文献类型：期刊文献

英文题名：An aqueous aluminum-ion electrochromic full battery with water-in-salt electrolyte for high-energy density

作者：Tong, Zhongqiu Lian, Ruqian Yang, Rui Kang, Tianxing Feng, Jianrui Shen, Dong Wu, Yan Cui, Xiao Wang, Hui Tang, Yongbing Lee, Chun-Sing

第一作者：童仲秋;Tong, Zhongqiu

通信作者：Lee, CS[1]

机构：[1]City Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China;[2]City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong, Peoples R China;[3]Guizhou Inst Technol, Coll Mat & Met Engn, Guiyang, Peoples R China;[4]Hebei Univ, Sch Phys Sci & Technol, Baoding, Peoples R China;[5]Nankai Univ, Coll Chem, Minist Educ, Tianjin, Peoples R China;[6]Nankai Univ, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin, Peoples R China;[7]Shenzhen Inst Adv Technol, Chinese Acad Sci, Shenzhen 518055, Peoples R China

第一机构：City Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China

通信机构：corresponding author), City Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China.

年份：2022

卷号：44

起止页码：497-507

外文期刊名：ENERGY STORAGE MATERIALS

收录：;EI(收录号：20214611179839);Scopus(收录号：2-s2.0-85119034566);WOS:【SCI-EXPANDED(收录号:WOS:000744237700008)】；

基金：This work was supported by the NSFC/RGC Joint Research Scheme 2020/21 (Project No: N_CityU104/20) and the Science and Technology Foundation of Guizhou Province of China (No. qianke he ji chu [2017] 1065).

语种：英文

外文关键词：Aqueous aluminum-ion battery; Full battery; Water-in-salt electrolyte; Energy storage; Smart window

摘要：Electrochromic batteries (EBs) have been developed as a technical breakthrough to solve the energy issues of storage and saving. Multivalent-ions (Zn2+, Mg2+ and Al3+) have recently demonstrated attractive properties for EBs due to their multiple-electron redox nature. However, still now, reported multivalent-ion EBs are typically assembled with a small-area metallic anode and a large-area electrochromic cathode. Non-uniformity of coloration and unstable metal plating/stripping hinder the developments of these devices. Additionally, insufficient energy/power density of EBs is a huge technical challenge needed to be overcome. In this work, we demonstrated a new aqueous aluminum-ion electrochromic full battery (AIEFB) to overcome the challenges. Systematic studies of density functional theory calculation, molecular dynamics simulation, electrochemical analysis, and mechanical measurements were conducted to optimize electrode materials and electrolyte. A water-in-salt (WIS) Al(OTF)(3) electrolyte and a new electrochromic material couple of anodic amorphous WO3 (a-WO3) and cathodic indium hexacyanoferrate (InHCF) were exploited for AIEFB. The AIEFB demonstrated advantages of a high average discharge potential (1.06 V), an attractive energy density of 62.8 mWh m(-2) at a power density of 2433.8 mW m(-2), a high transmittance modulation of 63% at 600 nm, and a distinct transparent-to-deep blue coloration during the Al-ion shuffling processes.