Electrochemical Characteristics of Layered Transition Metal Oxide Cathode Materials for Lithium Ion Batteries: Surface, Bulk Behavior, and Thermal Properties,Accounts of Chemical Research

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Electrochemical Characteristics of Layered Transition Metal Oxide Cathode Materials for Lithium Ion Batteries: Surface, Bulk Behavior, and Thermal Properties
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-12-19 00:00:00 , DOI: 10.1021/acs.accounts.7b00520
Chixia Tian _{1,

2} , Feng Lin ₁ , Marca M. Doeff ₃

Affiliation

Layered lithium transition metal oxides, in particular, NMCs (LiNi_xCo_yMn_zO₂) represent a family of prominent lithium ion battery cathode materials with the potential to increase energy densities and lifetime, reduce costs, and improve safety for electric vehicles and grid storage. Our work has focused on various strategies to improve performance and to understand the limitations to these strategies, which include altering compositions, utilizing cation substitutions, and charging to higher than usual potentials in cells. Understanding the effects of these strategies on surface and bulk behavior and correlating structure–performance relationships advance our understanding of NMC materials. This also provides information relevant to the efficacy of various approaches toward ensuring reliable operation of these materials in batteries intended for demanding traction and grid storage applications.

中文翻译：

锂离子电池层状过渡金属氧化物正极材料的电化学特性：表面，整体性能和热性能

层状锂过渡金属氧化物，尤其是NMC（LiNi _x Co _y Mn _z O ₂）代表了一系列突出的锂离子电池正极材料，它们有可能增加能量密度和寿命，降低成本，并提高电动汽车和电网存储的安全性。我们的工作集中在各种策略上，以提高性能并了解这些策略的局限性，其中包括更改组成，利用阳离子取代以及充电至比平时更高的电势。了解这些策略对表面和整体性能的影响，并关联结构与性能之间的关系，将进一步加深我们对NMC材料的理解。这也提供了与各种方法的有效性有关的信息，这些方法可确保在要求苛刻的牵引力和电网存储应用的电池中确保这些材料的可靠运行。

更新日期：2017-12-19

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