Carbon-Coated Porous LiTi2(PO4)3 Network with Excellent Electrochemical Property via Replication of Cotton Fabric

A simple morphogenetic route has been developed to obtain free-standing lithium titanium phosphate (LiTi2(PO4)(3), LTP) with physical morphology resemble to a fabric. Commercial cotton textiles are used as templates by loading with aqueous solutions of corresponding precursors and then the cellulosic component is burned off in a furnace held at 600 degrees C. A well-crystallized centimeter-sized lithium titanium phosphate piece can then be synthesized with morphology similar to the fabric and high porosity. After uniformly coating the as-obtained lithium titanium phosphate network with amorphous carbon, the sample shows superior rate capability and cyclability in rechargeable lithium ion batteries. This method can be extendable for other templates and other titanium based electrode materials. (C) 2022 The Electrochemical Society (ECS). Published on behalf of ECS by IOP Publishing Limited.

Automated summary

A simple morphogenetic route is developed for obtaining fabric-like free-standing lithium titanium phosphate (LTP). Commercial cotton textiles are used as templates, and after burning off the cellulosic component, well-crystallized lithium titanium phosphate pieces with high porosity are synthesized. The sample shows superior rate capability and cyclability in rechargeable lithium-ion batteries after coating with amorphous carbon. This method can be extended to other templates and titanium-based electrode materials.