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Views: 0 Author: Site Editor Publish Time: 2025-01-08 Origin: Site
The application of 4A molecular sieves in solvent dehydration in the lithium battery industry is crucial, especially during the production of lithium batteries, where controlling the water content in the solvent plays a key role in battery performance and safety. The electrolyte of lithium batteries typically consists of organic solvents (such as dimethyl carbonate (DMC), ethylene carbonate (EC), etc.) mixed with lithium salts (such as LiPF6). In lithium battery production, the water content in the solvents must be strictly controlled because excessive water can affect the performance and stability of the battery and may even lead to safety issues. The details are as follows：
1. Efficient Removal of Water from Electrolyte Solvents
4A molecular sieves, with a pore size of approximately 4Å, effectively absorb water molecules while not adsorbing solvent molecules such as dimethyl carbonate (DMC) or ethylene carbonate (EC). During lithium battery production, 4A molecular sieves are used to remove trace amounts of water from the solvents, ensuring the purity of the electrolyte. The presence of water can cause hydrolysis of lithium salts in the solution, generating corrosive substances that negatively affect the performance and lifespan of the battery.
2. Improving Battery Performance and Stability
The electrolyte for lithium batteries needs to be prepared in a high-purity environment to avoid adverse reactions due to water. Excessive water can reduce the conductivity of the electrolyte, increase impedance, and even affect the battery's charge and discharge efficiency. 4A molecular sieves effectively remove water from the electrolyte, maintaining the stability of the electrolyte and thereby improving the overall performance of the battery.
3. Preventing Adverse Reactions and Enhancing Safety
Water is a potential hazard in lithium battery electrolytes. Excessive water can lead to reactions between the electrolyte and lithium metal, generating harmful substances such as hydrofluoric acid and even causing thermal runaway in the battery. Using 4A molecular sieves for dehydration minimizes the impact of water, enhancing the safety of the battery and preventing risks such as explosions or leaks.
About Chemxin:
Guangzhou Chemxin Environmental Material Co., Ltd. has been engaged in the production of molecular sieves for 22 years. Our factory was established in 2002 and covers an area of 42,000 square meters. We have over 250 employees, including a professional R&D team. Our annual production capacity exceeds 50,000 tons. Competitive pricing and on-time delivery are our standout features.
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