| Autor: |
Chu Liang, Zhangze Ye, Yaxiong Yang, Huilong Jing, Haihuang Wu, Yanxia Liu, Xiaoyu Zhang, Zhihe Liu, Hongge Pan |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Heliyon, Vol 9, Iss 11, Pp e21765- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2405-8440 |
| DOI: |
10.1016/j.heliyon.2023.e21765 |
| Popis: |
Metal hydrides have been demonstrated as one of the promising high-capacity anode materials for Li-ion batteries. Herein, we report the electrochemical properties and lithium storage mechanism of a Li-rich complex metal hydride (Li3AlH6). Li3AlH6 exhibits a lithiation capacity of ∼1729 mAh/g with a plateau potential of ∼0.33 V vs. Li+/Li at the first discharge cycle. Experimental results demonstrate that Li3AlH6 is converted into LiH and LiAl in the initial electrochemical lithiation process. In addition, Li3AlH6 also possesses a good cycling stability that 71 % of the second discharge capacity is retained after 20 cycles. More importantly, the cycling performance of Li3AlH6 can be improved to 100 cycles via adjusting electrolyte composition. This study provides a new approach for developing the lithium storage properties of anode materials for Li-ion batteries. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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