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Monomer overlarge-capacity polymer lithium ion battery and manufacturing method thereof

A lithium-ion battery and manufacturing method technology, applied in the field of lithium-ion batteries, can solve the problems of limited battery capacity, difficult to achieve high battery capacity, difficult to exceed battery capacity, etc., to achieve the effect of meeting the demand for electricity and increasing the voltage

Active Publication Date: 2017-12-01
海口安博尔能源技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, general manufacturers can only achieve a capacity of less than 50Ah. Some companies can increase the capacity, but only by expanding the length and width. The thickness can only be 20mm, which limits the capacity of the battery. The battery capacity is hard to exceed 500Ah
[0008] In the above prior art, due to various factors, the capacity of the battery is difficult to reach a higher level

Method used

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  • Monomer overlarge-capacity polymer lithium ion battery and manufacturing method thereof
  • Monomer overlarge-capacity polymer lithium ion battery and manufacturing method thereof
  • Monomer overlarge-capacity polymer lithium ion battery and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0093] The manufacturing method of 500Ah high-capacity battery is as follows:

[0094] Step 1: Selection of the total positive tab 50 and the total negative tab 60 of the battery. Calculated according to the maximum battery output current of 1C, which is 500A, the width of the total positive tab 50 is aluminum strip, the thickness a1 is 280mm, the thickness t1 is 0.4mm, the total negative tab 60 is copper strip, the width a2 is 280mm, and the thickness t2 is 0.3mm, the conduction capacity of the aluminum strip is 6A / mm 2 , the conduction capacity of the copper strip is 8A / mm 2 , the current that the total positive tab 50 can pass is 280×0.4×6=672A, the current that the total negative tab 60 can pass is 280×0.3×8=672A, and the total positive and total negative tabs 60 of the battery meet the overcurrent requirements.

[0095] Step 2. Selection of battery size. According to the equipment processing capacity of the factory, the battery length b is set to 430mm, and the width a...

Embodiment 2

[0100] 1000Ah high-capacity battery manufacturing details are as follows:

[0101] Step 1: Selection of the total positive tab 50 and the total negative tab 60 of the battery. Calculated according to the maximum battery output current of 1C, which is 1000A, the width of the total positive tab 50 is aluminum strip, the thickness a1 is 280mm, the thickness t1 is 0.4mm, the total negative tab 60 is copper strip, the width a2 is 280mm, and the thickness t2 is 0.3mm, the conduction capacity of the aluminum strip is 6A / mm 2 , the conduction capacity of the copper strip is 8A / mm 2 , the current that can pass through the total positive tab 50 is 280×0.4×6=672A, the current that can pass through the total negative tab 60 is 280×0.3×8=672A, and the total positive and total negative tabs of the battery need two to meet the overcurrent Require.

[0102] Step 2. Selection of battery size. According to the equipment processing capacity of the factory, the battery length b is set to 430m...

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Abstract

The invention discloses a monomer overlarge-capacity polymer lithium ion battery and a manufacturing method thereof. The manufacturing method of the polymer lithium ion battery comprises the steps of alternatively laminating positive pole plates and negative pole plates at intervals, arranging partition pieces, which are used for partitioning the positive pole plates and the negative pole plates laminated adjacent to each other, between the positive pole plates and the negative pole plates, connecting a total positive tab in parallel with the positive pole plates, connecting a total negative tab in parallel with the negative pole plates to obtain a battery cell; and performing film package, liquid injection, vacuum pumping, formation, aging and grading on an outer surface of the battery. By the manufacturing method, the monomer capacity of the polymer lithium ion battery is improved.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a polymer lithium-ion battery with super large capacity and a manufacturing method thereof. Background technique [0002] At present, the single capacity of lithium-ion batteries can only be less than 260 Ah. For example, the iron battery produced by BYD Company has the largest capacity in the world, which is Nissan's 40 Ah battery. No battery with a larger capacity has yet been mass-produced. [0003] In the prior art, when the battery is used, if the battery needs to provide a larger capacity, the current methods are generally as follows: [0004] The first way is to connect small batteries in parallel to form a battery module to achieve large capacity. [0005] The large capacity made in this way will cause the small batteries connected in parallel to discharge each other, which will affect the charging capacity of the battery. Moreover, after the batteries are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/60H01M10/0525H01M10/0585
CPCH01M4/602H01M10/0525H01M10/0585Y02E60/10Y02P70/50
Inventor 程建聪
Owner 海口安博尔能源技术开发有限公司
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