Electrodeposition of Lithium Manganese Oxide Cathodes for Lithium-Ion Batteries

阴极 锂(药物) 材料科学 碱性电池 氧化物 电极 化学工程 氧化锰 电池(电) 相(物质) 无机化学 冶金 化学 电解质 内分泌学 物理化学 功率(物理) 工程类 有机化学 物理 医学 量子力学
作者
Marjanul Manjum,Golareh Jalilvand,William E. Mustain
出处
期刊:Meeting abstracts 卷期号:MA2022-02 (22): 941-941
标识
DOI:10.1149/ma2022-0222941mtgabs
摘要

Lithium manganese oxides (LMOs) have drawn significant interest as cathode materials for lithium (Li)-ion batteries due to their high thermal stability, high energy density, and a longer cycle life at a lower cost than lithium cobalt oxides. A significant amount of research has been conducted to prepare cathode materials for Li-ion batteries ex-situ and then to integrate them into electrodes after forming a slurry with the binder and deposition onto the current collector. An alternative pathway to achieve active LMO cathodes is to directly synthesize them on the current collector via electrodeposition (ED). Using ED not only could improve active material utilization and electrode mechanical properties, but it may also reduce the cost of electrode fabrication as well as provide a pathway for facile recycling of spent manganese from a number of applications (e.g. alkaline batteries). To date, a few studies have reported the synthesis of LMOs by electrodeposition [1,2]. When doing this, the first step of the process is to deposit manganese oxide (s), Mn x O y . Then, the oxide is lithiated to form the LMOs (i.e. LiMn x O y ). Despite the fact that this process has been demonstrated, and active materials with reasonable capacity have been shown, it is presently unknown what LiMn x O y phase or phases are active. It is also not definitively known which Mn x O y phase(s) is(are) involved in the transformation. To move the application of direct deposition of manganese oxide active phases closer to reality, a critical understanding of the solid-state chemistry for its conversion and energy storage is needed. In this study, Mn oxides were electrochemically prepared by potentiostatic deposition on multiple substrates and treated by lithium hydroxide. After that, the heat treatment of the lithiated deposits gave a mixture of LMOs as the cathode materials on the substrate. This talk will discuss the likely reactions for the formation of LMOs as well as their chemistry during charge/discharge. The morphology and the elemental composition of LMOs will be shown by scanning electron microscopy and energy-dispersive X-ray spectroscopy. The composition and presence of crystalline Mn oxides and LMOs will be clarified by X-ray diffraction. Lastly, results will be shown regarding the cycle performance of the electrochemically prepared LMOs as well as the crystalline phases present after charge-discharge. References: Quan , S. Ohguchi, M. Kawase, H. Tanimura, and N. Sonoyama, J. Power Sources , 244 , 375 (2013). Rana, M. Stan, R. Kloepsch, J. Li, G. Schumacher, E. Welter, I. Zizak, J. Banhart, and M. Winter, Adv. Energy Mater. , 4 , 1300998 (2014).

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
Jasper应助溜达鸡采纳,获得10
刚刚
脑洞疼应助木子李采纳,获得30
1秒前
1秒前
3秒前
4秒前
Etiquette完成签到 ,获得积分10
5秒前
6秒前
精明的沅应助realtimes采纳,获得10
8秒前
10秒前
11秒前
木子李发布了新的文献求助30
14秒前
汉堡包应助dasdwdasd采纳,获得10
14秒前
卜懂得发布了新的文献求助10
15秒前
16秒前
Orange应助梅伊斯采纳,获得10
17秒前
MK完成签到,获得积分10
18秒前
大模型应助科研通管家采纳,获得10
18秒前
香蕉觅云应助科研通管家采纳,获得10
18秒前
18秒前
18秒前
18秒前
18秒前
18秒前
yar应助科研通管家采纳,获得10
18秒前
cindy发布了新的文献求助10
22秒前
gar发布了新的文献求助10
23秒前
老迟到的金鱼应助dentistx采纳,获得10
24秒前
25秒前
dasdwdasd完成签到,获得积分20
26秒前
小巧的牛排完成签到 ,获得积分10
27秒前
ZGZ123发布了新的文献求助15
28秒前
努力哥完成签到,获得积分10
28秒前
30秒前
dasdwdasd发布了新的文献求助10
30秒前
bkagyin应助内丹翠采纳,获得10
30秒前
31秒前
慕青应助曼曼采纳,获得10
32秒前
32秒前
笑南发布了新的文献求助10
32秒前
压垮稻草的最后一只骆驼完成签到,获得积分10
33秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
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 3975375
求助须知:如何正确求助?哪些是违规求助? 3519700
关于积分的说明 11199305
捐赠科研通 3256034
什么是DOI,文献DOI怎么找? 1798049
邀请新用户注册赠送积分活动 877386
科研通“疑难数据库(出版商)”最低求助积分说明 806305