期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 23, 页码 19739-19745出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b05292
关键词
mesoporous materials; manganese phosphonates; electrodes; lithium ion batteries; surfactants
资金
- Deanship of Scientific Research (DSR), King Abdulaziz University [KEP-1-130-39]
- Australian Research Council (ARC) [FT150100479]
- JSPS KAKENHI [17H05393, 17K19044]
- Qingdao University of Science and Technology
- Suzuken Memorial Foundation
Mesoporous materials can serve as well-performed electrode candidates for lithium-ion batteries (LIBs). Mesoporous manganese phosphonate (MnP) nanorods are composed of an interconnected network of pores that have high infiltration capacity for electrolyte and less tortuous transport pathways for lithium/electron charge carriers. The mesoporous architecture should also help alleviate stress from volume variation upon lithium intercalation/deintercalation cycles. We used MnP as an LIB anode and observed an initial reversible capacity of 420 mA h g(-1) and a modest Coulombic efficiency of 68.7% at a relatively high current density of 144 mA g(-1). The reversible capacity stabilizes at 253 mA h g(-1) after 100 repetitive cycles, while most of the time, the Coulombic efficiency remains around 100%. The results show that, as a prospective LIB anode, the mesoporous MnP can achieve desirable capacity with decent durability and rate capability.
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