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<p>Driven by global strategies for decarbonization and carbon neutrality, renewable-energy intermittency underscores the importance of large-scale electrochemical energy storage (EES). Rechargeable batteries, as the core components within EES, have long been restricted by limitations intrinsic to conventional dilute electrolytes, including narrow electrochemical stability windows, poor low-temperature performance, high flammability, and weak compatibility with high-voltage electrodes. Regulation of solvation structure in electrolytes has emerged as a key approach to overcome these bottlenecks. This review highlights five representative strategies: highly concentrated electrolytes, localized high-concentration electrolytes, weakly solvating electrolytes, hydrogen-bond regulated electrolytes, and eutectic electrolytes. These strategies have greatly advanced Li-ion, Na-ion, Zn-ion, Li–S, Li–air, and Na–S batteries. Finally, challenges ahead and opportunities in solvation-structure design are summarized to guide innovative and sustainable progress in next-generation energy storage technologies.</p><p><MediaObject ID="MO101"> <ImageObject Color="Color" FileRef="MediaObjects/40820_2026_2119_Figa_HTML.png" Format="PNG" Height="767" Rendition="HTML" Resolution="300" Type="LinedrawHalftone" Width="766" /> </MediaObject></p>

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Electrolyte Evolution: A Roadmap from Solvation Structure to Next-Generation Batteries

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月10日

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  • Chengfeng Li,
  • Xiangyu Chen,
  • Lingfei Zhao,
  • Yaojie Lei,
  • Zhuo Yang,
  • Kunjie Zhu,
  • Hua-Kun Liu,
  • Shi-Xue Dou,
  • Yun-Xiao Wang

摘要

Driven by global strategies for decarbonization and carbon neutrality, renewable-energy intermittency underscores the importance of large-scale electrochemical energy storage (EES). Rechargeable batteries, as the core components within EES, have long been restricted by limitations intrinsic to conventional dilute electrolytes, including narrow electrochemical stability windows, poor low-temperature performance, high flammability, and weak compatibility with high-voltage electrodes. Regulation of solvation structure in electrolytes has emerged as a key approach to overcome these bottlenecks. This review highlights five representative strategies: highly concentrated electrolytes, localized high-concentration electrolytes, weakly solvating electrolytes, hydrogen-bond regulated electrolytes, and eutectic electrolytes. These strategies have greatly advanced Li-ion, Na-ion, Zn-ion, Li–S, Li–air, and Na–S batteries. Finally, challenges ahead and opportunities in solvation-structure design are summarized to guide innovative and sustainable progress in next-generation energy storage technologies.