# East Asia Brief — Prime Planet Energy & Solutions

2 briefings mentioning Prime Planet Energy & Solutions.

- [Japanese automakers standardize prismatic battery cold tests as EV timelines advance](https://eastasiabrief.com/batteries-ev/japanese-automakers-standardize-prismatic-battery-cold-tests-ev-timeline-75) — Shared public labs and automaker test benches expand sub-zero cell protocols to resolve winter range loss ahead of 2027 regional electric vehicle deployments. *(August 28, 2026; Batteries & EV · Japan · Toyota Motor, Honda Motor, Panasonic Holdings, Prime Planet Energy & Solutions)*
- [Japan Separator Makers Accelerate Ceramic-Coated and Solid-State Film Expansion](https://eastasiabrief.com/batteries-ev/japan-separator-makers-accelerate-ceramic-coated-solid-state-film-46) — Asahi Kasei and Toray are retooling production lines toward high-heat ceramic films and solid-electrolyte substrates to secure margins against standard… *(August 28, 2026; Batteries & EV · Japan · Asahi Kasei Corporation, Toray Industries)*

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Publisher: East Asia Brief — https://eastasiabrief.com/