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Practical Solid-State Batteries Using Pressure

Mechanical stress exploits workaround to electrochemical failure

4 min read
Illustration shows a grey disk  with two metal circles on each end and a thin piece of metal attached to each. Thin grey strips branch out of one of them. Above and below the disk are illustrative red arrows facing the disk.

Researchers solved a problem facing solid-state lithium batteries, which can be shorted out by dendrites, metal filaments that cross the gap between metal electrodes. They found that applying a compression force across a solid electrolyte material [gray disk] caused the dendrite [dark line at left] to stop moving from one electrode toward the other [the round metallic patches at each side] and instead veer harmlessly sideways, toward the direction of the force.

MIT

Solid-state lithium-ion batteries promise to be more safe, lightweight, and compact than their conventional counterparts. However, metal spikes can grow inside them, leading to short-circuit breakdowns. Now a new study finds that applying pressure on these batteries may be a simple way to prevent such failures.

Conventional batteries supply electricity via chemical reactions between two electrodes, the anode and cathode, which typically interact through liquid or gel electrolytes. Solid-state batteries instead employ solid electrolytes such as ceramics.

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IEEE President’s Note: Looking to 2050 and Beyond

The importance of future-proofing IEEE

4 min read
Photo of K. J. Ray Liu
IEEE

What will the future of the world look like? Everything in the world evolves. Therefore, IEEE also must evolve, not only to survive but to thrive.

How will people build communities and engage with one another and with IEEE in the future? How will knowledge be acquired? How will content be curated, shared, and accessed? What issues will influence the development of technical standards? How should IEEE be organized to be most impactful?

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Accelerate the Future of Innovation

Download these free whitepapers to learn more about emerging technologies like 5G, 6G, and quantum computing

1 min read
Keysight
Keysight

Looking for help with technical challenges related to emerging technologies like 5G, 6G, and quantum computing?

Download these three whitepapers to help inspire and accelerate your future innovations:

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