Spinel Li(sub4)Ti(sub5)O(sub12) 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 Li(sub4)Ti(sub5)O(sub12) electrode. As a result, the rate performance of spinel Li(sub4)Ti(sub5)O(sub12) has been significantly improved, without compromising its other properties.
Reference:
Wen, L., Liang, J., Liu, C-M. et al. 2016. Li4Ti5O12 on graphene for high rate lithium ion batteries. Journal of The Electrochemical Society, vol. 163(14): A2951-A2955. doi: 10.1149/2.0571614jes
Wen, L., Liang, J., Liu, C., Chen, J., & Luo, H. (2016). Li4Ti5O12 on graphene for high rate lithium ion batteries. http://hdl.handle.net/10204/9351
Wen, L, J Liang, C-M Liu, J Chen, and Hongze Luo "Li4Ti5O12 on graphene for high rate lithium ion batteries." (2016) http://hdl.handle.net/10204/9351
Wen L, Liang J, Liu C, Chen J, Luo H. Li4Ti5O12 on graphene for high rate lithium ion batteries. 2016; http://hdl.handle.net/10204/9351.
