| Literature DB >> 26680110 |
Kangning Zhao1, Lei Zhang1, Rui Xia1, Yifan Dong1, Wangwang Xu2, Chaojiang Niu1, Liang He1, Mengyu Yan1, Longbin Qu1, Liqiang Mai1.
Abstract
Tin-based electrode s offer high theoretical capacities in lithium ion batteries, but further commercialization is strongly hindered by the poor cycling stability. An in situ reduction method is developed to synthesize SnO2 quantum dots@graphene oxide. This approach is achieved by the oxidation of Sn(2+) and the reduction of the graphene oxide. At 2 A g(-1), a capacity retention of 86% is obtained even after 2000 cycles.Entities:
Keywords: Li-ion batteries; graphene; high-rate cyclability; quantum dots; tin dioxide
Year: 2015 PMID: 26680110 DOI: 10.1002/smll.201502183
Source DB: PubMed Journal: Small ISSN: 1613-6810 Impact factor: 13.281