Performance Modeling and Design of High Energy Density Microbatteries

This work reports the design and simulated performance of high energy density lithium metal primary microbatteries whose 2016 Wh/L and 605 Wh/kg energy densities are 3X greater than the best microbatteries. The simulations match experimental data and give insight into the excellent energy and power density performance. The high energy density is the result of the ultra-thick and dense cathode which has high lithium ion diffusivity and electronic conductivity. These results show great promise towards realizing the next generation of high performance microbatteries.