Battery control systems

This invention describes a battery system designed to handle the significant swelling that occurs in certain advanced battery types, particularly those using lithium metal and solid-state electrolytes. It works by incorporating special compressible regions within the battery structure, allowing the battery to expand by at least 10% during charging without damage. The specific design includes a boost pack and a primary energy pack, with the primary pack containing unit cells that have a lithium metal negative electrode and a solid-state electrolyte.

Why it matters: The fundamental challenge of volumetric expansion in high-energy-density lithium metal and solid-state batteries, crucial for EV applications, has remained a significant hurdle. Advances in solid-state electrolyte manufacturing or materials science since 2021 might now offer new avenues for implementing or improving the compressible structures needed.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedLithium metal, solid-state electrolyte, compressible battery design

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