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Title: Self-Stabilized LiNi0.8Mn0.1Co0.1O2 in thiophosphate-based all-solid-state batteries through extra LiOH

Abstract

Nickle-rich LiNi0.8Co0.1Mn0.1O2 (NMC 811) cathode material exhibits engaging properties in high energy density and low cost, making it great potential for the next generation high-energy all-solid-state lithium batteries (ASSLBs). However, NMC 811 suffers from severe surface electrochemical, chemical, and voltage incompatibility towards solid-state electrolytes (SSE), especially thiophosphate-based electrolytes like Li6PS5Cl. Although diverse coating methods have been made to overcome this issue, they are typically cumbersome and expensive. A coating strategy that satisfied all the requirements of cost-efficiency, stability, uniformity, scalability, and easy-achieving is still challenging. Here, we developed a LiOH-based surface stabilization strategy that provides a ~10 nm stable permeable layer on NMC 811. After one-step sintering of NMC 811 precursor mixed with LiOH, which is commonly used for NMC 811 lithiation process, excessive LiOH simultaneously distributes on NMC 811 particles. Unlike other reported methods, this coating method can be easily controlled and fabricated without additional complicated processes. By simply controlling the thickness of LiOH layer, which protects the Li6PS5Cl solid electrolyte materials from being oxidized, optimized cycling stability can be obtained for 600 cycles with capacity of 130 mAh g – 1 on average at a wide electrochemical window of 2.50–4.20 V (vs. Li-In).

Authors:
 [1];  [2];  [2];  [3];  [4];  [2];  [1]
+ Show Author Affiliations
  1. Worcester Polytechnic Institute, MA (United States)
  2. Northeastern Univ., Boston, MA (United States)
  3. Rice Univ., Houston, TX (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF)
OSTI Identifier:
1819503
Grant/Contract Number:  
AC02-06CH11357; DMR-1608398; CBET-1924534.
Resource Type:
Accepted Manuscript
Journal Name:
Energy Storage Materials
Additional Journal Information:
Journal Volume: 41; Journal ID: ISSN 2405-8297
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; All-solid-state batteries; Cycle life; Interface engineering; Nickle-rich cathode material; Self-stabilization

Citation Formats

Zhang, Yubin, Sun, Xiao, Cao, Daxian, Gao, Guanhui, Yang, Zhenzhen, Zhu, Hongli, and Wang, Yan. Self-Stabilized LiNi0.8Mn0.1Co0.1O2 in thiophosphate-based all-solid-state batteries through extra LiOH. United States: N. p., 2021. Web. doi:10.1016/j.ensm.2021.06.024.
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Zhang, Yubin, Sun, Xiao, Cao, Daxian, Gao, Guanhui, Yang, Zhenzhen, Zhu, Hongli, & Wang, Yan. Self-Stabilized LiNi0.8Mn0.1Co0.1O2 in thiophosphate-based all-solid-state batteries through extra LiOH. United States. https://doi.org/10.1016/j.ensm.2021.06.024
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Zhang, Yubin, Sun, Xiao, Cao, Daxian, Gao, Guanhui, Yang, Zhenzhen, Zhu, Hongli, and Wang, Yan. Fri . "Self-Stabilized LiNi0.8Mn0.1Co0.1O2 in thiophosphate-based all-solid-state batteries through extra LiOH". United States. https://doi.org/10.1016/j.ensm.2021.06.024. https://www.osti.gov/servlets/purl/1819503.
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@article{osti_1819503,
title = {Self-Stabilized LiNi0.8Mn0.1Co0.1O2 in thiophosphate-based all-solid-state batteries through extra LiOH},
author = {Zhang, Yubin and Sun, Xiao and Cao, Daxian and Gao, Guanhui and Yang, Zhenzhen and Zhu, Hongli and Wang, Yan},
abstractNote = {Nickle-rich LiNi0.8Co0.1Mn0.1O2 (NMC 811) cathode material exhibits engaging properties in high energy density and low cost, making it great potential for the next generation high-energy all-solid-state lithium batteries (ASSLBs). However, NMC 811 suffers from severe surface electrochemical, chemical, and voltage incompatibility towards solid-state electrolytes (SSE), especially thiophosphate-based electrolytes like Li6PS5Cl. Although diverse coating methods have been made to overcome this issue, they are typically cumbersome and expensive. A coating strategy that satisfied all the requirements of cost-efficiency, stability, uniformity, scalability, and easy-achieving is still challenging. Here, we developed a LiOH-based surface stabilization strategy that provides a ~10 nm stable permeable layer on NMC 811. After one-step sintering of NMC 811 precursor mixed with LiOH, which is commonly used for NMC 811 lithiation process, excessive LiOH simultaneously distributes on NMC 811 particles. Unlike other reported methods, this coating method can be easily controlled and fabricated without additional complicated processes. By simply controlling the thickness of LiOH layer, which protects the Li6PS5Cl solid electrolyte materials from being oxidized, optimized cycling stability can be obtained for 600 cycles with capacity of 130 mAh g – 1 on average at a wide electrochemical window of 2.50–4.20 V (vs. Li-In).},
doi = {10.1016/j.ensm.2021.06.024},
journal = {Energy Storage Materials},
number = ,
volume = 41,
place = {United States},
year = {Fri Jun 18 00:00:00 EDT 2021},
month = {Fri Jun 18 00:00:00 EDT 2021}
}
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https://doi.org/10.1016/j.ensm.2021.06.024
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