Disiloxanes Containing Tertiary Amine and Dioxaborolane Groups as Bifunctional Electrolyte Additive for Improved Cycling Life of LiNi0.8Co0.1Mn0.1O2/Graphite Batteries
文献类型：期刊论文
| 作者 | Chen, Cheng; Yan, Xiaodan ; Zhang, Lingzhi
|
| 刊名 | CHEMELECTROCHEM
 |
| 出版日期 | 2022-03-29 |
| 卷号 | 9期号:6页码:6 |
| 关键词 | Cycle life Dioxaborolane Electrolyte additive Nickel-rich cathode LiNi0 8Co0 1Mn0 1O2 |
| ISSN号 | 2196-0216 |
| DOI | 10.1002/celc.202101628 |
| 通讯作者 | Zhang, Lingzhi(lzzhang@ms.giec.ac.cn) |
| 英文摘要 | A new disiloxane compound with tertiary amine and dioxaborolane group, N,N-dimethyl-2-(3-(1,1,3,3-tetramethyl-3-(3-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethoxy)propyl)disiloxanyl)propoxy)ethan-1-amine (TMBDSA), is designed and synthesized as functional electrolyte additive for improving the cycling stability of high-capacity nickel-rich LiNi0.8Co0.1Mn0.1O2 (NCM811). The NCM811/graphite full cell test shows that the cycling stability is considerably improved by adding TMBDSA (0.2 wt.%) in the baseline electrolyte, retaining 88 % of initial capacity as compared with 71 % for the cell with the baseline electrolyte at 1 C after 200 cycles. Even at a high rate of 10 C, the cell with TMBDSA delivers a high capacity of 140.2 mAh/g and outstanding cycling stability at high temperatures of 55 degrees C. The surface analysis and density functional theory calculation reveal that TMBDSA is oxidized prior to the carbonate components in the electrolyte to form a protective interphase layer on the cathode surface. In addition, TMBDSA can significantly suppress the hydrolysis of LiPF6 and the dissolution of transition metal ions (Ni, Co, and Mn) owing to the acid scavenging function of tertiary amine moiety. All the results demonstrate that TMBDSA can be potentially used as an efficient electrolyte additive for improving the cycling life of high energy density lithium-ion batteries using nickel-rich NCM811 cathode. |
| WOS关键词 | LAYERED OXIDE CATHODES ; LITHIUM-ION BATTERY ; INTERFACIAL STABILITY ; THERMAL-STABILITY ; PERFORMANCE ; CARBONATE ; LINI0.6CO0.2MN0.2O2 ; HYDROLYSIS |
| 资助项目 | K. C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; Dongguan Municipal Project of Science and Technology |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000773947300011 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | K. C. Wong Education Foundation ; National Natural Science Foundation of China ; Dongguan Municipal Project of Science and Technology |
| 源URL | [http://ir.giec.ac.cn/handle/344007/36323]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Lingzhi |
| 作者单位 | Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Cheng,Yan, Xiaodan,Zhang, Lingzhi. Disiloxanes Containing Tertiary Amine and Dioxaborolane Groups as Bifunctional Electrolyte Additive for Improved Cycling Life of LiNi0.8Co0.1Mn0.1O2/Graphite Batteries[J]. CHEMELECTROCHEM,2022,9(6):6. |
| APA | Chen, Cheng,Yan, Xiaodan,&Zhang, Lingzhi.(2022).Disiloxanes Containing Tertiary Amine and Dioxaborolane Groups as Bifunctional Electrolyte Additive for Improved Cycling Life of LiNi0.8Co0.1Mn0.1O2/Graphite Batteries.CHEMELECTROCHEM,9(6),6. |
| MLA | Chen, Cheng,et al."Disiloxanes Containing Tertiary Amine and Dioxaborolane Groups as Bifunctional Electrolyte Additive for Improved Cycling Life of LiNi0.8Co0.1Mn0.1O2/Graphite Batteries".CHEMELECTROCHEM 9.6(2022):6. |
入库方式： OAI收割
来源：广州能源研究所
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