title: Enhanced electrochemical properties of LiFePO4 (LFP) cathode using the carboxymethyl cellulose lithium (CMC-Li) as novel binder in lithium-ion battery.
abstract: Novel water-based binder CMC-Li is synthesized using cotton as raw material. The mechanism of the CMC-Li as a binder is reported. Electrochemical properties of batteries cathodes based on commercially available lithium iron phosphate (LiFePO4, LFP) and CMC-Li as a water-soluble binder are investigated. CMC-Li is a novel lithium-ion binder. Compare with conventional poly(vinylidene fluoride) (PVDF) binder, and the battery with CMC-Li as the binder retained 97.8% of initial reversible capacity after 200 cycles at 176 mAh g(-1), which is beyond the theoretical specific capacity of LFP. Constant current charge-discharge test results demonstrate that the LFP electrode using CMC-Li as the binder has the highest rate capability, follow closely by that using PVDF binder. The batteries have good electrochemical property, outstanding pollution-free and excellent stability.
authors.affiliation: College of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing Engineering Technology Research Centre for Cellulose and Its Derivative Materials, Beijing 100081, PR China. Electronic address: qiulei1010@126.com.
authors.forename: Lei
authors.initials: L
authors.lastname: Qiu
authors.affiliation: College of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing Engineering Technology Research Centre for Cellulose and Its Derivative Materials, Beijing 100081, PR China. Electronic address: shaoziqiang409@163.com.
authors.forename: Ziqiang
authors.initials: Z
authors.lastname: Shao
authors.affiliation: College of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing Engineering Technology Research Centre for Cellulose and Its Derivative Materials, Beijing 100081, PR China.
authors.forename: Daxiong
authors.initials: D
authors.lastname: Wang
authors.affiliation: College of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing Engineering Technology Research Centre for Cellulose and Its Derivative Materials, Beijing 100081, PR China.
authors.forename: Wenjun
authors.initials: W
authors.lastname: Wang
authors.affiliation: College of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing Engineering Technology Research Centre for Cellulose and Its Derivative Materials, Beijing 100081, PR China.
authors.forename: Feijun
authors.initials: F
authors.lastname: Wang
authors.affiliation: College of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China; Beijing Engineering Technology Research Centre for Cellulose and Its Derivative Materials, Beijing 100081, PR China.
authors.forename: Jianquan
authors.initials: J
authors.lastname: Wang
keywords: Binder; CMC-Li; Cellulose derivative; LiFePO(4); Lithium battery