Rationally designing electrolyte additives for highly improving cyclability of LiNi0.5Mn1.5O4/Graphite cells

阴极 阳极 电解质 石墨 锂(药物) 材料科学 化学工程 相间 无机化学 电池(电) 化学 电极 复合材料 生物 医学 物理 工程类 内分泌学 物理化学 功率(物理) 量子力学 遗传学
作者
Zhiyong Xia,Kuan Zhou,Xiaoyan Lin,Zhangyating Xie,Qiurong Chen,Xiaoqing Li,Jie Cai,Suli Li,Hai Wang,Mengqing Xu,Weishan Li
出处
期刊:Journal of Energy Chemistry [Elsevier BV]
卷期号:91: 266-275 被引量:6
标识
DOI:10.1016/j.jechem.2023.11.045
摘要

High voltage is necessary for high energy lithium-ion batteries but difficult to achieve because of the highly deteriorated cyclability of the batteries. A novel strategy is developed to extend cyclability of a high voltage lithium-ion battery, LiNi0.5Mn1.5O4/Graphite (LNMO/Graphite) cell, which emphasizes a rational design of an electrolyte additive that can effectively construct protective interphases on anode and cathode and highly eliminate the effect of hydrogen fluoride (HF). 5-Trifluoromethylpyridine-trimethyl lithium borate (LTFMP-TMB), is synthesized, featuring with multi-functionalities. Its anion TFMP-TMB− tends to be enriched on cathode and can be preferentially oxidized yielding TMB and radical TFMP.. Both TMB and radical TFMP. can combine HF and thus eliminate the detrimental effect of HF on cathode, while the TMB dragged on cathode thus takes a preferential oxidation and constructs a protective cathode interphase. On the other hand, LTFMP-TMB is preferentially reduced on anode and constructs a protective anode interphase. Consequently, a small amount of LTFMP-TMB (0.2%) in 1.0 M LiPF6 in EC/DEC/EMC (3/2/5, wt%) results in a highly improved cyclability of LNMO/Graphite cell, with the capacity retention enhanced from 52% to 80% after 150 cycles at 0.5 C between 3.5 and 4.8 V. The as-developed strategy provides a model of designing electrolyte additives for improving cyclability of high voltage batteries.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
2秒前
ZZICU完成签到,获得积分10
3秒前
yun尘世发布了新的文献求助10
3秒前
量子星尘发布了新的文献求助10
4秒前
4秒前
6秒前
罗拉发布了新的文献求助10
6秒前
7秒前
7秒前
鱼e完成签到,获得积分10
9秒前
9秒前
10秒前
10秒前
song发布了新的文献求助10
12秒前
ding应助时尚初之采纳,获得10
12秒前
罗拉完成签到,获得积分10
12秒前
12秒前
13秒前
yun尘世完成签到,获得积分10
14秒前
14秒前
自信南霜完成签到,获得积分10
14秒前
tingting9完成签到,获得积分10
17秒前
17秒前
18秒前
卡布奇诺完成签到,获得积分10
18秒前
13223456发布了新的文献求助10
18秒前
青山落日秋月春风完成签到,获得积分10
20秒前
21秒前
22秒前
22秒前
小马甲应助动听的雅绿采纳,获得30
23秒前
1177发布了新的文献求助10
25秒前
25秒前
喜喵喵完成签到,获得积分10
26秒前
26秒前
26秒前
26秒前
11关注了科研通微信公众号
27秒前
123456完成签到,获得积分10
28秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989242
求助须知:如何正确求助?哪些是违规求助? 3531393
关于积分的说明 11253753
捐赠科研通 3270010
什么是DOI,文献DOI怎么找? 1804868
邀请新用户注册赠送积分活动 882084
科研通“疑难数据库(出版商)”最低求助积分说明 809136