# Solid-state battery development for extreme temperatures

> Developing situation record from CLSTR: https://clstr.news/situations/solid-state-battery-development-for-extreme-temperatures
> Updated: 2026-10-15T03:26:31.000Z. Sources: 4. Developments: 2.

Research and development efforts are advancing in solid-state battery technology designed to function in extreme cold. 

In China, researchers at Tsinghua University developed an experimental battery using polyaniline to facilitate lithium-ion movement at temperatures as low as −40°C. Laboratory tests showed the material could operate between −40°C and 45°C, with some cells achieving over 13,000 cycles.

In the United States, NASA’s SPEARS project is developing solid-state batteries for lunar exploration. These prototypes, utilizing ceramic or polymer electrolytes, have demonstrated successful operation at -80°C and showed no physical damage at -170°C. This technology aims to support future lunar missions, such as the Artemis program, by providing power for rovers and scientific instruments in environments where liquid-based batteries would freeze.

## Timeline

### 2026-10-15: NASA develops solid-state batteries for lunar exploration

NASA is developing SPEARS solid-state batteries designed to survive extreme lunar temperatures, successfully testing prototypes that resist damage at -170 degrees Celsius for future moon missions.

2 sources. https://clstr.news/cluster/nasa-develops-solid-state-batteries-for-lunar-exploration

### 2026-10-04: Tsinghua University researchers develop solid-state battery for −40°C

Tsinghua University researchers developed a solid-state battery prototype that functions at −40°C using polyaniline to facilitate lithium-ion movement in extreme cold.

2 sources. https://clstr.news/cluster/tsinghua-university-researchers-develop-solid-state-battery-for-40c

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Cite as: Solid-state battery development for extreme temperatures. CLSTR, https://clstr.news/situations/solid-state-battery-development-for-extreme-temperatures