Abstract
A porous LiNi0.5Mn1.5O4 spinel with significantly improved rate capability has been synthesized by a facile template method using pine wood as a bio-template. The templated LiNi0.5Mn1.5O4 (T-LNMO) has disordered Fd-3m phase, and consists of sub-micrometric and highly dispersed particles. It exhibits significantly improved rate capability. The capacity of T-LNMO at 10C is 97mAh/g and retains 90% after 100 cycles. Contrastively, the non-templated LiNi0.5Mn1.5O4 (NT-LNMO) cannot deliver any capacity at 10C, and at 5C rate after 100 cycles, the capacity retention is only 22%.
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