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Title: Designing In-Situ-Formed Interphases Enables Highly Reversible Cobalt-Free LiNiO 2 Cathode for Li-ion and Li-metal Batteries

Abstract

Cathode materials control both the energy density and cost of Li-ion and Li-metal batteries. The cobalt-free LiNiO 2 with relatively low cost and extremely high theoretical energy density (~1,050 Wh kg –1) is one of the most promising cathode materials for high-energy batteries. However, the continuous Ni dissolution, structural disordering, particle cracking, and unstable cathode electrolyte interphase (CEI) hinder its applications. Here, we surmount these challenges by forming a robust fluoride (F)- and boron (B)-rich CEI on LiNiO 2 using a high-fluorinated electrolyte with LiDFOB additive. The LiNiO 2 cathode maintains an unprecedentedly high capacity retention of >80% after 400 deep cycles at a high charge cut-off voltage of 4.4 V (versus Li/Li +). In addition, the electrolyte forms an F- and B-rich interphase on the Li metal and graphite anodes, allowing stable cycling of full cells. Here, this work sheds light on designing interfacial chemistry for high-energy cathodes, and its principle is applicable for other alkali metal ion cathodes.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3]; ORCiD logo [2];  [2];  [2];  [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1566883
Report Number(s):
BNL-212098-2019-JAAM
Journal ID: ISSN 2542-4351
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Joule
Additional Journal Information:
Journal Name: Joule; Journal ID: ISSN 2542-4351
Publisher:
Elsevier - Cell Press
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; fluorinated electrolyte; cathode electrolyte interphase; cobalt-free cathode; high energy density; lithium metal/ion battery

Citation Formats

Deng, Tao, Fan, Xiulin, Cao, Longsheng, Chen, Ji, Hou, Singyuk, Ji, Xiao, Chen, Long, Li, Shuang, Zhou, Xiuquan, Hu, Enyuan, Su, Dong, Yang, Xiao-Qing, and Wang, Chunsheng. Designing In-Situ-Formed Interphases Enables Highly Reversible Cobalt-Free LiNiO2 Cathode for Li-ion and Li-metal Batteries. United States: N. p., 2019. Web. doi:10.1016/j.joule.2019.08.004.
Deng, Tao, Fan, Xiulin, Cao, Longsheng, Chen, Ji, Hou, Singyuk, Ji, Xiao, Chen, Long, Li, Shuang, Zhou, Xiuquan, Hu, Enyuan, Su, Dong, Yang, Xiao-Qing, & Wang, Chunsheng. Designing In-Situ-Formed Interphases Enables Highly Reversible Cobalt-Free LiNiO2 Cathode for Li-ion and Li-metal Batteries. United States. doi:10.1016/j.joule.2019.08.004.
Deng, Tao, Fan, Xiulin, Cao, Longsheng, Chen, Ji, Hou, Singyuk, Ji, Xiao, Chen, Long, Li, Shuang, Zhou, Xiuquan, Hu, Enyuan, Su, Dong, Yang, Xiao-Qing, and Wang, Chunsheng. Wed . "Designing In-Situ-Formed Interphases Enables Highly Reversible Cobalt-Free LiNiO2 Cathode for Li-ion and Li-metal Batteries". United States. doi:10.1016/j.joule.2019.08.004.
@article{osti_1566883,
title = {Designing In-Situ-Formed Interphases Enables Highly Reversible Cobalt-Free LiNiO2 Cathode for Li-ion and Li-metal Batteries},
author = {Deng, Tao and Fan, Xiulin and Cao, Longsheng and Chen, Ji and Hou, Singyuk and Ji, Xiao and Chen, Long and Li, Shuang and Zhou, Xiuquan and Hu, Enyuan and Su, Dong and Yang, Xiao-Qing and Wang, Chunsheng},
abstractNote = {Cathode materials control both the energy density and cost of Li-ion and Li-metal batteries. The cobalt-free LiNiO2 with relatively low cost and extremely high theoretical energy density (~1,050 Wh kg–1) is one of the most promising cathode materials for high-energy batteries. However, the continuous Ni dissolution, structural disordering, particle cracking, and unstable cathode electrolyte interphase (CEI) hinder its applications. Here, we surmount these challenges by forming a robust fluoride (F)- and boron (B)-rich CEI on LiNiO2 using a high-fluorinated electrolyte with LiDFOB additive. The LiNiO2 cathode maintains an unprecedentedly high capacity retention of >80% after 400 deep cycles at a high charge cut-off voltage of 4.4 V (versus Li/Li+). In addition, the electrolyte forms an F- and B-rich interphase on the Li metal and graphite anodes, allowing stable cycling of full cells. Here, this work sheds light on designing interfacial chemistry for high-energy cathodes, and its principle is applicable for other alkali metal ion cathodes.},
doi = {10.1016/j.joule.2019.08.004},
journal = {Joule},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

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This content will become publicly available on September 4, 2020
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