A swelling-suppressed Si/SiOx nanosphere lithium storage material fabricated by graphene envelopment

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 s...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2016-06, Vol.52 (51), p.8030-8033
Main Authors: Yoo, Hyundong, Park, Eunjun, Kim, Hyekyoung, Bae, Juhye, Chang, Hankwon, Jang, Hee Dong, Kim, Hansu
Format: Article
Language:English
Online Access:Get full text
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Summary: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.
ISSN:1364-548X
DOI:10.1039/c6cc02957d