Battery electronification: intracell actuation and thermal management

Ryan S. Longchamps, Shanhai Ge, Zachary J. Trdinich, Jie Liao and Chao-Yang Wang ()
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Ryan S. Longchamps: The Pennsylvania State University
Shanhai Ge: The Pennsylvania State University
Zachary J. Trdinich: The Pennsylvania State University
Jie Liao: The Pennsylvania State University
Chao-Yang Wang: The Pennsylvania State University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Electrochemical batteries – essential to vehicle electrification and renewable energy storage – have ever-present reaction interfaces that require compromise among power, energy, lifetime, and safety. Here we report a chip-in-cell battery by integrating an ultrathin foil heater and a microswitch into the layer-by-layer architecture of a battery cell to harness intracell actuation and mutual thermal management between the heat-generating switch and heat-absorbing battery materials. The result is a two-terminal, drop-in ready battery with no bulky heat sinks or heavy wiring needed for an external high-power switch. We demonstrate rapid self-heating (∼ 60 °C min−1), low energy consumption (0.138% °C−1 of battery energy), and excellent durability (> 2000 cycles) of the greatly simplified chip-in-cell structure. The battery electronification platform unveiled here opens doors to include integrated-circuit chips inside energy storage cells for sensing, control, actuating, and wireless communications such that performance, lifetime, and safety of electrochemical energy storage devices can be internally regulated.

Date: 2024
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DOI: 10.1038/s41467-024-49389-5

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