一种生物基电解液添加剂、制备方法及应用
By introducing N-(3-indolyl)-5-oxopyrrolidine-2,3-dicarboxylic acid electrolyte additive into aqueous zinc batteries, the problems of zinc dendrite formation and hydrogen evolution reaction were solved, significantly improving the cycle life and safety of the batteries.
CN121460739BActive Publication Date: 2026-07-17DALIAN MEDICAL UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN MEDICAL UNIVERSITY
- Filing Date
- 2025-11-06
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Aqueous zinc batteries suffer from zinc dendrite growth, hydrogen evolution reaction, and corrosion, leading to safety hazards and shortened battery life.
Method used
N-(3-indolyl)-5-oxopyrrolidine-2,3-dicarboxylic acid was used as an electrolyte additive. It formed a physical barrier on the zinc surface by adsorption of the indole ring, and the carboxyl group of trans-aconitine was used to coordinate with zinc ions to construct a stable electrode-electrolyte interface, thereby inhibiting zinc dendrites and side reactions.
Benefits of technology
It significantly improves the cycle life of aqueous zinc batteries, inhibits zinc dendrite growth and hydrogen evolution reaction, and achieves a long cycle life of aqueous zinc batteries, reaching 2500 hours.
✦ Generated by Eureka AI based on patent content.
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Figure CN121460739B_ABST
Abstract
本发明公开了一种生物基电解液添加剂、制备方法及应用，所述生物基电解液添加剂为N‑(3‑吲哚乙基)‑5‑氧代吡咯烷‑2,3‑二羧酸，该添加剂的原料源自可再生的生物质资源：色胺前体可来源于天然色氨酸的微生物代谢，而反式乌头酸则可从乌头等植物中直接提取，通过两种绿色可再生的生物基原材料合成了N‑(3‑吲哚乙基)‑5‑氧代吡咯烷‑2,3‑二羧酸。其作为水系锌电的电解液添加剂融合了色胺的界面吸附与反式乌头酸的离子配位能力，协同构筑了稳定的电极‑电解液界面，能够协同抑制锌枝晶的生长与析氢等副反应，显著缓解锌负极腐蚀，实现了长循环寿命的水系锌电池，所述水系锌电池的循环寿命达到2500小时。
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