Magnesium metal battery electrolyte and applications thereof
CN117293386BActive Publication Date: 2026-10-20QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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Patent Information
- Application Number
- CN202210686384.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-16
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2042-06-16
AI Technical Summary
Technical Problem
尽管这些镁电解液具有多种优点，但也存在合成及纯化难的缺点，同时电解液中大多含有游离的氯离子，会对集流体造成腐蚀，严重缩短电池寿命
Benefits of technology
[0031]本发明镁金属电池电解液中所含的含氟含路易斯酸中心的中性分子，在镁金属电池中充放电时，能够与镁负极反应发生化学/电化学反应得到镁盐电解液，该镁盐电解液既可以继续应用于该镁金属电池，也可以生成之后组成其他镁电池。同时该原位得到镁盐形成的界面膜还可以进一步有效解决镁负极的钝化问题，有利于镁电池的循环。这种由中性分子原位形成镁盐的方法大大降低了镁盐的合成成本，并缩短了镁盐的纯化工艺。
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Abstract
The application belongs to the field of magnesium salt for magnesium battery, and particularly relates to a magnesium salt electrolyte formed in-situ by neutral ester molecules in a magnesium battery and application thereof in preparation of a magnesium battery. The electrolyte contains neutral molecules containing Lewis acid centers shown in formula I, wherein the concentration of the neutral molecules containing Lewis acid centers shown in formula I in the electrolyte is 0.1-3.0 M; the magnesium salt is obtained by in-situ reaction of the neutral molecules containing Lewis acid centers with a magnesium negative electrode in a charging and discharging process; and the in-situ magnesium salt electrolyte can also contain other magnesium salts.
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