Brief overview of electrochemical potential in lithium ion batteries

被引：91
作者：
Gao, Jian [1 ,2 ]
Shi, Si-Qi [2 ,3 ]
Li, Hong [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
[2] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China
[3] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
来源：
CHINESE PHYSICS B | 2016年 / 25卷 / 01期
基金：
中国国家自然科学基金;
关键词：
lithium ion batteries; open circuit voltage; Fermi energy level; electrochemical potential; POSITIVE-ELECTRODE MATERIALS; CATHODE MATERIALS; PHASE-DIAGRAM; ENERGY-STORAGE; SOLID-SOLUTION; LI BATTERIES; HIGH-VOLTAGE; AB-INITIO; CHALLENGES; DESIGN;
D O I：
10.1088/1674-1056/25/1/018210
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The physical fundamentals and influences upon electrode materials' open-circuit voltage (OCV) and the spatial distribution of electrochemical potential in the full cell are briefly reviewed. We hope to illustrate that a better understanding of these scientific problems can help to develop and design high voltage cathodes and interfaces with low Ohmic drop. OCV is one of the main indices to evaluate the performance of lithium ion batteries (LIBs), and the enhancement of OCV shows promise as a way to increase the energy density. Besides, the severe potential drop at the interfaces indicates high resistance there, which is one of the key factors limiting power density.
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页数：24
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