Purdue University Creates Safer Solid-State Lithium-Ion Batteries

Mar 13, 2023 08:34 AM ET
  • The new batteries are created from new composite products.
  • The new battery shows exceptional thermal stability up to around 330 degrees Celsius.

Indiana-based Purdue University has stated that its engineers are making one of the most-used power sources safer and also more reliable. High-voltage, solid-state lithium-ion batteries are the go-to power source for premium technologies like electric as well as hybrid vehicles, wearable tools, pacemakers, radio-frequency recognition systems and even more. Among their most dramatic downsides is that they commonly blow up when damaged.

A group led by Vilas Pol, a Purdue professor in the Davidson School of Chemical Engineering of Purdue University, has actually developed a new composite product that is safer to make use of in solid-state lithium-ion batteries than traditional solid polymer electrolyte, or SPE, technologies.

Purdue University claimed that the new as well as patent-pending composite product surpasses typical SPE materials in numerous ways. First, it has a wide voltage window of around 4.8 volts. The optimized ionic conductivity is of around 2.4 * 10 ^ 4 microsiemens. The new battery reveals outstanding thermal stability as much as around 330 degrees Celsius.

Purdue University said that the new battery exhibits stability to cell damages, causing a substantial rise in safety. Pol claimed typical SPE materials have other drawbacks.

" They have bad thermal stability, which can create battery thermal runaway as well as bring about disastrous shooting," Vilas Pol claimed. "Their ionic conductivity is limited to low temperature levels, which can decrease power effectiveness and lifetime. And low-energy-density batteries can cause quick energy depletion as well as brief operating times of devices, considering the limited space for a battery in electronic devices or electrical vehicles."

The professor added, "We have actually further created advanced electrolytes with fire-retardant molecules as a quasi-solid-state battery, improving the lithium-ion battery safety."

The Purdue University group has continued study to make the material even safer using electrolyte composite optimization, battery overcharging, as well as nail infiltration as well as thermal misuse testing.

The Purdue University research study has actually been released in Chemical Engineering Journal. The University disclosed the advancement to the Purdue Study Structure Office of Technology Commercialization, which has applied for a license on the copyright. It additionally wants market companions to work together to further establish the battery innovation.

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