Bark-Derived Oxygen-Doped Porous Hard Carbon Anodes for Potassium-Ion Batteries

IF 3.6 4区 工程技术 Q3 ENERGY & FUELS
Can Li, Yongfeng Zhu, Shengdi Li, Xiaowen Liu, Qingang Xiong
{"title":"Bark-Derived Oxygen-Doped Porous Hard Carbon Anodes for Potassium-Ion Batteries","authors":"Can Li,&nbsp;Yongfeng Zhu,&nbsp;Shengdi Li,&nbsp;Xiaowen Liu,&nbsp;Qingang Xiong","doi":"10.1002/ente.202402287","DOIUrl":null,"url":null,"abstract":"<p>Oxygen content and specific surface area are key factors affecting the electrochemical performance of biomass-derived hard carbon anodes for potassium-ion batteries (PIBs). Increasing oxygen content enhances potassium storage, improving cycle stability and rate performance. Furthermore, optimizing porous structures boosts specific surface area, facilitating potassium ion diffusion and increasing capacity. Herein, a cost-effective and environmentally friendly strategy is proposed, using bark as a precursor, oxygen as the oxidant, and pluronic P123 as the template agent. Oxygen-doped porous hard carbon anodes are synthesized via pre-oxidation and hydrothermal processing. These anodes exhibit large interlayer spacing, high specific surface area, and significant oxygen content, resulting in excellent electrochemical stability and capacity. The anodes maintain a high specific discharge capacity of 230.2 mAh g<sup>−1</sup> after 200 cycles at 0.1 A g<sup>−1</sup>, with minimal capacity loss. After 3000 cycles at 1 A g<sup>−1</sup>, the capacity retention is 80%. This work demonstrates an effective method for utilizing bark to produce high-performance hard carbon anodes for PIBs, advancing the development of bark-derived materials for energy storage.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy technology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ente.202402287","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0

Abstract

Oxygen content and specific surface area are key factors affecting the electrochemical performance of biomass-derived hard carbon anodes for potassium-ion batteries (PIBs). Increasing oxygen content enhances potassium storage, improving cycle stability and rate performance. Furthermore, optimizing porous structures boosts specific surface area, facilitating potassium ion diffusion and increasing capacity. Herein, a cost-effective and environmentally friendly strategy is proposed, using bark as a precursor, oxygen as the oxidant, and pluronic P123 as the template agent. Oxygen-doped porous hard carbon anodes are synthesized via pre-oxidation and hydrothermal processing. These anodes exhibit large interlayer spacing, high specific surface area, and significant oxygen content, resulting in excellent electrochemical stability and capacity. The anodes maintain a high specific discharge capacity of 230.2 mAh g−1 after 200 cycles at 0.1 A g−1, with minimal capacity loss. After 3000 cycles at 1 A g−1, the capacity retention is 80%. This work demonstrates an effective method for utilizing bark to produce high-performance hard carbon anodes for PIBs, advancing the development of bark-derived materials for energy storage.

Abstract Image

钾离子电池用树皮衍生的掺氧多孔硬碳阳极
氧含量和比表面积是影响钾离子电池(PIBs)硬质碳阳极电化学性能的关键因素。增加氧含量可以提高钾的储存,改善循环稳定性和速率性能。此外,优化多孔结构可以提高比表面积,促进钾离子扩散,提高容量。本文提出了以树皮为前驱体,氧为氧化剂,pluronic P123为模板剂的经济环保策略。采用预氧化和水热法制备了含氧多孔硬碳阳极。这些阳极具有大的层间距,高比表面积和显著的氧含量,从而产生优异的电化学稳定性和容量。在0.1 a g−1下循环200次后,阳极保持230.2 mAh g−1的高比放电容量,容量损失最小。在1a1g−1下循环3000次后,容量保持率为80%。这项工作证明了利用树皮生产高性能PIBs硬碳阳极的有效方法,推动了树皮衍生储能材料的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Energy technology
Energy technology ENERGY & FUELS-
CiteScore
7.00
自引率
5.30%
发文量
0
审稿时长
1.3 months
期刊介绍: Energy Technology provides a forum for researchers and engineers from all relevant disciplines concerned with the generation, conversion, storage, and distribution of energy. This new journal shall publish articles covering all technical aspects of energy process engineering from different perspectives, e.g., new concepts of energy generation and conversion; design, operation, control, and optimization of processes for energy generation (e.g., carbon capture) and conversion of energy carriers; improvement of existing processes; combination of single components to systems for energy generation; design of systems for energy storage; production processes of fuels, e.g., hydrogen, electricity, petroleum, biobased fuels; concepts and design of devices for energy distribution.
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信