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Retired lithium ion battery module screening and recombining system and method used for energy storage power station

A lithium-ion battery, energy storage power station technology, applied in the field of retired battery reuse, can solve the problems of increased screening and reorganization costs, huge workload, etc., and achieve the effect of reducing costs and reducing working hours

Inactive Publication Date: 2017-03-22
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention is to solve the problem of screening and recombination after the decommissioning of the existing lithium-ion power batteries of electric vehicles. The use of monomer screening results in a huge workload, and the need to re-package in groups of shells increases the cost of screening and recombination. Now it provides System and method for screening and recombining decommissioned lithium-ion battery modules in energy storage power stations

Method used

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  • Retired lithium ion battery module screening and recombining system and method used for energy storage power station

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specific Embodiment approach 1

[0017] Specific implementation mode one: refer to figure 1 Specifically explain this embodiment, the decommissioned lithium-ion battery module screening and reorganization system for energy storage power stations described in this embodiment, it includes:

[0018] Charge and discharge test equipment: used to detect the rate discharge capacity, rate charge capacity, voltage, internal resistance, temperature, temperature change rate, charge retention and life of the N retired lithium-ion battery modules to be screened, N is a positive integer;

[0019] Consistency evaluation platform: used to evaluate the discharge performance consistency, charge performance consistency, voltage consistency, internal resistance consistency, temperature consistency, temperature change rate consistency, and charge consistency of N retired lithium-ion battery modules to be screened. Maintain volume consistency and lifetime consistency;

[0020] Comprehensive screening evaluation unit: used to scre...

specific Embodiment approach 2

[0023] Specific embodiment 2: This embodiment is a further description of the decommissioned lithium-ion battery module screening and reorganization system for energy storage power stations described in specific embodiment 1. In this embodiment,

[0024] The charge and discharge test equipment includes the following units: rate discharge capacity measurement unit, rate charge capacity measurement unit, voltage measurement unit, internal resistance measurement unit, temperature and temperature change rate measurement unit, charge retention measurement unit and life measurement unit;

[0025] Consistency evaluation platform includes the following units: discharge performance consistency evaluation unit, charging performance consistency evaluation unit, voltage consistency evaluation unit, internal resistance consistency evaluation unit, temperature and temperature change rate consistency evaluation unit, charge retention consistency Performance evaluation unit and life consistenc...

specific Embodiment approach 3

[0034] Specific embodiment three: The method for screening and recombining decommissioned lithium-ion battery modules used in energy storage power stations described in this embodiment, the method includes the following steps:

[0035] Charge and discharge test steps: used to detect the rate discharge capacity, rate charge capacity, voltage, internal resistance, temperature, temperature change rate, charge retention and life of the N decommissioned lithium-ion battery modules to be screened;

[0036] Consistency evaluation step: used to evaluate the discharge performance consistency, charge performance consistency, voltage consistency, internal resistance consistency, temperature consistency, temperature change rate consistency, and charge consistency of N retired lithium-ion battery modules to be screened. Maintain volume consistency and lifetime consistency;

[0037] Comprehensive screening evaluation step: used to screen the N retired lithium-ion battery modules to be scree...

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Abstract

The present invention relates to a retired lithium ion battery module screening and recombining system and method used for an energy storage power station, and relates to the retired battery reutilization field. The system and the method of the present invention are used to solve the problems that the screening and recombination of the conventional retired electric automobile lithium ion power batteries adopts the monomer screening, so that the workload is huge, the bunching shell package needs to be carried out again, and the screening and recombination cost is increased. The retired lithium ion battery module screening and recombining system and the retired lithium ion battery module screening and recombining method used for the energy storage power station of the present invention acquire the discharge capability, the charge capability, the voltages, the internal resistance, the temperatures, the charge retention capability and the service lives of the retired lithium ion battery modules, and obtain the discharge capability consistency, the charge capability consistency, the voltage consistency, the internal resistance consistency, the temperature consistency, the charge retention capability consistency and the service life consistency by the data, evaluate correspondingly, and then screen and recombine, and finally apply to the energy storage power station. The system and the method of the present invention are suitable for the retired battery reutilization field.

Description

technical field [0001] The invention belongs to the field of reuse of decommissioned batteries. Background technique [0002] After the decommissioning of lithium-ion power batteries for electric vehicles, many lithium-ion power batteries still maintain a usable capacity of close to 80%. Therefore, these decommissioned lithium-ion power batteries can be screened, regrouped, and applied to energy storage power stations. [0003] However, after the decommissioning of lithium-ion power batteries for electric vehicles, if single screening is used, the workload is huge, and group casing packaging needs to be repackaged, which increases the cost of screening and reorganization. Contents of the invention [0004] The present invention is to solve the problem of screening and recombination after the decommissioning of the existing lithium-ion power batteries of electric vehicles. The use of monomer screening results in a huge workload, and the need to re-package in groups of shell...

Claims

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Application Information

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IPC IPC(8): G01R31/36H01M10/54
CPCY02W30/84G01R31/392G01R31/385H01M10/54
Inventor 武国良陈继忠李相俊于海洋徐冰亮董尔佳张明江郭袅姜鹏
Owner STATE GRID CORP OF CHINA
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