▎ 摘　　要

Spinel Li4Ti5O12 has been considered as a promising anode material to substitute graphite in lithium ion batteries (LIBs) for large scale electrical energy storage due to its high safety and long cycling stability. However, the drawback of its poor rate performance still hinders it from wide practical application. In this study, with the aim to solve this issue, we have designed a wrinkled graphene layer between the active spinel Li4Ti5O12 and aluminum current collectors by a blade coating method. This introduced wrinkled graphene layer provides larger contact area, lower contact resistance, stronger adhesion and better electrode stability of Li4Ti5O12 electrode. As a result, the rate performance of spinel Li4Ti5O12 has been significantly improved, without compromising its other properties. (C) The Author(s) 2016. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. All rights reserved.