Electrode connecting device of synclastic guide-pin type cylindrical polymer lithium battery, and battery
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A connection device, a cylindrical technology, applied in the field of electrode connection devices, can solve the problems of not being able to use electromechanical automation, low reliability, poor stability, etc., so that it is not easy to break and deform, improve the yield rate, and have high stability and reliability Effect
Active Publication Date: 2014-12-03
SHANDONG HANGE BATTERY TECH CO LTD
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Problems solved by technology
[0005] Existing cylindrical polymer lithium-ion batteries usually use positive and negative tabs drawn from two opposite directions, and both tabs are flat strip-shaped structures, which are relatively thin and soft. Therefore, in the follow-up During processing, it is easy to break and the yield rate is low
On the other hand, due to the above structure, when the subsequent finished lithium battery is connected to the circuit board or electrical appliances, only manual methods can be used instead of electromechanical automation, which has poor stability and low reliability.
Method used
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Embodiment 1
[0042] The present embodiment provides a kind of electrode connection device of co-guided cylindrical polymer lithium battery, such as figure 1 shown, which includes:
[0043] a negative part disposed on the negative end of the battery, a positive part disposed on the positive end of the battery, and a connection part 30 for connecting the positive part and the negative part;
[0044] The negative part includes a negative connecting piece 11 electrically connected to the negative point of the battery, and one end of the negative connecting piece 11 is connected to one end of the connecting part 30;
[0045] The positive part includes: an I-shaped lug shunt device 21, a negative pole post 22 and a positive pole post 23 for conducting electricity respectively provided at both ends of the "I" shape of the tab shunt device 21. The inside of the tab shunting device 21 is provided with a negative conductive wire for connecting the negative pole 22 and the other end of the connectin...
Embodiment 2
[0052] This embodiment provides a cylindrical polymer lithium battery using the connection device described in Embodiment 1, such as Figure 2 to Figure 4 shown, which includes:
[0053] A cylindrical electrolyte package 100 , a battery case 200 , and an electrode connection device arranged between the electrolyte package 100 and the battery case 200 .
[0054] The electrode connection device includes:
[0055] A negative part disposed on the negative end of the battery, a positive part disposed on the positive end of the battery, and a connection part 330 for connecting the positive part and the negative part.
[0056] The negative part includes a negative connecting piece 311 electrically connected to the negative pole of the battery, and one end of the negative connecting piece 311 is connected to one end of the connecting part 330 .
[0057] The positive part includes: an I-shaped lug shunt device, a negative pole 322 and a positive pole 323 for conducting electricity, w...
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Abstract
The invention discloses an electrode connecting device of a synclastic guide-pin type cylindrical polymer lithium battery. The electrode connecting device comprises a positive electrode part at a negative electrode end of the battery, a positive electrode part at a positive electrode end of the battery, and a connecting part for connecting the positive electrode part and the negative electrode part, wherein the negative electrode part comprises a negative electrode connecting sheet electrically connected with a negative electrode point of the battery, and one end of the negative electrode connecting sheet is connected with one end of the connecting part; the positive electrode part comprises an I-shaped tab shunt device, and two ends of the I-shaped device are provided with a negative column and a positive column for electric conduction respectively; a negative electrode electric lead for connecting the negative column to the other end of the connecting part is arranged in the tab shunt device; the positive column is connected and communicated with a positive electrode point of the battery through a positive electrode electric lead in the tab shunt device; the positive electrode electric lead and the negative electrode electric lead are insulated. Furthermore, the cylindrical polymer lithium battery adopting the synclastic guide-pin type electrode connecting device is adopted. The electrode connecting device disclosed by the invention is applicable to automation.
Description
technical field [0001] The invention relates to the field of lithium batteries, in particular to an electrode connection device of a coaxial guide pin type cylindrical polymer lithium battery and a battery using the connection device. Background technique [0002] According to the different electrolyte materials used in lithium-ion batteries, lithium-ion batteries are divided into liquid lithium-ion batteries (Liquified Lithium-Ion Battery, referred to as LIB) and polymer lithium-ion batteries (Polymer Lithium-Ion Battery, referred to as PLB) or plastic lithium-ion batteries. Ion batteries (Plastic Lithium Ion Batteries, referred to as PLB). The positive and negative electrode materials used in polymer lithium-ion batteries are the same as liquid lithium ions. The positive electrode materials are divided into lithium cobaltate, lithium manganese oxide, ternary materials and lithium iron phosphate materials. The negative electrode is graphite, and the working principle of the...
Claims
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Application Information
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