In situ synthesis of GeO2/reduced graphene oxide composite on Ni foam substrate as a binder-free anode for high-capacity lithium-ion batteries. Issue 4 (4th December 2014)

• Record Type: Journal Article
• Authors: Qiu, Heyuan; Zeng, Lingxing; Lan, Tongbin; Ding, Xiaokun; Wei, Mingdeng
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 4(2015)
• Page Start: 1619
• Page End: 1623
• Publication Date: 2014-12-04
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c4ta05212a
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : The GeO2 /RGO electrode is successfully fabricated via a facile dip-coating route cooperated with in situ hydrolysis of GeCl4 and used directly as a binder-free anode for LIBs. This material exhibited high reversible capacity, good cycling performance and excellent rate capability. Abstract : A GeO2 /RGO composite was successfully fabricated via alternating deposition of graphene oxide (GO) and GeO2 on the surface of a Ni foam substrate using a facile dip-coating method cooperated with in situ hydrolysis of GeCl4 . This material was directly used as a binder-free anode for LIBs and exhibited high reversible capacity (1716 mA h g −1 at 0.2 A g −1, 702 mA h g −1 at 16 A g −1 ), good cycling performance (1159 mA h g −1 at 1 A g −1 after 500 cycles) and excellent rate capability. In addition, a reversible capacity as high as 621 mA h g −1 can be retained when cycled to 500 cycles at a rate as high as 8 A g −1 .