Volume 3,Issue 5
梯度浓度正极材料的电化学稳定性与循环衰减机理分析
用不同浓度的正极材料进行组分梯度改性来优化电化学性能的方法是一种建立在多尺度结构调控基础上的提升稳定性和减少循环损失的改进方法。本文系统地对浓度变化对物相结构、界面行为以及电化学反应进行了考察并阐明了循环过程中容量衰减原因，这就为我们在寻找更加稳定的电池材料提供了一定的理论基础。
[1]KONISHI H, HIRANO T, TAKAMATSU D, et al. Improvement of electrochemical performance of nickel-manganese-based lithium-rich layer-structured cathode material by controlling lithium/transitionmetal ratio[J]. Solid State Ionics, 2018, 327: 39-46.
[2] 肖忠良, 周乘风, 宋刘斌, 等. 富镍锂离子电池三元材料NCM的研 究进展[J]. 化工进展, 2020, 39(1): 216-223. XIAO Zhongliang, ZHOU Chengfeng, SONG Liubin, et al. Research progress of ternary material NCM for nickel-rich lithium ion battery[J]. Chemical Industry and Engineering Progress, 2020, 39(1): 216-223.
[3]GUAN P Y, ZHOU L, YU Z L, et al. Recent progress of surface coating on cathode materials for high-performance lithium-ion batteries[J]. Journal of Energy Chemistry,2020, 43: 220-235.
[4]HRYU H H, PARK N Y, SEO J H, et al. A highly stabilized Ni-rich NCA cathode for high-energy lithium-ion batteries[J]. Materials Today, 2020, 36: 73-82.
[5] 陈鹏, 肖冠, 廖世军. 具有不同组成的镍钴锰三元材料的最新研究 进展[J]. 化工进展, 2016, 35(1): 166-174.