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arXiv · 1511.03949

Thin Flexible Lithium Ion Battery Featuring Graphite Paper Based Current Collectors with Enhanced Conductivity

Hang Qu·Jingshan Hou·Yufeng Tang·Oleg Semenikihin·Maksim Skorobogatiy
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Abstract

A flexible, light weight and high conductivity current collector is the key element that enables fabrication of high performance flexible lithium ion battery. Here we report a thin, light weight and flexible lithium ion battery that uses graphite paper enhanced with a nano-sized metallic layers as the current collector, LiFePO4 and Li4Ti5O12 as the cathode and anode materials, and PE membrane soaked in LiPF6 as a separator. Using thin and flexible graphite paper as a substrate for the current collector instead of a rigid and heavy metal foil enables us to demonstrate a very thin Lithium-Ion Battery into ultra-thin (total thickness including encapsulation layers of less than 250 μm) that is also light weight and highly flexible.

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Hang Qu, Jingshan Hou, Yufeng Tang, Oleg Semenikihin, Maksim Skorobogatiy. 2015-11-12. Thin Flexible Lithium Ion Battery Featuring Graphite Paper Based Current Collectors with Enhanced Conductivity. https://arxiv.org/abs/1511.03949

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