Journal
NANO-MICRO LETTERS
Volume 10, Issue 3, Pages -Publisher
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-018-0201-9
Keywords
Bi2Se3; Sodium-ion battery; High-energy ball milling; Sodium storage mechanism
Funding
- TcSUH [E-0001]
- National Science Foundation [DMR-1410936]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1410936] Funding Source: National Science Foundation
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Bi2Se3 was studied as a novel sodium-ion battery anode material because of its high theoretical capacity and high intrinsic conductivity. Integrated with carbon, Bi2Se3/C composite shows excellent cyclic performance and rate capability. For instance, the Bi2Se3/C anode delivers an initial capacity of 527 mAh g(-1) at 0.1 A g(-1) and maintains 89% of this capacity over 100 cycles. The phase change and sodium storage mechanism are also carefully investigated.
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