Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability

Abstract Rate capability as well as power performance of lithium ion batteries (LiBs) is becoming more and more important, especially as the application targets of LiBs move from mobile devices to transportation, such as EVs and HEVs. In this research, we report porous graphene sponge additives for...

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Autor principal:	Qian Cheng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/088f545795d54ae8a6722105fdf4a38c
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spelling	oai:doaj.org-article:088f545795d54ae8a6722105fdf4a38c2021-12-02T15:06:01ZPorous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability10.1038/s41598-017-01025-72045-2322https://doaj.org/article/088f545795d54ae8a6722105fdf4a38c2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01025-7https://doaj.org/toc/2045-2322Abstract Rate capability as well as power performance of lithium ion batteries (LiBs) is becoming more and more important, especially as the application targets of LiBs move from mobile devices to transportation, such as EVs and HEVs. In this research, we report porous graphene sponge additives for both anode and cathode materials for better rate performance. The charge capacity retention improved from 56% to 77% at 6C and from 7% to 45% at 10C with 0.5 wt% added to the anode, while the discharge capacity retention at the 6C rate improved from 43% to 76% and the 10C rate discharge improved from 16% to 40% with the same amount of MG added to the cathode. The cyclability at high rate was also improved with the MG additive. Moreover, preparation of the MG was facile, cost-effective, and compatible with commercially available active materials. These results demonstrate the suitability of MG for use with LiB additives to ensure better rate capability and high rate cyclability.Qian ChengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qian Cheng Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability
description	Abstract Rate capability as well as power performance of lithium ion batteries (LiBs) is becoming more and more important, especially as the application targets of LiBs move from mobile devices to transportation, such as EVs and HEVs. In this research, we report porous graphene sponge additives for both anode and cathode materials for better rate performance. The charge capacity retention improved from 56% to 77% at 6C and from 7% to 45% at 10C with 0.5 wt% added to the anode, while the discharge capacity retention at the 6C rate improved from 43% to 76% and the 10C rate discharge improved from 16% to 40% with the same amount of MG added to the cathode. The cyclability at high rate was also improved with the MG additive. Moreover, preparation of the MG was facile, cost-effective, and compatible with commercially available active materials. These results demonstrate the suitability of MG for use with LiB additives to ensure better rate capability and high rate cyclability.
format	article
author	Qian Cheng
author_facet	Qian Cheng
author_sort	Qian Cheng
title	Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability
title_short	Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability
title_full	Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability
title_fullStr	Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability
title_full_unstemmed	Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability
title_sort	porous graphene sponge additives for lithium ion batteries with excellent rate capability
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/088f545795d54ae8a6722105fdf4a38c
work_keys_str_mv	AT qiancheng porousgraphenespongeadditivesforlithiumionbatterieswithexcellentratecapability
_version_	1718388622795735040

Porous Graphene Sponge Additives for Lithium Ion Batteries with Excellent Rate Capability

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