High power primary lithium ion microbatteries

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Pikul, James H.^1 ; Braun, Paul V.^1,2 ; King, William P.^1,2

Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green st., Urbana, IL 61801, United States^1

Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W. Green st., Urbana, IL 61801, United States^2

关键词: Average capacities;    Critical component;    Discharge power;    High power density;    Lithium anode;    Manganese oxide cathode;    Power densities;    Primary lithiums;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012087/pdf
DOI  :  10.1088/1742-6596/476/1/012087

来源: IOP

【 摘 要 】

Microbatteries are a critical component for powering autonomous and remote microdevices, but current microbatteries lack the power density and capacity required for high performance use. This paper reports primary microbatteries with high power density and capacity. The microbatteries are based on interdigitated three-dimensional nanoporous bicontinuous electrodes, which enable short ion diffusion lengths and high discharge power. The microbatteries utilize a high capacity manganese oxide cathode and lithium anode to achieve a capacity of up to 29.5 μAh/cm2μm, which is 10X the average capacity of the highest capacity rechargeable microbatteries reported.