Btr has developed uniform, stable and high quality mcmb products by using a series of advanced processing techniques such as unique precursor preparation, mesophase separation and high temperature processing technology etc.In addtion, advanced controls of equipements and systems are used to monitor the process of sphering, polymerization, drying and siveing etc. Long cycling life Excellent rate performance Good electrolyte wetting performance Low expansion For satisfying customers' individuation requirement, we promise that customers can join us to r&d the product and provide the unique product.