CN-122024936-A - Electrochemical model determining method and device, electronic equipment, medium and product

CN122024936ACN 122024936 ACN122024936 ACN 122024936ACN-122024936-A

Abstract

The application provides a method and a device for determining an electrochemical model, electronic equipment, a medium and a product, and belongs to the technical field of batteries. The method for determining the electrochemical model comprises the steps of receiving design description information of a target battery, wherein the design description information comprises demand parameters of the target battery or design parameters of the target battery, screening electrochemical model parameters meeting the design description information from a preset model database according to the design description information, and generating a target electrochemical model of the target battery in a combined mode according to the electrochemical model parameters.

Inventors

LI XIAOTONG
WU XINGYUAN
WEI YIMIN

Assignees

宁德时代新能源科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (15)

1. A method of determining an electrochemical model, the method comprising: receiving design description information of a target battery, wherein the design description information comprises a demand parameter of the target battery or a design parameter of the target battery; According to the design description information, electrochemical model parameters meeting the design description information are screened from a preset model database; and combining and generating a target electrochemical model of the target battery according to the electrochemical model parameters.
2. The method of claim 1, wherein the design description information includes electrolyte names and electrode material names, the pre-set model database includes a pre-set electrochemical model library, and wherein the screening electrochemical model parameters from the pre-set model database that satisfy the design description information based on the design description information includes: And screening electrode materials meeting the design description information from the preset electrochemical model library according to the electrolyte names and the electrode material names, wherein the electrode comprises a positive electrode and a negative electrode.
3. The method according to claim 2, wherein the screening the electrode material satisfying the design description information from the preset electrochemical model library according to the electrolyte name and the electrode material name comprises: and determining the electrode material as the electrode material meeting the design description information in response to the preset electrochemical model library only comprising electrolyte and electrode material corresponding to the electrolyte name and the electrode material name.
4. The method according to claim 2, wherein the screening the electrode material satisfying the design description information from the preset electrochemical model library according to the electrolyte name and the electrode material name comprises: and responding to the preset electrochemical model library, wherein the electrochemical models comprise electrolyte and electrode materials corresponding to the electrolyte names and the electrode material names, and determining the electrode materials to be electrode materials meeting the design description information based on the precision priorities of the electrochemical models.
5. The method according to claim 2, wherein the screening electrode materials satisfying the design description information from the preset electrochemical model library according to the electrolyte names and the electrode names comprises: and responding to the situation that the electrochemical models in the preset electrochemical model library do not comprise electrolyte and electrode materials corresponding to the electrolyte names and the electrode names, and screening the electrode materials meeting the design description information from the preset electrochemical model library according to the electrode names.
6. The method of claim 5, wherein the screening electrode materials satisfying the design description information from the preset electrochemical model library according to the electrode names comprises: And determining the electrode material to be the electrode material meeting the design description information according to the response that only one electrochemical model contained in the preset electrochemical model library comprises the electrode material corresponding to the electrode name.
7. The method of claim 5, wherein the screening electrode materials satisfying the design description information from the preset electrochemical model library according to the pole piece names comprises: And responding to the electrode materials corresponding to the names of the pole pieces contained in the plurality of electrochemical models in the preset electrochemical model library, and determining the electrode materials to be electrode materials meeting the design description information based on the precision priorities of the plurality of electrochemical models.
8. The method of claim 5, wherein the screening electrode materials satisfying the design description information from the preset electrochemical model library according to the electrode names comprises: And determining the electrode material to be the electrode material meeting the design description information based on the type of the battery chemical system to which the electrode material belongs in response to the fact that the electrode material corresponding to the electrode name is not included in the preset electrochemical model library.
9. The method of claim 2, wherein the design description information further includes electrolyte names and separator names, the pre-set model database further includes a pre-set materials library, and the screening electrochemical model parameters from the pre-set model database that satisfy the design description information according to the design description information includes: And screening out the electrolyte and the isolating film meeting the design description information from the preset material library according to the electrolyte name and the isolating film name.
10. The method of claim 9, wherein the design description information further includes electrode design parameters, wherein the screening electrochemical model parameters from a pre-set model database that satisfy the design description information based on the design description information includes: and screening the electrode design parameters meeting the design description information from the preset electrochemical model library according to the electrode design parameters.
11. The method according to any one of claims 1 to 10, further comprising: and correcting thermodynamic parameters and kinetic parameters included in the electrochemical model according to electrochemical model parameters in the target electrochemical model.
12. An apparatus for determining an electrochemical model, the apparatus comprising: A receiving module configured to receive design description information of a target battery, the design description information including a demand parameter of the target battery or a design parameter of the target battery; The screening module is configured to screen electrochemical model parameters meeting the design description information from a preset model database according to the design description information; a combining module configured to combine the electrochemical model parameters to generate a target electrochemical model of the target battery.
13. An electronic device, comprising: at least one processor, and At least one memory communicatively coupled to the at least one processor, the at least one memory storing instructions that, when executed by the at least one processor, individually or collectively, cause the computing device to perform the method of any one of claims 1-11.
14. A computer-readable storage medium storing instructions that, when executed by one or more processors of a computing device, individually or collectively, cause the computing device to perform the method of any one of claims 1-11.
15. A computer program product comprising instructions that, when executed individually or collectively by one or more processors of a computing device, cause the computing device to perform the method of any of claims 1-11.

Description

Electrochemical model determining method and device, electronic equipment, medium and product Technical Field The present application relates to the field of battery technologies, and in particular, to a method and apparatus for determining an electrochemical model, an electronic device, a medium, and a product. Background Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles. In the design process of the battery, an electrochemical model of the battery needs to be determined, and the electrochemical model of the battery can influence the service life of the battery. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the background art. Therefore, an object of the present application is to provide a method and apparatus for determining an electrochemical model, an electronic device, a medium and a product, so as to improve the matching accuracy of a target electrochemical model. The embodiment of the first aspect of the application provides a method for determining an electrochemical model, which comprises the steps of receiving design description information of a target battery, wherein the design description information comprises a demand parameter of the target battery or a design parameter of the target battery, screening electrochemical model parameters meeting the design description information from a preset model database according to the design description information, and generating a target electrochemical model of the target battery in a combined mode according to the electrochemical model parameters. According to the technical scheme, the electrochemical model parameters meeting the design description information can be screened out by receiving the design description information of the target battery, the target electrochemical model of the target battery is generated by combining, the most suitable model can be quickly matched from the rich preset data model library only through the input of a small amount of standardized templates, the determination efficiency of the target electrochemical model is improved, and the matching precision of the target electrochemical model is improved due to the fact that the correlation among the electrochemical model parameters is comprehensively considered by a matching strategy. In some embodiments, the design description information further includes an electrolyte name and an electrode material name, the pre-set model database further includes a pre-set electrochemical model library, and the screening of electrochemical model parameters satisfying the design description information from the pre-set model database according to the design description information includes screening electrode materials satisfying the design description information from the pre-set electrochemical model library according to the electrolyte name and the electrode material name, wherein the electrode includes a positive electrode and a negative electrode. According to the names of the electrolyte and the electrode materials, electrode materials meeting design description information are screened from a preset electrochemical model library, so that the accuracy of the electrode materials is improved, and meanwhile, the determination efficiency of an electrochemical model is also improved. In some embodiments, screening electrode materials from a library of pre-set electrochemical models for meeting the design description information based on electrolyte names and electrode material names includes determining the electrode materials as electrode materials for meeting the design description information in response to only one electrochemical model contained in the library of pre-set electrochemical models including electrolyte and electrode materials corresponding to the electrolyte names and electrode material names. And screening whether an electrolyte corresponding to the electrolyte name exists or not and matching an electrochemical model of an electrode material corresponding to the electrode material name from a preset electrochemical model library according to the electrolyte name and the electrode material name, and if only one electrochemical model exists to meet the condition, the electrode material in the electrochemical model is the electrode material meeting the description information. In some embodiments, screening electrode materials from a library of pre-set electrochemical models for meeting design description information based on electrolyte names and electrode material names includes determining, in response to the library of pre-set electrochemi