The introduction of lithium battery electrode

Electrode is lithium ion polymer battery product of a raw material. The electrode is divided into three kinds of materials, the battery of the anode materials used aluminum (Al), the cathode materials used nickel (Ni), and the cathode has copper plating nickel (Ni, Cu) materials. They are compounded by the film and the metal belt.

Film is a part of the insulation on the ear, it is the function of battery packaging to prevent short-circuit between metal belt and aluminum-plastic film, and encapsulated by heat (140 ℃) and aluminum-plastic film hot melt sealing together to prevent leakage.

An ear is made up of two pieces of the metal belt clip in the middle of the film.Film in the market today have black glue, white glue and single glue three.Commonly used black film is three layers of structure: melanin, melting point 66 ℃;PE, melting point 105 ℃;PP, melting point 137 ℃.Very ear finished product packaging can be divided into disc (the whole metal belt through winding equipment and film after the whole article) in coil and plate (metal belt with film after cutting into a single, then the rows are put to use sandwiched in between two pieces of thin transparent plastic sheet).

"Extremely" refers to "positive" and "very" in "negative", "ears" refers to "positive" and "negative" used in the strip, the metal belt like the "ears" on both sides is symmetrical, belongs to the combination of function and image type name, Taiwan called "ear" for "guide handle" is similar to the name, widely used in the industry of high "shoulder" and "shoulder" can be thought of as a continuation of "ear" name or segmentation, because it was very dangerous height and width "ears", and "shoulder" can, later will not high "shoulder" and "shoulder" named "ear high" and "ears" wide.

More precisely, "ear" is a "connection, conductive, seals"."Connection" is refers to the battery internal and external connection, ear glue the aluminum composite membrane and connectivity;"Conductive" refers to by ear electrical leads to and produce circuit;"Seal" is refers to the strip and the metal belt between the seal and seal between the strip and aluminum composite membrane.

Because of "electrode" from the beginning is in the true sense of localization. It is not a simple imitation (Sumitomo is automatic heat roping type electrode at the beginning, and domestic is manual plate electrode). High frequency automatic roll type extremely electrode that is electrode equipment complete localization in the true sense. Electrode metal belt surface has nano chemical treatment, especially nickel electrode nickel strip surface nano chemical treatment, but it also has to learn domestic electrode innovation, forcing sumitomo electrode have to accept domestic electrode. The metal surface treatment has not been well solved. Compared with the domestic electrode in this respect, there is a certain gap.

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