Factors affecting the safety of lithium batteries

With the popularity of new energy vehicles, people's demand for power lithium battery is increasingly exuberant. However, the recent frequent occurrence of new energy vehicle fires, the survey results show that most of them are related to power batteries, so the safety of power lithium battery has become a hot topic of discussion.

Has more factors affecting the safety of lithium-ion battery, the battery materials have important effects on the safety of the lithium battery, because the battery materials with thermal activity commonly, when the battery temperature rising, the interior will be a lot of fluid, when the heat is not lost in time, it is easy to cause the battery safety accidents, so lithium battery anode materials are selected and has important effect on the battery safety performance.

Second battery manufacturing process is also the important factors that affect the battery safety performance, one of the main three factors, respectively is the cathode capacity ratio, slurry evenness control, coating quality control, which is the ratio of the cathode capacity is related to the service life of the battery, the safety performance, to ensure the safety performance of battery, need give full consideration to the battery positive negative circulation features and lithium anode accept ability. The size uniformity directly affects the distribution uniformity of the active material on the electrode. And coating quality control is not very easy to cause a short circuit inside the battery, in addition, coating thickness and uniformity will affect the active material embedded and removed.

At present, lithium ion battery is more and more widely used, so it is necessary to improve the production process of power lithium battery as soon as possible, to ensure the safety of power lithium battery, so as to promote the development of lithium battery and related industries.

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