# Ilika reports positive defence safety test results for solid-state batteries

- Link: https://www.directorstalkinterviews.com/ilika-reports-positive-defence-safety-test-results-for-solid-state-batteries/4121245146
- Published: 2026-03-18T07:07:15+00:00
- Author: Amilia Stone

**[Ilika plc](https://www.directorstalkinterviews.com/company/ilika-plc/ika.l)**(
[LON:IKA](https://www.directorstalkinterviews.com/company/ilika-plc/ika.l)), the
UK pioneer in solid state battery technology, has announced it has received positive
feedback from a UK defence agency on safety tests of its batteries under battlefield
conditions, highlighting the potential of the technology for use in high-risk, mission-
critical environments where safety is paramount.

In December 2025, Ilika delivered prototypes to customers across multiple industries,
including an agency which advises the UK Ministry of Defence. The prototypes were
subjected to firing range tests, which showed that:

·    A Goliath 10Ah cell could survive a single shot before a thermal event was 
triggered by a second one

·    Low state-of-charge 10Ah Goliath cells did not show a thermal event

·    A Goliath cell showed a delayed reaction before entering thermal runaway

·    A Goliath cell reached a lower thermal runaway temperature than conventional
Nickel Cobalt Aluminium lithium-ion cells

·    Despite Goliath 10Ah cells storing 3x the energy of conventional NCA cells 
being tested under equivalent conditions in the same trial, the Goliath cells had
a similar thermal response

This independent validation follows the delivery of Goliath prototypes to multiple
customers in December 2025 and supports Ilika’s ongoing engagement with partners
evaluating safety‑critical applications. Under certain abuse conditions, conventional
lithium-ion batteries can enter a state of thermal runaway, which is a chain reaction
in which the battery temperature rises uncontrollably, leading to a fire or explosion.

> **A power sources subject matter expert for the UK defence agency said:** “_Ilika’s
> Goliath cells were screened alongside an extensive range of other battery technologies(
> both experimental and mature) as part of our work to understand the risk associated
> with increased electrification, and to understand which battery technologies can
> offer improved safety over conventional lithium-ion. We would be very interested
> in evaluating Ilika’s technology further in applications optimised for deployment
> in defence environments.”_

> **Graeme Purdy, CEO of Ilika, said:** “_Events in recent months have highlighted
> that we live in times with a heightened security risk. Mobile energy storage is
> important for many modern defence applications, including drones, and we are working
> with experts in the field to identify the most appropriate avenues for commercialising
> Goliath in this sector, alongside other applications where enhanced safety provides
> a clear competitive advantage.”_

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