Utilizing Latent Multi‐Redox Activity of p‐Type Organic Cathode Materials toward High Energy Density Lithium‐Organic Batteries

电解质 材料科学 阴极 有机自由基电池 电极 化学工程 锂(药物) 电化学 纳米技术 氧化还原 化学 物理化学 医学 工程类 内分泌学 冶金
作者
Sechan Lee,Kyunam Lee,Kyojin Ku,Jihyun Hong,Soo Young Park,Ji Eon Kwon,Kisuk Kang
出处
期刊:Advanced Energy Materials [Wiley]
卷期号:10 (32) 被引量:66
标识
DOI:10.1002/aenm.202001635
摘要

Abstract Organic electrode materials hold great potential due to their cost‐efficiency, eco‐friendliness, and possibly high theoretical capacity. Nevertheless, most organic cathode materials exhibit a trade‐off relationship between the specific capacity and the voltage, failing to deliver high energy density. Herein, it is shown that the trade‐off can be mitigated by utilizing the multi‐redox capability of p‐type electrodes, which can significantly increase the specific capacity within a high‐voltage region. The molecular structure of 5,10‐dihydro‐5,10‐dimethylphenazine is modified to yield a series of phenoxazine and phenothiazine derivatives with elevated redox potentials by substitutions. Subsequently, the feasibility of the multi‐redox capability is scrutinized for these high‐voltage p‐type organic cathodes, achieving one of the highest energy densities. It is revealed that the seemingly impractical second redox reaction is indeed dependent on the choice of the electrolyte and can be reversibly realized by tailoring the donor number and the salt concentration of the electrolyte, which places the voltage of the multi‐redox reaction within the electrochemical stability window. The results demonstrate that high‐energy‐density organic cathodes can be practically achieved by rational design of multi‐redox p‐type organic electrode materials and the compatibility consideration of the electrolyte, opening up a new avenue toward advanced organic rechargeable 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
寂寞的灵波完成签到 ,获得积分10
2秒前
2秒前
ZXH发布了新的文献求助10
3秒前
4秒前
黄哈哈发布了新的文献求助10
5秒前
5秒前
5秒前
7秒前
ZXH完成签到,获得积分10
8秒前
汉堡包应助LexMz采纳,获得10
9秒前
9秒前
9秒前
9秒前
李春鸿发布了新的文献求助10
11秒前
天天发布了新的文献求助100
11秒前
11秒前
小二郎应助genuine采纳,获得10
12秒前
12秒前
13秒前
zhiwei完成签到 ,获得积分0
14秒前
14秒前
14秒前
letter发布了新的文献求助10
14秒前
北城发布了新的文献求助10
14秒前
吃西瓜不吐冬瓜籽完成签到,获得积分10
15秒前
washy发布了新的文献求助10
15秒前
强健的飞瑶完成签到,获得积分10
16秒前
你的风筝应助jjjdcjcj采纳,获得10
16秒前
17秒前
科研通AI2S应助科研通管家采纳,获得10
17秒前
SciGPT应助科研通管家采纳,获得10
17秒前
17秒前
czh应助科研通管家采纳,获得10
17秒前
17秒前
搜集达人应助科研通管家采纳,获得10
17秒前
深情安青应助科研通管家采纳,获得10
17秒前
CodeCraft应助科研通管家采纳,获得10
17秒前
1111应助科研通管家采纳,获得10
17秒前
17秒前
丘比特应助科研通管家采纳,获得10
17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 3988827
求助须知:如何正确求助?哪些是违规求助? 3531197
关于积分的说明 11252739
捐赠科研通 3269830
什么是DOI,文献DOI怎么找? 1804815
邀请新用户注册赠送积分活动 881915
科研通“疑难数据库(出版商)”最低求助积分说明 809028