Ontology highlight
ABSTRACT:
SUBMITTER: Li S
PROVIDER: S-EPMC4918313 | biostudies-literature | 2015 Aug
REPOSITORIES: biostudies-literature
Li Sa S Niu Junjie J Zhao Yu Cheng YC So Kang Pyo KP Wang Chao C Wang Chang An CA Li Ju J
Nature communications 20150805
Alloy-type anodes such as silicon and tin are gaining popularity in rechargeable Li-ion batteries, but their rate/cycling capabilities should be improved. Here by making yolk-shell nanocomposite of aluminium core (30 nm in diameter) and TiO2 shell (∼3 nm in thickness), with a tunable interspace, we achieve 10 C charge/discharge rate with reversible capacity exceeding 650 mAh g(-1) after 500 cycles, with a 3 mg cm(-2) loading. At 1 C, the capacity is approximately 1,200 mAh g(-1) after 500 cycles ...[more]