|本期目录/Table of Contents|

[1]蔡志鹏,刘爱萍,叶方敏.CNT@PP膜的制备及其在锂金属电池中的应用[J].浙江理工大学学报,2023,49-50(自科一):17-23.
 CAI Zhipeng,LIU Aiping,YE Fangmin.Preparation of CNT@PP films and their application in lithium metal batteries[J].Journal of Zhejiang Sci-Tech University,2023,49-50(自科一):17-23.
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CNT@PP膜的制备及其在锂金属电池中的应用()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第49-50卷
期数:
2023年自科第一期
页码:
17-23
栏目:
出版日期:
2023-03-10

文章信息/Info

Title:
Preparation of CNT@PP films and their application in lithium metal batteries
文章编号:
1673-3851 ( 2023 ) 01-0017-07
作者:
蔡志鹏刘爱萍叶方敏
浙江理工大学理学院,杭州 310018
Author(s):
CAI Zhipeng LIU Aiping YE Fangmin
School of Science, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
锂金属电池界面聚合物复合膜高倍率静电作用
分类号:
TM912
文献标志码:
A
摘要:
        为解决锂金属作为负极时锂金属/电解液界面的不稳定性和锂金属表面可能出现的锂枝晶生长问题,利用聚乙烯亚胺(PEI)与聚丙烯酸(PAA)的静电吸引作用包覆碳纳米管(CNT),通过真空抽滤的方式制备了PEI与PAA包覆CNT(CNT@PP)膜,对其微观形貌和分子结构进行表征,并将CNT@PP膜作为锂金属负极的保护层组装为电池,对电池的循环稳定性能、倍率性能和循环性能进行测试。结果表明:PEI和PAA均匀附着在碳纳米管上,并形成纳米级孔道结构;PEI与PAA具有强静电作用;在1.0 mA/cm2的电流密度下,Li‖Li对称电池能稳定循环250 h,表明CNT@PP膜有利于锂的均匀沉积和界面稳定;在全电池恒流充放电中,CNT@PP膜能明显提高全电池的倍率性能,2.0 C下比容量达91 mAh/g,而无保护电池的比容量仅为22 mAh/g;在0.5 C长循环测试中,CNT@PP膜保护的电池可稳定循环200圈,并有75.21%的容量保持率。该研究表明,CNT@PP膜可以有效地保护锂金属负极,是改善锂金属电池的可行策略。

参考文献/References:

[1]Gu X X, Tang T Y, Liu X T, et al. Rechargeable metal batteries based on selenium cathodes: progress, challenges and perspectives[J]. Journal of Materials Chemistry A, 2019, 7(19): 11566-11583.

[2]Yuan H, Peng H J, Huang J Q, et al. Sulfur redox reactions at working interfaces in lithium-sulfur batteries: a perspective[J]. Advanced Materials Interfaces, 2019, 6(4): 1802046.
[3]Ko J, Yoon Y S. Recent progress in LiF materials for safe lithium metal anode of rechargeable batteries: Is LiF the key to commercializing Li metal batteries?[J]. Ceramics International, 2019, 45(1): 30-49.
[4]Xia S X, Wu X S, Zhang Z C, et al. Practical challenges and future perspectives of all-solid-state lithium-metal batteries[J]. Chem, 2019, 5(4): 753-785
[5]Cha E, Kim D K, Choi W. Advances of 2D MoS2 for high-energy lithium metal batteries[J]. Frontiers in Energy Research, 2021, 9: 645403.
[6]Wang Q Y, Liu B, Shen Y H, et al. Confronting the challenges in lithium anodes for lithium metal batteries[J]. Advanced Science, 2021, 8(17): 2101111.
[7]Wang X E, Kerr R, Chen F F, et al. Toward high-energy-density lithium metal batteries: opportunities and challenges for solid organic electrolytes[J]. Advanced Materials, 2020, 32(18): 1905219.
[8]Lewis J A, Cortes F J Q, Boebinger M G, et al. Interphase morphology between a solid-state electrolyte and lithium controls cell failure[J]. ACS Energy Letters, 2019, 4(2): 591-599.
[9]Touja J, Louvain N, Stievano L, et al. An overview on protecting metal anodes with alloy-type coating[J]. Batteries & Supercaps, 2021, 4(8): 1252-1266.
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备注/Memo

备注/Memo:
收稿日期: 2022-03-17
网络出版日期:2022-06-02
基金项目: 浙江省杰出青年科学基金项目(LR19E020004);浙江理工大学科研启动项目(18062299-Y)
作者简介: 蔡志鹏(1996-),男,安徽合肥人,硕士研究生,主要从事锂离子电池方面的研究。
通信作者: 叶方敏,E-mail:fmye2018@zstu.edu.cn
更新日期/Last Update: 2023-03-31