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Prescribing Functional Additives for Treating the Poor Performances of High-Voltage (5 V-class) LiNi0.5Mn1.5O4/MCMB Li-Ion Batteries

文献类型：期刊论文

作者Xu, Gaojie1; Pang, Chunguang1,2; Chen, Bingbing1; Ma, Jun1; Wang, Xiao1; Chai, Jingchao1; Wang, Qingfu1; An, Weizhong2; Zhou, Xinhong3; Cui, Guanglei1
刊名ADVANCED ENERGY MATERIALS
出版日期2018-03-26
卷号8期号:9
关键词Functional Additives Combination High-voltage Li-ion Batteries Solid-electrolyte Interface Analysis Synergistic Effect Well-treated Performances
ISSN号1614-6832
DOI10.1002/aenm.201701398
文献子类Article
英文摘要In this paper, tris(trimethylsilyl) phosphite (TMSP) and 1,3-propanediolcyclic sulfate (PCS) are unprecedentedly prescribed as binary functional additives for treating the poor performances of high-voltage (5 V-class) LiNi0.5Mn1.5O4/MCMB (graphitic mesocarbon microbeads) Li-ion batteries at both room temperature and 50 degrees C. The high-voltage LiNi0.5Mn1.5O4/MCMB cell with binary functional additives shows a preponderant discharge capacity retention of 79.5% after 500 cycles at 0.5 C rate at room temperature. By increasing the current intensity from 0.2 to 5 C rate, the discharge capacity retention of the high-voltage cell with binary functional additives is approximate to 90%, while the counterpart is only approximate to 55%. By characterizations, it is rationally demonstrated that the binary functional additives decompose and participate in the modification of solid-electrolyte interface layers (both electrodes), which are more conductive, protective, and resistant to electrolyte oxidative/reductive decompositions (accompanying active-Li+ consuming parasitic reactions) due to synergistic effects. Specifically, the TMSP additive can stabilize LiPF6 salt and scavenge erosive hydrofluoric acid. More encouragingly, at 50 degrees C, the high-voltage cell with binary functional additives holds an ultrahigh discharge capacity retention of 79.5% after 200 cycles at 1 C rate. Moreover, a third designed self-extinguishing flame-retardant additive of (ethoxy)-pentafluoro-cyclo-triphosphazene (PFPN) is introduced for reducing the flammability of the aforementioned binary functional additives containing electrolyte.
WOS关键词ELECTROLYTE ADDITIVES ; TRIS(TRIMETHYLSILYL) PHOSPHITE ; POUCH CELLS ; ELEVATED-TEMPERATURE ; VINYLENE CARBONATE ; FLUORINATED ELECTROLYTES ; FAILURE-MECHANISM ; ETHYLENE SULFITE ; ELECTRODE/ELECTROLYTE INTERFACE ; ELECTROCHEMICAL PERFORMANCE
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种英语
WOS记录号WOS:000429318400003
出版者WILEY-V C H VERLAG GMBH
资助机构"135" Projects Fund of CAS-QIBEBT Director Innovation Foundation ; Think-Tank Mutual Fund of Qingdao Energy Storage Industry Scientific Research ; Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA09010105) ; National Natural Science Foundation of China(51502319 ; Shandong Provincial Natural Science Foundation(ZR2016BQ18) ; 21473228)
源URL[http://ir.qibebt.ac.cn/handle/337004/10805]  
专题青岛生物能源与过程研究所_仿生能源与储能系统团队
通讯作者Cui, Guanglei
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Res Inst, 189 Songling Rd, Qingdao 266101, Peoples R China
2.Ocean Univ China, Coll Chem & Chem Engn, 238 Songling Rd, Qingdao 266100, Peoples R China
3.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China
4.Chinese Acad Sci, Inst Phys, Key Lab Renewable Energy, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Gaojie,Pang, Chunguang,Chen, Bingbing,et al. Prescribing Functional Additives for Treating the Poor Performances of High-Voltage (5 V-class) LiNi0.5Mn1.5O4/MCMB Li-Ion Batteries[J]. ADVANCED ENERGY MATERIALS,2018,8(9).
APA Xu, Gaojie.,Pang, Chunguang.,Chen, Bingbing.,Ma, Jun.,Wang, Xiao.,...&Chen, Liquan.(2018).Prescribing Functional Additives for Treating the Poor Performances of High-Voltage (5 V-class) LiNi0.5Mn1.5O4/MCMB Li-Ion Batteries.ADVANCED ENERGY MATERIALS,8(9).
MLA Xu, Gaojie,et al."Prescribing Functional Additives for Treating the Poor Performances of High-Voltage (5 V-class) LiNi0.5Mn1.5O4/MCMB Li-Ion Batteries".ADVANCED ENERGY MATERIALS 8.9(2018).

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来源：青岛生物能源与过程研究所

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