Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Aminoalkyldisiloxane as effective electrolyte additive for improving high temperature cycle life of nickel-rich LiNi0.6Co0.2Mn0.2O2/graphite batteries | |
Yan, Xiaodan1 ; Chen, Cheng1; Zhu, Xuequan2; Pan, Lining2; Zhao, Xinyue1; Zhang, Lingzhi1
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| 2020-06-15 | |
| Source Publication | JOURNAL OF POWER SOURCES
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| ISSN | 0378-7753 |
| Volume | 461Pages:10 |
| Corresponding Author | Zhang, Lingzhi(lzzhang@ms.giec.ac.cn) |
| Abstract | A novel aminoakyldisiloxane compound, (3-(N,N-dimethylamino)diethoxypropyl) pentamethyldisiloxane (DSON), is reported as an effective electrolyte additive for improving the electrochemical performances of high energy density power batteries of nickel-rich LiNi0.6Co0.2Mn0.2O2 (NCM622)/graphite. The NCM622/graphite cells using DSON addition in the carbonate-based reference electrolyte exhibit enhanced electrochemical performances, especially high temperature performances including long cycle life and high temperature storage. The pouch cell (1 Ah) with 0.2 wt% DSON retained a capacity of 88% as compared with 84% for that without DSON in electrolyte after 200 cycles at 45 degrees C. The mechanism investigation reveals that DSON acts as a film-forming additive for constructing uniform conductive cathode electrolyte interphase (CEI) layer upon NCM622 particles, which suppresses the internal cracks and prohibits the irreversible phase transformation of NCM622. DSON also serves as an effective water/acid scavenger and inhibits the hydrolysis of LiPF6, thus effectively blocking the occurrence of side reactions and the dissolution of transition metal ions from cathode. Therefore, NCM622 cathode sheet maintains a better integrity surface morphology after 100 cycles. This work demonstrates that aminoakyldisiloxane is promising for practical use as effective electrolyte additive for high energy density power batteries of nickel-rich NCM/graphite. |
| Keyword | Aminoalkyldisiloxane Electrolyte additive Transition metal dissolution High temperature LiNi0.6Co0.2Mn0.2O2/graphite pouch cell |
| DOI | 10.1016/j.jpowsour.2020.228099 |
| WOS Keyword | LITHIUM-ION BATTERY ; ELECTROCHEMICAL PERFORMANCE ; STABILITY ; SAFETY |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | K. C. Wong Education Foundation ; Guangdong Special Support Plan[2014TX01N014] ; Guangdong Provincial Project for Science and Technology[2015B010135008] ; Guangzhou Municipal Project for Science and Technology[2014Y200012] ; National Natural Science Foundation of China[21573239/51602312] |
| WOS Research Area | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| Funding Organization | K. C. Wong Education Foundation ; Guangdong Special Support Plan ; Guangdong Provincial Project for Science and Technology ; Guangzhou Municipal Project for Science and Technology ; National Natural Science Foundation of China |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000530838000002 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26939 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zhang, Lingzhi |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.ShanShan Adv Mat Qu Zhou CO LTD, Qu Zhou 324012, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yan, Xiaodan,Chen, Cheng,Zhu, Xuequan,et al. Aminoalkyldisiloxane as effective electrolyte additive for improving high temperature cycle life of nickel-rich LiNi0.6Co0.2Mn0.2O2/graphite batteries[J]. JOURNAL OF POWER SOURCES,2020,461:10. |
| APA | Yan, Xiaodan,Chen, Cheng,Zhu, Xuequan,Pan, Lining,Zhao, Xinyue,&Zhang, Lingzhi.(2020).Aminoalkyldisiloxane as effective electrolyte additive for improving high temperature cycle life of nickel-rich LiNi0.6Co0.2Mn0.2O2/graphite batteries.JOURNAL OF POWER SOURCES,461,10. |
| MLA | Yan, Xiaodan,et al."Aminoalkyldisiloxane as effective electrolyte additive for improving high temperature cycle life of nickel-rich LiNi0.6Co0.2Mn0.2O2/graphite batteries".JOURNAL OF POWER SOURCES 461(2020):10. |
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