Competitive Solvation-Induced Concurrent Protection on the Anode and Cathode toward a 400 Wh kg(-1) Lithium Metal Battery
文献类型：期刊论文
| 作者 | Deng, Wei; Dai, Wenhui; Zhou, Xufeng; Han, Qigao; Fang, Wei; Dong, Ning; He, Bangyi; Liu, Zhaoping |
| 刊名 | ACS ENERGY LETTERS
 |
| 出版日期 | 2021 |
| 卷号 | 6期号:1页码:115-123 |
| 关键词 | HIGH-ENERGY GAS GENERATION LI DEPOSITION GROWTH ELECTROLYTES SEI DECOMPOSITION CARBONATE MECHANISM DEPLETION |
| 英文摘要 | The unstable electrode/electrolyte interface is one of the key obstacles for practical Ah-level Li metal batteries, but an efficient approach that can construct a stable interface on both a cathode and an anode simultaneously is lacking. Herein, on the basis of a strategy for regulating electrolyte solvation chemistry, fluoroether as a destabilizer is introduced to disturb the Li+ solvation sheath and weaken the interaction between Li+ and carbonyl of carbonate-based solvents, which renders recrystallization of LiPO2F2 from the electrolyte for concurrent surface protection on both the anode and the cathode. Decomposition of LiPO2F2 forms Li3PO4 and LiF, which rebuild the electrode/electrolyte interface and prevent oxidation of carbonate solvent under a high voltage of 4.6 V. Using this strategy, the Li symmetrical cell can sustain 10 mAh cm(-2) Li stripping/plating for 1000 h; a 3.62 Ah pouch cell of Li/Li-rich layered oxide with a N/P ratio of 2.0 and an electrolyte injection ratio of 2.49 g/Ah exhibit an ultrahigh energy density of 430 Wh kg(-1) and an extended lifespan. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22294]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Liu, ZP (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. 2.Zhou, XF 3.Liu, ZP (corresponding author), Chinese Acad Sci, Adv Li Ion Battery Engn Lab Zhejiang Prov, Key Lab Graphene Technol & Applicat Zhejiang Prov, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China. 4.Liu, ZP (corresponding author), Chinese Acad Sci, CAS Engn Lab Graphene, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Deng, Wei,Dai, Wenhui,Zhou, Xufeng,et al. Competitive Solvation-Induced Concurrent Protection on the Anode and Cathode toward a 400 Wh kg(-1) Lithium Metal Battery[J]. ACS ENERGY LETTERS,2021,6(1):115-123. |
| APA | Deng, Wei.,Dai, Wenhui.,Zhou, Xufeng.,Han, Qigao.,Fang, Wei.,...&Liu, Zhaoping.(2021).Competitive Solvation-Induced Concurrent Protection on the Anode and Cathode toward a 400 Wh kg(-1) Lithium Metal Battery.ACS ENERGY LETTERS,6(1),115-123. |
| MLA | Deng, Wei,et al."Competitive Solvation-Induced Concurrent Protection on the Anode and Cathode toward a 400 Wh kg(-1) Lithium Metal Battery".ACS ENERGY LETTERS 6.1(2021):115-123. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。