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Engineering an Insoluble Cathode Electrolyte Interphase Enabling High Performance NCM811//Graphite Pouch Cell at 60 degrees C
Chen, Yuqing1; He, Qiu2; Mo, Ying1; Zhou, Wang1; Zhao, Yun3,4; Piao, Nan5; Liu, Chi6; Xiao, Peitao7; Liu, Hui6; Li, Baohua3,4; Chen, Shi8; Wang, Li9; He, Xiangming9; Xing, Lidan10,11; Liu, Jilei1
Corresponding AuthorHe, Xiangming(hexm@tsinghua.edu.cn) ; Liu, Jilei(liujilei@hnu.edu.cn)
2022-07-21
Source PublicationADVANCED ENERGY MATERIALS
ISSN1614-6832
Pages14
AbstractHigh-energy lithium-ion batteries (LIBs) can be realized with the use of nickel-rich materials, however, their reversible operation requires long-term cathode-electrolyte interfacial (CEI) stability, especially for high-temperature applications, but how the CEIs evolves during operation is still a mystery. The unstable CEIs have been recently ascribed to them generating/disappearing/regenerating during Li+ extraction/insertion by in situ Fourier Transform Infrared Spectroscopy spectrum. Herein, a strategy of insoluble CEI is proposed toward addressing the interfacially induced deterioration of cathodes with a focus on Ni-rich layered oxides. Incorporating unsaturated units (C=C/C C) to siloxane as electrolyte additives advances the commercial LiNi0.3Co0.1Mn0.1O2/graphite cells up to around 300 cycles at 60 degrees C with more than 85% capacity retention, along with the LiCoO2 cells reaching similar to 90% capacity retention over 350 cycles under 80 degrees C. The experimentally and theoretically detailed investigation shows that the higher unsaturation bond with high reactive sites show more polymerization via a 3D topological pathway to form insoluble CEI species, leading to suppression of parasitic reactions, corrosive acid, transition-metal dissolution, stress corrosive cracking, and impedance growth. The scientific discoveries of this study highlight the pivotal role of electrode-electrolyte interactions and recapitulates the tried-and-true "electrolyte" approach for the future development of high-energy batteries under extreme temperature conditions.
Keywordcathode electrolyte interphases dynamic evolution electrolyte additives high temperatures in situ FTIR unsaturation
Funding OrganizationNational Natural Science Foundation of China ; Outstanding Young Scientists Research Funds from Hunan Province ; Major Science and Technology Program of Hunan Province
DOI10.1002/aenm.202201631
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[U21A2081] ; National Natural Science Foundation of China[22075074] ; Outstanding Young Scientists Research Funds from Hunan Province[2020JJ2004] ; Major Science and Technology Program of Hunan Province[2020WK2013]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000830232800001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174657
Collection中国科学院金属研究所
Corresponding AuthorHe, Xiangming; Liu, Jilei
Affiliation1.Hunan Univ, Coll Mat Sci & Engn, Hunan Joint Int Lab Adv Mat & Technol Clean Energ, Hunan Prov Key Lab Adv Carbon Mat & Appl Technol, Changsha 410082, Peoples R China
2.Wuhan Univ Technol, Int Sch Mat Sci & Engn, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China
3.Tsinghua Shenzhen Int Grad Sch SIGS, Shenzhen Key Lab Power Battery Safety, Shenzhen 518055, Peoples R China
4.Tsinghua Shenzhen Int Grad Sch SIGS, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
6.Hunan Agr Univ, Sch Chem & Mat Sci, Changsha 410128, Peoples R China
7.Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha 410073, Peoples R China
8.Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab, Minist Educ, Ave Univ, Taipa 999078, Macau, Peoples R China
9.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
10.South China Normal Univ, Key Lab ETESPG GHEI, Engn Res Ctr MTEES, Minist Educ,Res Ctr BMET Guangdong Prov,Engn Lab, Guangzhou 510006, Peoples R China
11.South China Normal Univ, Innovat Platform ITBMD Guangzhou Municipal, Sch Chem, Guangzhou 510006, Peoples R China
Recommended Citation
GB/T 7714
Chen, Yuqing,He, Qiu,Mo, Ying,et al. Engineering an Insoluble Cathode Electrolyte Interphase Enabling High Performance NCM811//Graphite Pouch Cell at 60 degrees C[J]. ADVANCED ENERGY MATERIALS,2022:14.
APA Chen, Yuqing.,He, Qiu.,Mo, Ying.,Zhou, Wang.,Zhao, Yun.,...&Liu, Jilei.(2022).Engineering an Insoluble Cathode Electrolyte Interphase Enabling High Performance NCM811//Graphite Pouch Cell at 60 degrees C.ADVANCED ENERGY MATERIALS,14.
MLA Chen, Yuqing,et al."Engineering an Insoluble Cathode Electrolyte Interphase Enabling High Performance NCM811//Graphite Pouch Cell at 60 degrees C".ADVANCED ENERGY MATERIALS (2022):14.
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