Unlocking the dissolution mechanism of phosphorus anode for lithium-ion batteries

doi:10.1016/j.ensm.2021.02.030

CORC > 金属研究所 > 中国科学院金属研究所

	Unlocking the dissolution mechanism of phosphorus anode for lithium-ion batteries
	Liu, Cheng 1; Han, Muyao 1; Cao, Yu 1; Chen, Long 3; Ren, Wencai 3; Zhou, Guangmin 4,5; Chen, Aibing 2; Sun, Jie 1,6
刊名	ENERGY STORAGE MATERIALS
	2021-05-01
卷号	37 页码:417-423
关键词	Phosphorus Polyphosphides Shuttle effect LiF
ISSN号	2405-8297
DOI	10.1016/j.ensm.2021.02.030
通讯作者	Chen, Aibing(chen_ab@163.com) ; Sun, Jie(jies@tju.edu.cn)
英文摘要	Phosphorus is a promising anode material for fast-charging in lithium-ion batteries because of the combined advantages of high theoretical mass and volume specific capacity as well as a relatively low, yet safe lithiation potential to avoid Li metal dendrite formation. Previous studies have shown that the properties of phosphorus are similar to silicon. Both of their electrochemical performance are limited by the huge volumetric expansion during lithiation process and low electronic conductivity, however, there is still unknown exact mechanism of phosphorus. Here, we report that its lithium storage behavior is similar to that of sulfur because they are both molecular crystals, in which the fracture of P-P bonds generates the small molecules of polyphosphides, which can combine with the solvent via strong interaction, leading to the dissolution and shuttle effect, leading to a series of critical problems like active phosphorus loss and counter electrode corrosion. It is one of the main reasons for capacity decay. To address this issue, we introduced LiF as an additive, which provides the chemical adsorption of polyphosphides to suppress the shuttle effect, enabling an excellent long-term cycling stability with the capacity retention of 91.1% after 500 cycle.
资助项目	National Key Research and Development Program of China[2019YFE0118800] ; National Natural Science Foundation of China[22005215] ; Tianjin Science and Technology Project[19YFSLQY00070] ; Hebei Province Innovation Ability Promotion Project[20544401D]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000632780200004
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Tianjin Science and Technology Project ; Hebei Province Innovation Ability Promotion Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/161950]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, Aibing; Sun, Jie
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300072, Peoples R China 2.Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, 70 Yuhua Rd, Shijiazhuang 050018, Hebei, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 5.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 6.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, Cheng,Han, Muyao,Cao, Yu,et al. Unlocking the dissolution mechanism of phosphorus anode for lithium-ion batteries[J]. ENERGY STORAGE MATERIALS,2021,37:417-423.
APA	Liu, Cheng.,Han, Muyao.,Cao, Yu.,Chen, Long.,Ren, Wencai.,...&Sun, Jie.(2021).Unlocking the dissolution mechanism of phosphorus anode for lithium-ion batteries.ENERGY STORAGE MATERIALS,37,417-423.
MLA	Liu, Cheng,et al."Unlocking the dissolution mechanism of phosphorus anode for lithium-ion batteries".ENERGY STORAGE MATERIALS 37(2021):417-423.