽  
Li Ion ◽  
Cavitation Fracture ◽  
Kinetics Of

A Li-ion battery is a system that dynamically couples electrochemistry and mechanics. The electrochemical processes of Li insertion and extraction in the electrodes lead to a wealth of phenomena of mechanics, such as large deformation, plasticity, cavitation, fracture, and fatigue. Likewise, mechanics influences the thermodynamics and kinetics of interfacial reactions, ionic transport, and phase transformation of the electrodes. The emergence of high-capacity batteries particularly enriches the field of electrochemomechanics. This paper reviews recent observations on the intimate coupling between stresses and electrochemical processes, including diffusion-induced stresses, stress-regulated surface charge transfer, interfacial reactions, inhomogeneous growth of lithiated phases, instability of solid-state reaction front (SSRF), as well as lithiation-modulated plasticity and fracture in the electrodes. Most of the coupling effects are at the early stage of study and are to be better understood. We focus on the elaboration of these phenomena using schematic illustration. A deep understanding of the interactions between mechanics and electrochemistry and bridging these interdisciplinary fields can be truly rewarding in the development of resilient high-capacity batteries.

Deep Cycling for High‐Capacity Li‐Ion Batteries

2021 ◽  
pp. 2004998
Author(s):  
Huarong Xia ◽  
Yuxin Tang ◽  
Oleksandr I. Malyi ◽  
Zhiqiang Zhu ◽  
Yanyan Zhang ◽  
...  
Keyword(s):  
High Capacity ◽  
Li Ion Batteries ◽  
Li Ion

Soft-template fabrication of hierarchical nanoparticle iron fluoride as high-capacity cathode materials for Li-ion batteries

2020 ◽  
Vol 364 ◽  
pp. 137293
Author(s):  
Jinfang Lin ◽  
Shuyi Chen ◽  
Licai Zhu ◽  
Zhongzhi Yuan ◽  
Jincheng Liu
Keyword(s):  
Cathode Materials ◽  
High Capacity ◽  
Soft Template ◽  
Li Ion Batteries ◽  
Iron Fluoride ◽  
Li Ion

Unraveling improved electrochemical kinetics of In2Te3-based anodes embedded in hybrid matrix for Li-ion batteries

2022 ◽  
Vol 429 ◽  
pp. 132395
Author(s):  
Seongjoon So ◽  
Jaewook Ko ◽  
Yong Nam Ahn ◽  
Il Tae Kim ◽  
Jaehyun Hur
Keyword(s):  
Electrochemical Kinetics ◽  
Li Ion Batteries ◽  
Hybrid Matrix ◽  
Li Ion ◽  
Kinetics Of

Spinel/Layered Heterostructured Cathode Material for High-Capacity and High-Rate Li-Ion Batteries

2013 ◽  
Vol 25 (27) ◽  
pp. 3722-3726 ◽  
Author(s):  
Feng Wu ◽  
Ning Li ◽  
Yuefeng Su ◽  
Haofang Shou ◽  
Liying Bao ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Capacity ◽  
High Rate ◽  
Li Ion Batteries ◽  
Li Ion

High-rate and long-life of Li-ion batteries using reduced graphene oxide/Co3O4 as anode materials

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24320-24330 ◽  
Author(s):  
Junkai He ◽  
Ying Liu ◽  
Yongtao Meng ◽  
Xiangcheng Sun ◽  
Sourav Biswas ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Capacity ◽  
High Rate ◽  
Microwave Method ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Reduced Graphene ◽  
One Step ◽  
Li Ion ◽  
Long Life

A new one-step microwave method was designed for synthesis of rGO/Co3O4, and the Li-ion battery showed high capacity and long life.

Improved electrochemical performance of LiCoO2 electrodes for high-voltage operations by Ag thin film coating via magnetron sputtering

MRS Advances ◽  
2018 ◽  
Vol 3 (60) ◽  
pp. 3513-3518 ◽  
Author(s):  
Taner Zerrin ◽  
Mihri Ozkan ◽  
Cengiz S. Ozkan
Keyword(s):  
Thin Film ◽  
Magnetron Sputtering ◽  
Electrochemical Performance ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Interface Layer ◽  
Li Ion Batteries ◽  
Electrode Structure ◽  
Li Ion

ABSTRACTIncreasing the operation voltage of LiCoO2 (LCO) is a direct way to enhance the energy density of the Li-ion batteries. However, at high voltages, the cycling stability degrades very fast due to the irreversible changes in the electrode structure, and formation of an unstable solid electrolyte interface layer. In this work, Ag thin film was prepared on commercial LCO cathode by using magnetron sputtering technique. Ag coated electrode enabled an improved electrochemical performance with a better cycling capability. After 100 cycles, Ag coated LCO delivers a discharge capacity of 106.3 mAh g-1 within 3 - 4.5 V at C/5, which is increased by 45 % compared to that of the uncoated LCO. Coating the electrode surface with Ag thin film also delivered an improved Coulombic efficiency, which is believed to be an indication of suppressed parasitic reactions at the electrode interface. This work may lead to new methods on surface modifications of LCO and other cathode materials to achieve high-capacity Li-ion batteries for high-voltage operations.

Stabilization of planar tetra-coordinate silicon in a 2D-layered extended system and design of a high-capacity anode material for Li-ion batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (22) ◽  
pp. 10450-10458 ◽  
Author(s):  
Ming-Jun Sun ◽  
Xinrui Cao ◽  
Zexing Cao
Keyword(s):  
Anode Material ◽  
High Capacity ◽  
Li Ion Batteries ◽  
Extended System ◽  
Electron Storage ◽  
Li Ion

Stabilization of planar tetracoordinate silicon (ptSi) was achieved in a 2D-layered extended system, and the newly designed ptSi SiC8 siligraphene shows novel structural and electron-storage features.

Sign in / Sign up

Export Citation Format

Share Document