South Korean scientists develop safe lithium battery materials

South Korean scientists develop safe lithium battery materials

In recent years, many mobile phone and notebook explosions and fire accidents have made people more careful when using lithium battery devices. Now, scientists from South Korea have developed a new material for the manufacture of lithium batteries, which claims to greatly reduce the possibility of explosion and fire, and improve the safety level of lithium batteries.

The Korea Atomic Energy Research Institute (KAERI) recently announced that its researchers have developed a new material for lithium battery separators that can withstand the impact of higher temperatures and large forces. Previous research believed that poor tolerance to high temperatures and impacts is the main reason for the frequent occurrence of lithium battery explosion and fire accidents.

The battery separator is a layer of inorganic or organic film that separates the positive and negative electrodes of the battery to prevent direct contact between the two electrodes and short circuit. It is usually made of polyethylene. The new separator developed by KAERI is made of polyethylene, nano-alumina and fluorinated resin, and has been irradiated to effectively compensate for the defects of existing lithium batteries.

It is said that the use of the mixture membrane can maintain its insulation under a high temperature of 150 degrees Celsius and a relatively strong external impact, and the ordinary polyethylene membrane has already striked at this time. KAERI has applied for two patents on this technology, and hopes to apply it to lithium battery manufacturing soon.

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