あらゆる気候に対応するバッテリー設計が安定性の鍵に(Proposed all-climate battery design could unlock stability in extreme temps)

2025-11-05 ペンシルベニア州立大学(PennState)

Web要約 の発言:
ペンシルベニア州立大学の研究チームは、極端な温度環境でも安定稼働できる新型リチウムイオン電池「オールクライメートバッテリー(ACB)」を提案した。従来の電池は低温で出力低下し、高温では安全性が損なわれるが、ACBは内部に10µm厚のニッケル箔ヒーターを内蔵し、自己加熱で低温時の性能を維持しつつ、高温対応材料で構成することで−50〜75℃の広温度域で安定稼働を実現する。外部冷却装置が不要となり、コスト・エネルギー消費・メンテナンスを大幅に削減できる。発電所やデータセンター、EVなどへの応用が期待される。研究成果はJoule誌に掲載。

あらゆる気候に対応するバッテリー設計が安定性の鍵に(Proposed all-climate battery design could unlock stability in extreme temps)
A new battery design, proposed by researchers at Penn State, could allow lithium-ion batteries to perform well in any climate by using optimized materials and an internal heating system. Credit: Illustrated by Wen-Ke Zhang/Provided by Chao-Yang Wang. All Rights Reserved.

<関連情報>

全気候対応型バッテリーエネルギー貯蔵 All-climate battery energy storage

Chao-Yang Wang ∙ Kaiqiang Qin ∙ Nitesh Gupta
Joule  Published:November 5, 2025
DOI:https://doi.org/10.1016/j.joule.2025.102178

Abstract

We examine the latest developments in all-climate batteries (ACBs) that enable efficient and resilient energy storage across extreme temperature ranges, e.g., from −50oC to +60oC. A figure of merit is presented to quantify where the current state of art, the latest advances and the future targets stand in this rapidly evolving field. We review two distinctive approaches driving power and stability improvements in both low- and high-temperature environments: materials innovation (particularly electrolyte formulations) and thermal actuation. It is found that there are still two-orders-of-magnitude gaps from the ACB target of high-temperature stability by materials innovation alone and that the material-thermal synergetic approach promises to attain the dual goals of ACBs for uncompromised power and stability at both low and high temperatures. Future research should be focused on developing heat-tolerant electrolytes and electrodes that can survive in 70oC–85oC environments.

0402電気応用
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