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A swelling-suppressed Si/SiOx nanosphere lithium storage material fabricated by graphene envelopment
Hyundong Yoo1, Eunjun Park, Hyekyoung Kim
1Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea. khansu@hanyang.ac.kr.
Chemical Communications (Cambridge, England)
|June 7, 2016
Abstract:
A swelling-suppressed, Si nanocrystals-embedded SiOx nanospheres lithium storage material was prepared by graphene envelopment. The free void spaces formed between the graphene envelope and Si/SiOx nanospheres effectively accommodated the volume changes of Si/SiOx nanospheres during cycling, which significantly suppresses the swelling behavior and improves the capacity retention up to 200 cycles.
