Bag-making type lithium ion battery and preparation method thereof
A lithium-ion battery and bag-type technology, which is applied in the manufacture of electrolyte batteries, battery pack components, non-aqueous electrolyte batteries, etc., can solve problems such as low production efficiency and poor control, and achieve improved performance, reduced self-discharge, and improved The effect of sealing and safety performance
Inactive Publication Date: 2013-05-08
TIANJIN ENERGIES
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The invention discloses a bag-making type lithium ion battery and a preparation method thereof. The bag-making type lithium ion battery consists of an aluminum plastic package film, a positive electrode lug, a negative electrode lug, an electrode piece and bag-making type electrode pieces, wherein the electrode pieces and upper and lower layers of membranes are manufactured into a bag containing the electrode pieces in an adhesion manner; the bag-making type electrode pieces and counter electrodes are overlapped together layer to layer to form an electrode group; and the positive electrode lug and the negative electrode lug are respectively welded with a positive electrode lug and a negative electrode lug of the electrode group together. With the adoption of the lithium ion battery provided by the invention, the production efficiency and the yield in manufacturing through a battery assembly process can be improved; and the security problem possibly occurring in a process of using the lithium ion battery can be prevented to a certain extent.
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