Biomimetic and biodegradable separator with high modulus and large ionic conductivity enables dendrite-free zinc-ion batteries

The advancement of aqueous zinc-based batteries is greatly restricted by zinc dendrites. One potential solution to this challenge lies in the employment of high-modulus separators. However, achieving both high modulus and large ionic conductivity in a single separator remains a formidable task. Inspired by the wood architecture, this study breaks this trade-off by designing an anisotropic and biodegradable separator. This design significantly improves the modulus along the oriented direction while simultaneously facilitating fast Zn2+ ion transport through aligned vertical channels. Additionally, this configuration resolves the contradiction between low separator thickness and good dendrite-inhibition…

• JA
  Jiangsu Agricultural Science and Technology Innovation Fund

  Award: CX(24)3091
• NN
  National Natural Science Foundation of China

  Award: 51902165
• GO
  Government of Jiangsu Province
• NS
  Natural Science Foundation of Jiangsu Province

  Award: BK20231292