Covalent-Organic Framework with Superior Proton Conduction for Solid-State Proton Battery Application

被引：0

作者：

Ren, Xing-Yu ^{[1
,2
]}

Song, Jing-Bo ^{[1
,2
]}

Zhang, Guo-Qin ^{[1
,2
]}

Kong, Ya-Ru ^{[1
,2
]}

Zhang, Han ^{[1
,2
]}

Qiao, Qiao ^{[1
,2
]}

Luo, Hong-Bin ^{[1
,2
]}

Zhang, Jin ^{[1
,2
]}

Liu, Jian-Lan ^{[1
,2
]}

Ren, Xiao-Ming ^{[1
,2
,3
,4
]}

机构：

[1] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Nanjing 211816, Peoples R China

[2] Nanjing Tech Univ, Coll Chem & Mol Engn, Nanjing 211816, Peoples R China

[3] Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 211816, Peoples R China

[4] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210023, Peoples R China

来源：

ACS MATERIALS LETTERS | 2024年 / 6卷 / 09期

基金：

中国国家自然科学基金;

关键词：

ACID;

D O I：

10.1021/acsmaterialslett.4c01140

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solid-state proton batteries hold great promise as a technology for portable energy storage. However, their development is impeded by the scarcity of suitable solid proton electrolytes. In this study, we present the first demonstration of covalent-organic frameworks (COFs) exploited as solid proton electrolytes with promising application in solid-state proton batteries. Specifically, the methanesulfonic acid (MeSA) molecules were confined and stabilized within the channels of a polybenzimidazole COF (PBI-COF) to yield the solid proton electrolyte, termed MeSA@PBI-COF. MeSA@PBI-COF exhibits a wide electrochemical stability window and superior proton conduction (>10(-2 )S cm(-1)) under ambient conditions, along with good long-term stability. Furthermore, MeSA@PBI-COF was employed as the solid proton electrolyte to assemble solid-state proton batteries, which demonstrate excellent cycle stability with a capacity retention of 74.2% after 8000 cycles at 1.0 A g(-1) and deliver a high specific capacity of 49.8 mAh g(-1) at 1.0 A g(-1), outperforming the reported solid-state proton batteries.

引用

页码：4036 / 4041

页数：6