Intragranular cracking as a critical barrier for high-voltage usage of layer-structured cathode for lithium-ion batteries

• Published in: Nature communications Vol. 8; no. 1; p. 14101
• Main Authors: Yan, Pengfei, Zheng, Jianming, Gu, Meng, Xiao, Jie, Zhang, Ji-Guang, Wang, Chong-Min
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 16.01.2017; Nature Publishing Group; Nature Portfolio
• Subjects: 639/301/299/161; 639/4077/4079/891; batteries; Cracks; dislocation; electrochemistry; Electrodes; Electrolytes; Electrons; ENERGY STORAGE; Environmental Molecular Sciences Laboratory; high voltage cycling; Humanities and Social Sciences; intragranular crack; layered cathode; Lithium; lithium ion battery; multidisciplinary; Science; Science (multidisciplinary); United States > US

LiNi 1/3 Mn 1/3 Co 1/3 O 2 -layered cathode is often fabricated in the form of secondary particles, consisting of densely packed primary particles. This offers advantages for high energy density and alleviation of cathode side reactions/corrosions, but introduces drawbacks such as intergranular crac...