Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Charging Conductors By Induction01:15

Charging Conductors By Induction

8.2K
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
8.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Thiourea-derived coating enabled lithium-rich manganese oxide positive electrode in solid-state batteries.

Nature communications·2026
Same author

Origin of crack propagation in lithium cobalt oxide positive electrode for lithium-ion batteries.

Nature communications·2026
Same author

Topological Data Analysis in Materials Science: Principles, Machine Learning Integration, and Application Landscapes.

Chemical reviews·2026
Same author

Polyphosphates-Based Cathode-Electrolyte Interphase for 4.65 V LiCoO<sub>2</sub>.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Roles of Slab-Gliding-Induced Surface Nano-Steps in High-Voltage Instability of LiCoO<sub>2</sub>.

Journal of the American Chemical Society·2026
Same author

MSMO1 promotes chemotherapy resistance through modulation of T-MAS metabolism via PERK/elF2α/ATF4/CHOP pathway.

iScience·2026

相关实验视频

Updated: Sep 16, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.4K

调节LiCoO2的表面结构演变,以提高极端快速充电的耐用性.

Yuhao Du1, Wenguang Zhao1, Zijian Li1

  • 1School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.

ACS nano
|July 12, 2025
PubMed
概括

由于表面变化不均,快速充电会降解离子电池阴极,例如氧化 (LCO). 新的表面涂层提高了均性,提高了电池的耐用性,以更快地充电.

关键词:
液态CO2O2的使用情况.周期稳定性 周期稳定性快速充电 快速充电 快速充电岩盐阶段 - 岩盐阶段结构 结构 演化 演化 演化

更多相关视频

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

15.9K
Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
07:20

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

2.7K

相关实验视频

Last Updated: Sep 16, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.4K
In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

15.9K
Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
07:20

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

2.7K

科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 电池技术 电池技术

背景情况:

  • 离子电池阴极,特别是LiCoO2 (LCO),在快速充电时面临结构性降解.
  • 这种降解背后的精确机制,特别是高充电率下,尚未完全理解.

研究的目的:

  • 为了研究LCO阴极在极速快充 (10°C) 期间的表面结构演变.
  • 阐明表面相变在容量衰减中的作用.
  • 展示表面涂层策略,以提高快速充电性能.

主要方法:

  • 在LCO的4.6V与Li/Li+的现场电化学循环,电流速率为10C.
  • 使用先进的表征技术分析表面结构变化 (摘要中未指明的细节).
  • 在LCO阴极上实施和测试一种新的表面涂层.

主要成果:

  • 极快的充电会导致LCO表面的异质脱.
  • 这导致三相混合物 (分层,旋转,岩盐) 的形成,该混合物扩散到批量中.
  • 岩盐相变厚,阻碍+运输,加速容量衰减.
  • 坚固的表面涂层减轻了异质脱和岩盐阶段的加厚,改善了循环稳定性.

结论:

  • 不同质的Li+脱和随后的岩盐阶段形成是快速充电期间LCO阴极的关键故障机制.
  • 表面修改是一种可行的策略,可以提高LCO电池的快充耐用性.
  • 这项研究为开发高功率应用的先进LCO阴极提供了洞察力.