Highly Reversible Chevrel Phase Mo6Se8 Cathode with Low Voltage Hysteresis for Rechargeable Aluminum Batteries

被引：1

作者：

Liu, Meng ^{[1
]}

Lv, Guocheng ^{[1
]}

Liu, Hao ^{[2
]}

Zhang, Jian ^{[3
]}

Liu, Tianming ^{[2
]}

Kong, Lingchang ^{[1
]}

Liao, Libing ^{[1
]}

Guo, Juchen ^{[3
,4
]}

机构：

[1] China Univ Geosci, Minist Educ Geol Carbon Storage & Low Carbon Utili, Beijing Key Lab Mat Utilizat Nonmet Minerals & Sol, Engn Res Ctr,Sch Mat Sci & Technol,Natl Lab Minera, Beijing 100083, Peoples R China

[2] China Univ Geosci Beijing, Sch Sci, Beijing 100083, Peoples R China

[3] Univ Calif Riverside, Mat Sci & Engn Program, Riverside, CA 92521 USA

[4] Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2023年 / 15卷 / 29期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

chevrel phase Mo6Se8; rechargeablealuminum battery; cycle stability; reversibility; voltage hysteresis; ION; INTERCALATION;

D O I：

10.1021/acsami.3c03231

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Rechargeable aluminum (Al) batteries have attracted considerableinterest as potential large-scale energy storage technologies dueto the abundance, high theoretical capacity, and high safety of Al.We report here a highly reversible Al-Mo6Se8 prototype cell with low discharge-charge hysteresis (approximately50 mV under 30 mA g(-1) at 50 & DEG;C), ultra-flatdischarge plateau, and exceptional cycle stability: the reversiblecapacity retaining at a steady 77 mA h g(-1) aftermore than 1800 cycles. The Al intercalation-extraction mechanism isprobed with ex situ and operando XRD techniques, revealing the reversible intercalation reactionfrom Mo6Se8 to Al4/3Mo6Se8. The stable electrochemical performance and unambiguousintercalation mechanism of the Al-Mo6Se8 systemprovide an alternative for beyond-lithium battery technologies.

引用

页码：34698 / 34703

页数：6

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