Unravelling asynchronous oxidation of carbon and lithium carbonate during charging in lithium-carbon dioxide battery

IF 8.1 2区 工程技术 Q1 CHEMISTRY, PHYSICAL Journal of Power Sources Pub Date : 2025-03-13 DOI:10.1016/j.jpowsour.2025.236737
Wanzhen Li , Wentao Wang , Ningxuan Zhu , Chuan Tan , Xiangwen Gao , Yuhui Chen
{"title":"Unravelling asynchronous oxidation of carbon and lithium carbonate during charging in lithium-carbon dioxide battery","authors":"Wanzhen Li ,&nbsp;Wentao Wang ,&nbsp;Ningxuan Zhu ,&nbsp;Chuan Tan ,&nbsp;Xiangwen Gao ,&nbsp;Yuhui Chen","doi":"10.1016/j.jpowsour.2025.236737","DOIUrl":null,"url":null,"abstract":"<div><div>Lithium carbonate (Li<sub>2</sub>CO<sub>3</sub>) and carbon (C) play crucial roles as primary discharge products in lithium-carbon dioxide (Li-CO<sub>2</sub>) batteries. Understanding the reversible formation and oxidation of Li<sub>2</sub>CO<sub>3</sub> and C during charge-discharge cycles is essential for the cyclic performance of Li-CO<sub>2</sub> batteries. However, the role of the decomposition mechanisms of Li<sub>2</sub>CO<sub>3</sub> and the C substrate remains debated, especially under real operating conditions. Here, we find that the discharge product C undergoes oxidation during charging, displaying non-synchronous oxidation compared to Li<sub>2</sub>CO<sub>3</sub>. Oxidation primarily involves C and the electrolyte in the early charging stages, producing CO<sub>2</sub> and CO. In the later stages, the decomposition of Li<sub>2</sub>CO<sub>3</sub> predominates, producing highly reactive CO<sub>3</sub><sup>·-</sup> intermediates. Interestingly, after prolonged ball milling of lithium carbonate and carbon, the C elements can be exchanged through Li<sub>2</sub>CO<sub>3</sub>•C composite materials. By forming Li<sub>2</sub>CO<sub>3</sub>•C composites, C can be oxidized synchronously during the charging. Therefore, designing a catalyst to promote the reversible formation/decomposition of Li<sub>2</sub>CO<sub>3</sub>•C could be vital to achieving reversible cycling in Li-CO<sub>2</sub> batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236737"},"PeriodicalIF":8.1000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Power Sources","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378775325005737","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Lithium carbonate (Li2CO3) and carbon (C) play crucial roles as primary discharge products in lithium-carbon dioxide (Li-CO2) batteries. Understanding the reversible formation and oxidation of Li2CO3 and C during charge-discharge cycles is essential for the cyclic performance of Li-CO2 batteries. However, the role of the decomposition mechanisms of Li2CO3 and the C substrate remains debated, especially under real operating conditions. Here, we find that the discharge product C undergoes oxidation during charging, displaying non-synchronous oxidation compared to Li2CO3. Oxidation primarily involves C and the electrolyte in the early charging stages, producing CO2 and CO. In the later stages, the decomposition of Li2CO3 predominates, producing highly reactive CO3·- intermediates. Interestingly, after prolonged ball milling of lithium carbonate and carbon, the C elements can be exchanged through Li2CO3•C composite materials. By forming Li2CO3•C composites, C can be oxidized synchronously during the charging. Therefore, designing a catalyst to promote the reversible formation/decomposition of Li2CO3•C could be vital to achieving reversible cycling in Li-CO2 batteries.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Power Sources
Journal of Power Sources 工程技术-电化学
CiteScore
16.40
自引率
6.50%
发文量
1249
审稿时长
36 days
期刊介绍: The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells. Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include: • Portable electronics • Electric and Hybrid Electric Vehicles • Uninterruptible Power Supply (UPS) systems • Storage of renewable energy • Satellites and deep space probes • Boats and ships, drones and aircrafts • Wearable energy storage systems
期刊最新文献
Comprehensive analysis of improved LiFePO4 kinetics: Understanding barriers to fast charging Systematic overview of equalization methods for battery energy storage systems Ab initio study on lithium anode interface instability and stabilization of superionic Li3InCl6 and Li6PS5Cl solid electrolytes Unravelling asynchronous oxidation of carbon and lithium carbonate during charging in lithium-carbon dioxide battery Investigating the role of Cu-doping and A-site deficiency in enhancing CO2 electrolysis performance of Ruddlesden-Popper structured fuel electrodes
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1