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Recycling method for waste power lithium ion batteries

A technology of lithium ion battery and lithium iron phosphate battery is applied in the field of lithium ion battery to ensure the service life and improve the effect of consistency.

Active Publication Date: 2016-04-13
SHANDONG GOLDENCELL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for recycling waste power lithium-ion batteries, which solves the problem of effectively utilizing the remaining energy of waste power lithium-ion batteries and maximizes the utilization value of power batteries

Method used

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  • Recycling method for waste power lithium ion batteries
  • Recycling method for waste power lithium ion batteries
  • Recycling method for waste power lithium ion batteries

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0040] Taking the recycling method of waste power lithium-ion batteries in the lithium iron phosphate system as an example, and taking the 48V120Ah battery pack as an example, the waste power lithium-ion batteries are collected for information collection, performance testing, and availability judgment. Specific steps are as follows.

[0041] The first step: information collection, check the nameplate, label and other information on the battery pack, collect the positive electrode material system, nominal voltage, and nominal capacity information of the battery pack or module, and make records, among which the nominal capacity is marked for C0.

[0042]

[0043] The second step: performance testing, disassemble all the battery packs into battery cells for testing.

[0044] A: Voltage detection, the detection results are shown in Table 2.

[0045]

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Abstract

The invention provides a recycling method for waste power lithium ion batteries. The method solves the problem that the complementary energy of the waste power lithium ion batteries can be effectively utilized and exerts the use value of the power batteries to the maximum extent. In order to realize the purpose, the technical scheme adopted by the recycling method is that the recycling method for the waste power lithium ion batteries comprises the following steps: firstly, information collection: examining nameplate and label information on a battery pack; secondly, performance detection: A, battery monomer voltage detection, B, battery monomer internal resistance detection, C, capacity detection, and D, self-discharge detection; and thirdly, utilizability judgment. The recycling method has the beneficial technical effects that the waste batteries are recycled to fully exert the use value of the complementary energy of the waste power lithium ion batteries; the consistency effect of the combination of the waste batteries once again is effectively improved through the system testing of battery voltage, internal resistance, capacity, capacity retention ratio and self-discharge rate, and then the service life of the recycled batteries is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion batteries, and relates to a recycling method for waste power lithium-ion batteries. Background technique [0002] Due to the advantages of high energy density, low self-discharge, and excellent cycle performance, lithium-ion batteries are widely used in electric vehicles, electric bicycles, and electric tools. However, with the increase in the consumption of lithium-ion batteries, more and more lithium-ion batteries lose their normal use value after long-term charge and discharge, and become waste batteries. And most power batteries are no longer used when the discharge capacity is less than 70%, but at this time its energy density and comprehensive performance are still not inferior to new lead-acid batteries. In addition, the positive and negative electrode materials, electrolytes, and electrolyte solvents of waste lithium-ion batteries have potential environmental pollution. With the incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54H01M10/42
CPCH01M10/4207H01M10/4221H01M10/54Y02E60/10Y02W30/84
Inventor 关成善宗继月李涛王勇周会张敬捧
Owner SHANDONG GOLDENCELL ELECTRONICS TECH
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