Novel carbon coating source for better LiMn0.6Fe0.4PO4/C materials

doi:10.1007/s11581-024-05552-y

IMR OpenIR

	Novel carbon coating source for better LiMn_0.6Fe_0.4PO₄/C materials
	Liu, Guoqiang 1,2; Liu, Fushuang 2; Wang, Qingxiang 2; Liu, Guangyin 3; Wen, Lei 4
通讯作者	Liu, Guoqiang(879084694@qq.com) ; Liu, Guangyin(liugy13@163.com) ; Wen, Lei(leiwen@imr.ac.cn)
	2024-05-08
发表期刊	IONICS
ISSN	0947-7047
页码	8
摘要	Compared with LiFePO4 materials, manganese-based olivine is a promising cathode candidate with high energy and low cost for Li-ion batteries (LIBs). Its rate capability and cyclability challenges still remain even with nano-size and carbon coating. Herein, a high-rate performance is achieved by introducing a novel carbon coating source, poly propylene glycol (PPG 2000). Compared with traditional glucose carbon coating source, it is found that PPG facilitates a highly uniform conductive carbon coating during the carbonized process. Moreover, laser particle size analyzer also suggest that PPG 2000 can act as a highly effective dispersant, which can result in finer primary particles during grinding. Therefore, electronic and ionic conductivity are greatly improved so that the highly Li+ conductive nature of olivine materials can be fully unleashed. The final LiMn0.6Fe0.4PO4/C materials can deliver a capacity of 120 mAhg(-1) even at 10 C rate. This work demonstrates the importance of novel carbon coating source to the active cathode particles and opens upon a new venue for the large-scale fabrication of manganese-based olivine cathode materials.
关键词	Lithium ion batteries Cathode materials LiMn0.6Fe0.4PO4 Carbon coating Electrochemical properties
资助者	National Natural Science Foundation of China
DOI	10.1007/s11581-024-05552-y
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51574081]
WOS研究方向	Chemistry ; Electrochemistry ; Physics
WOS类目	Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS记录号	WOS:001216115500003
出版者	SPRINGER HEIDELBERG
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185899
专题	中国科学院金属研究所
通讯作者	Liu, Guoqiang; Liu, Guangyin; Wen, Lei
作者单位	1.Sichuan Vocat & Tech Coll, Suining 629000, Peoples R China 2.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 3.Nanyang Normal Univ, Coll Chem & Pharmaceut Engn, Nanyang 473061, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guoqiang,Liu, Fushuang,Wang, Qingxiang,et al. Novel carbon coating source for better LiMn_0.6Fe_0.4PO₄/C materials[J]. IONICS,2024:8.
APA	Liu, Guoqiang,Liu, Fushuang,Wang, Qingxiang,Liu, Guangyin,&Wen, Lei.(2024).Novel carbon coating source for better LiMn_0.6Fe_0.4PO₄/C materials.IONICS,8.
MLA	Liu, Guoqiang,et al."Novel carbon coating source for better LiMn_0.6Fe_0.4PO₄/C materials".IONICS (2024):8.