高镍三元层状锂离子电池正极材料：研究进展、挑战及改善策略

栗志展, 秦金磊, 梁嘉宁, 李峥嵘, 王瑞, 王得丽

High-nickel ternary layered cathode materials for lithium-ion batteries： Research progress， challenges and improvement strategies

Zhizhan LI, Jinlei QIN, Jianing LIANG, Zhengrong LI, Rui WANG, Deli WANG

图10 (a)～(b) 浓度梯度外层包覆富镍核的正极颗粒示意图和SEM图[109]；(c) CC90和浓度梯度CSG90正极充放电过程内部形态和结构损伤示意图[111]

Fig. 10 (a)-(b) Schematic diagram and SEM of positive-electrode particle with Ni-rich core surrounded by concentration-gradient outer layer[109]; (c) Schematic description of discharge and charge state: CC90 and CSG90 cathodes showing the internal morphological difference and the sustained damage[111]