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Study on Flexible Styrene‐Ethylene‐Butylene‐Styrene‐Coal Gangue Composite Phase Change Encapsulation Materials for Battery Thermal Management

バッテリー熱管理のための柔軟なスチレン-エチレン-ブチレン-スチレン-炭鉱廃石複合相変化カプセル材料の研究 (AI 翻訳)

Lin Huang, Like Wang, Zeyang Li, Jiateng Zhao, Changhui Liu

Batteries & Supercaps📚 査読済 / ジャーナル2026-06-01#EV・輸送Origin: CN
DOI: 10.1002/batt.70356
原典: https://doi.org/10.1002/batt.70356

🤖 gxceed AI 要約

日本語

炭鉱廃石（CG）とパラフィンワックス（PW）を用いた複合相変化材料（CPCM）を開発。CGを多孔質担体、SEBSをポリマー封入材として物理混合し、漏れを防ぎ熱伝導率を向上。バッテリー熱管理試験で、CPCMコーティングにより安全動作時間が1.5～2.5倍延長され、高温時の過熱を抑制。廃棄物の高価値利用とEVバッテリーの性能向上に貢献。

English

This study develops a flexible composite phase change material (CPCM) using coal gangue waste and paraffin wax for battery thermal management. The CPCM prevents leakage, improves thermal conductivity by over 100%, and extends safe operation time of batteries by 1.5-2.5 times at high discharge rates. It offers a sustainable solution for waste utilization and enhances EV battery safety.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本のEV・バッテリー産業において、廃棄物利用と熱管理は重要課題。本研究成果は、炭鉱廃石の有効活用とバッテリーの安全性向上の両立を示しており、日本の素材メーカーやバッテリーメーカーにとって参考となる。

In the global GX context

Globally, battery thermal management is critical for EV safety and performance. This paper demonstrates a novel approach using coal gangue waste to create efficient phase change materials, which could reduce waste and improve battery reliability, aligning with circular economy goals in the energy transition.

👥 読者別の含意

🔬研究者:Material scientists studying phase change materials or battery thermal management can explore the use of coal gangue as a porous carrier.

🏢実務担当者:Battery manufacturers and thermal management engineers can consider this CPCM for enhancing battery safety and lifetime.

📄 Abstract（原文）

Coal gangue (CG) solid waste causes severe environmental issues, and pure paraffin wax (PW) has leakage and low thermal conductivity defects, limiting its battery thermal management application. Here, CG‐styrene‐ethylene‐butylene‐styrene (SEBS)/PW composite phase change materials (CPCMs) with different ratios were prepared by physical mixing, with CG as porous carrier and SEBS as polymer encapsulant. Characterizations confirmed only physical interactions between components; PW was uniformly loaded to form a rigid‐flexible synergistic structure, retaining PW's phase change performance with no leakage at 50°C. SP5 showed excellent stability after 1000 thermal cycles, and sample achieved the optimal thermal conductivity (over 100% higher than pure PW). The flexible CPCMs could be tightly wrapped on cylindrical batteries. battery thermal management tests at 1.5–3 C discharge rates indicated that CPCM‐coated batteries had obvious temperature rise delay effects, with the safe operation time to 50°C prolonged 1.5–2.5 times compared with the blank group (more prominent at higher rates), effectively suppressing battery overheating. This work realizes high‐value CG utilization and provides a high‐performance flexible CPCM for battery thermal management, facilitating green development of the coal and new energy battery industries.

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