Size effects in lithium ion batteries

作     者：姚胡蓉 殷雅侠 郭玉国 Hu-Rong Yao;Ya-Xia Yin;Yu-Guo Guo;CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Shandong Wina Green Power Co.Ltd.

作者机构：CAS Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China Shandong Wina Green Power Co.Ltd.Shouguang 262705China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2016年第25卷第1期

页      面：51-57页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51225204 and 21303222) the Shandong Taishan Scholarship,China the Ministry of Science and Technology,China(Grant No.2012CB932900) the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA09010000) 

主　　题：lithium ion batteries size effects experiment calculation 

摘      要：Size-related properties of novel lithium battery materials, arising from kinetics, thermodynamics, and newly discov- ered lithium storage mechanisms, are reviewed. Complementary experimental and computational investigations of the use of the size effects to modify electrodes and electrolytes for lithium ion batteries are enumerated and discussed together. Size differences in the materials in lithium ion batteries lead to a variety of exciting phenomena. Smaller-particle materials with highly connective interfaces and reduced diffusion paths exhibit higher rate performance than the corresponding bulk materials. The thermodynamics is also changed by the higher surface energy of smaller particles, affecting, for example, secondary surface reactions, lattice parameter, voltage, and the phase transformation mechanism. Newly discovered lithium storage mechanisms that result in superior storage capacity are also briefly highlighted.