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探索低成本可再生能源，科研人员把目光投向了常被忽视的“冰能”。2025年8月27日，西安交通大学航天航空学院力化学耦合与智能介质实验室申胜平团队等在《Nature Physics》报道：常见六方冰在非均匀变形下会产生极化并输出电信号，证实冰的挠曲电性，并揭示其在温度低于-110℃下的表面铁电行为（表层分子像小磁针那样整齐指向，电极性可切换），然而力电转换强度远达不到实用。为了增强冰的挠曲电性，研究团队进一步于2025年9月15日在《Nature Materials》发表新作，提出在冰里掺少量食盐的方法。这样做会让冰晶之间的“缝隙”形成纳米级的薄薄盐水通道；当冰被弯曲时，这些盐水会从受压一侧被“挤”向受拉一侧，因界面携带净电荷而形成电流。研究团队把这一全新的力—电转换方式命名为“挠曲流电效应”。结果非常亮眼：在约25%（质量分数）的NaCl条件下，冰的等效挠曲电系数被放大到约3 μC/m，比纯冰提升了3个数量级。

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探索低成本可再生能源，科研人员把目光投向了常被忽视的“冰能”。2025年8月27日，西安交通大学航天航空学院力化学耦合与智能介质实验室申胜平团队等在《Nature Physics》报道：常见六方冰在非均匀变形下会产生极化并输出电信号，证实冰的挠曲电性，并揭示其在温度低于-110℃下的表面铁电行为（表层分子像小磁针那样整齐指向，电极性可切换），然而力电转换强度远达不到实用。为了增强冰的挠曲电性，研究团队进一步于2025年9月15日在《Nature Materials》发表新作，提出在冰里掺少量食盐的方法。这样做会让冰晶之间的“缝隙”形成纳米级的薄薄盐水通道；当冰被弯曲时，这些盐水会从受压一侧被“挤”向受拉一侧，因界面携带净电荷而形成电流。研究团队把这一全新的力—电转换方式命名为“挠曲流电效应”。结果非常亮眼：在约25%（质量分数）的NaCl条件下，冰的等效挠曲电系数被放大到约3 μC/m，比纯冰提升了3个数量级。

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