LiCoPO4 Based High Energy Li-Ion Cathodes

There is an ongoing need for higher energy batteries that operate with the highest safety margin. LiCoPO4 is a 4.8 V cathode material with potentially better abuse tolerance and energy density than the current state of art Li-ion battery chemistries. The intense development of high voltage electrolytes1 and strategies that improve the cycle life2, discharge capacity2 and rate capability3have increased the interest in this material. This paper will review our recent efforts on LiCoPO4 electrode development for improving the energy and abuse tolerance of Li-ion batteries. We will discuss synthesis methods, transport measurements,3 substitutional chemistry of LiCoPO4 and performance enhancements that result from reformulating the electrolyte. References A. V. Cresce, A.V and K. Xu, J. Electrochem. Soc. 158, A337, 2011. J. L. Allen, T. R. Jow, J. Wolfenstine, J. Power Sources 2011, 196, 8656. J.L. Allen, T. Thompson, J. Sakamoto, C.R. Becker, T.R. Jow and J. Wolfenstine, J. Power Sources 254, 204 (2014).