A Nearly Packaging‐Free Design Paradigm for Light, Powerful, and Energy‐Dense Primary Microbatteries (Adv. Mater. 35/2021)

Microbatteries The proliferation and performance of physically small electronics have been severely limited by the microbatteries that power them. In article number 2101760, John B. Cook, Paul V. Braun, James H. Pikul, co-workers report a new design paradigm for primary drastically improves energy density through use thick near-fully dense electrodeposited cathodes multifunctional current collectors eliminate most hermetic packaging.