Ionic Conductive Interface Boosting High Performance LiNi_{0.8}Co_{0.1}Mn_{0.1}O₂ for Lithium Ion Batteries

Wen Liu; Xifei Li; Youchen Hao; Hirbod Maleki Kheimeh Sari; Jian Qin; Wei Xiao; Xiujuan Wang; Huijuan Yang; Wenbin Li; Liang Kou; Zhanyuan Tian; Le Shao; Cheng Zhang; Jiujun Zhang

doi:10.1021/acsaem.9b02008

journal article·2020-04-27

Ionic Conductive Interface Boosting High Performance LiNi_0.8Co_0.1Mn_0.1O₂ for Lithium Ion Batteries

Wen Liu, Xifei Li, Youchen Hao, Hirbod Maleki Kheimeh Sari, Jian Qin, Wei Xiao, Xiujuan Wang, Huijuan Yang, Wenbin Li, Liang Kou, Zhanyuan Tian, Le Shao, Cheng Zhang, Jiujun Zhang

ACS Applied Energy Materials· Volume 3· Issue 4

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Source abstract

Abstract

LiNi0.8Co0.1Mn0.1O2 (NCM) is a highly prospective cathode material for high energy density Li-ion batteries (LIBs). Nevertheless, poor cycling performance and rate capability at high cutoff voltages have dramatically blocked its further commercialization. In this study, an ionic conductive interface has been demonstrated to enhance the NCM electrochemical property at the high cutoff voltage of 4.5 V on account of the existence of a Li-ion conductor of Li2SnO3. In comparison to SnO2, Li2SnO3 causes a smoother Li-ion diffusion at the engineered interfaces, lower polarization, slower capacity drop, and voltage fading as well as better H2/H3 reversibility upon cycling. Importantly, it is confirmed that excellent diffusion is beneficial to preservation of reversible phase transition and reduction of polarization, which are directly relative to the superior cyclability and rate capability. This work reveals that building an excellent ionic diffusion interface is feasible for Ni-rich cathodes with simultaneous high capacity and stable cyclability.

Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Technologies Research · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Xi’an Key Laboratory of New Energy Materials and Devices, Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi 710048, China

Shaanxi International Joint Research Center of Surface Technology for Energy Storage Materials, Xi’an 710048, Shaanxi China

State Center for International Cooperation on Designer Low-Carbon & Environmental Materials (CDLCEM), Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China

Shaanxi Coal Industry Chemical Technology Research Institute Company, Ltd., Xian, Shaanxi 710070, China

Institute for Sustainable Energy, Shanghai University, Shanghai 200444, China

Funding

Xi'an University of Technology · China Postdoctoral Science Foundation · National Natural Science Foundation of China · Shaanxi province

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