線形類似MLCCにおける調整された原子スケール多形分極変動による大容量静電エネルギー貯蔵
Da Li1, Ze Zhang1, Weichen Zhao2
1Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi'an, China.
Advanced materials (Deerfield Beach, Fla.)
|January 8, 2026
まとめ
鉛フリー積層セラミックコンデンサ(MLCC)におけるエントロピーエンジニアリングは、原子スケールの無秩序状態を作り出し、エネルギー貯蔵を強化する。このアプローチは、高度な電子デバイスに高い回収可能エネルギー密度と効率をもたらす。
科学分野:
- 材料科学; 凝縮系物理学; セラミックス工学
背景:
- 携帯電子機器の需要増加は、高度なエネルギー貯蔵ソリューションを必要としています。; 鉛フリー積層セラミックコンデンサ(MLCC)は、エネルギー貯蔵能力の向上が求められる重要なコンポーネントです。
研究 の 目的:
- 鉛フリーMLCCのエネルギー貯蔵特性を強化するための新しい戦略を開発すること。; エントロピーエンジニアリングが原子スケール分極と材料性能に及ぼす影響を調査すること。
主な方法:
- エントロピーエンジニアリングを用いて原子スケール格子欠陥を誘発しました。; エントロピーを増加させることにより多形分極変動を生成し、菱面体晶相と正方晶相の共存をもたらしました。; 極性異方性とドメインスイッチング障壁は大幅に低減されました。
主要な成果:
- 巨大な回収可能エネルギー密度(Wrec)は1045 kV·cm⁻¹で21.3 J·cm⁻³を達成しました。; 高いエネルギー効率(η)は94.5%で観測されました。; 高エントロピーMLCCは、優れた広温度、周波数、およびサイクル安定性を示しました。
結論:
- エントロピーエンジニアリングは、優れた性能を持つ鉛フリーMLCCを設計するための効果的なアプローチです。; 本研究は、MLCC開発における重要なエントロピー-構造-性能相関を明らかにしました。; この研究は、次世代エネルギー貯蔵デバイスのための信頼性の高い技術戦略を提供します。
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