Evaluation Method of Residual Value of Recycled Batteries

Abstract

The embodiments of the present invention relate to a residual value evaluation method for used storage batteries to be recycled. The method includes the following steps that: the identification codesof storage batteries are configured; the identification information of the storage batteries is extracted, and standardization processing is performed on the identification information of the storagebatteries; discharge detection is performed on the storage batteries under a preset condition, and the discharge data of the storage batteries under a preset condition are recorded; the standard discharge curve of the storage batteries is obtained according to the discharge data; analysis processing is performed on the standard discharge curve, so that the calibration capacities of the storage batteries are obtained, correlation relationships among the standard discharge curve, the calibration capacities and the identification codes are established and saved; discharging is performed on the storage batteries according to a first time interval, wherein the storage batteries have been installed on a base station, detection is performed, discharge current and discharge durations during the discharge process are acquired; the current battery capacities of the storage batteries corresponding to the first time interval are obtained according to the discharge current and discharge durations;and the residual value evaluation results of the storage batteries are obtained according to the calibration capacities and the current battery capacities of the storage batteries corresponding to thefirst time interval.

Description

technical field [0001] The invention relates to the field of accumulators, in particular to a residual value evaluation method for reusable accumulators. Background technique [0002] At present, the electric vehicle industry and industry are developing very rapidly. With the widespread use of new energy vehicles, their power batteries will theoretically be replaced one after another when the remaining capacity is less than 80% after several years of use. Therefore, there is a huge amount of decommissioned batteries to be reused. The existing methods of disposing of these used batteries are usually directly recycled and decomposed, which will cause several problems: First, the decomposition of batteries will cause certain environmental pollution, because the life cycle is short , the frequency of recycling and reproduction will increase, leading to more environmental pollution; second, the used batteries still have a certain discharge capacity and cycle times, and there is a...

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Problems solved by technology

[0002] At present, the electric vehicle industry and industry are developing very rapidly. With the widespread use of new energy vehicles, their power batteries will theoretically be replaced one after another when the remaining capacity is less than 80% after several years of use. Therefore, there is a huge amount of decommissioned batteries to be reused. The existing methods of disposing of these used batteries are usually directly recycled and decomposed, which will cause several problems: First, the decomposition of batteries will cause certain environmental pollution, because the life cycle is short , the frequency of recycling and reproduction will increase, leading to more environmental pollution; second, the used batteries still have a certain discharge capacity and cycle times, and there is a large space for utilization. great waste of

[0003] However, due to the lack of data available for evaluation during the driving and use stage of new energy vehicles at this stage, and the lack of understanding of various indicators such as battery discharge and charge, temperature, and physical vibration during battery use, it is impossible to treat the residual value of old batteries, Evaluate indicators such as availability, remaining cycle times, and usable time, so that it is impossible to evaluate the residual value of reusable batteries

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