A Novel Strategy to Suppress Capacity and Voltage Fading of Li- and Mn-Rich Layered Oxide Cathode Material for Lithium-Ion Batteries

标题

A Novel Strategy to Suppress Capacity and Voltage Fading of Li- and Mn-Rich Layered Oxide Cathode Material for Lithium-Ion Batteries

作者

作者:Zhang, SM (Zhang, Shiming)^[1,2 ]; Gu, HT (Gu, Haitao)^[3 ]; Pan, HG (Pan, Hongge)^[1,2 ]; Yang, SH (Yang, Suhui)^[1,2 ]; Du, WB (Du, Wubin)^[1,2 ]; Li, X (Li, Xiang)^[1,2 ]; Gao, MX (Gao, Mingxia)^[1,2 ]; Liu, YF (Liu, Yongfeng)^[1,2 ]; Zhu, M (Zhu, Min)^[4 ]; Ouyang, LZ (Ouyang, Liuzhang)^[4 ]; Jian, DC (Jian, Dechao)^[3 ]; Pan, F (Pan, Feng)^[5 ]更多内容更少内容

期刊信息

摘要

Poor cycling stability is one of the key scientific issues needing to be solved for Li- and Mn-rich layered oxide cathode. In this paper, sodium carboxymethyl cellulose (CMC) is first used as a novel binder in Li1.2Ni0.13Co0.13Mn0.54O2 cathode to enhance its cycling stability. Electrochemical performance is conducted by galvanostatic charge and discharge. Structure and morphology are characterized by X-ray diffraction, scanning electronic microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. Results reveal that the CMC as binder can not only stabilize the electrode structure by preventing the electrode materials to detach from the current collector but also suppress the voltage fading of the Li1.2Ni0.13Co0.13Mn0.54O2 cathode due to Na+ ions doping. Most importantly, the dissolution of metal elements from the cathode materials into the electrolyte is also inhibited.

关键词

KeyWords Plus:ENHANCED CYCLING STABILITY; ELECTROCHEMICAL PERFORMANCE; SURFACE MODIFICATION; POSITIVE ELECTRODE; LI2MNO3 COMPONENT; SOLID-SOLUTIONS; RATE CAPABILITY; TEMPERATURE; ACTIVATION; DECAY

作者信息

作者信息

通讯作者地址:Pan, HG; Liu, YF (通讯作者)

Zhejiang Univ, State Key Lab Silicon Mat, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310027, Zhejiang, Peoples R China.   增强组织信息的名称     Zhejiang University

通讯作者地址:Pan, HG; Liu, YF (通讯作者)

Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China.   增强组织信息的名称     Zhejiang University

地址:

	[ 1 ] Zhejiang Univ, State Key Lab Silicon Mat, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310027, Zhejiang, Peoples R China   增强组织信息的名称     Zhejiang University
	[ 2 ] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China   增强组织信息的名称     Zhejiang University
	[ 3 ] Shanghai Inst Space Power Sources, Shanghai 201100, Peoples R China
	[ 4 ] South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 5 ] Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China   增强组织信息的名称     Peking University     University Town of Shenzhen

电子邮件地址:honggepan@zju.edu.cn; mselyf@zju.zju.edu.cn

出版商

WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY

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