{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11275122","patent":{"patent_number":"US-11275122","title":"Battery diagnosis method, battery diagnosis program, battery management apparatus, and power storage system","assignee":null,"inventors":[],"filing_date":"2019-02-12T00:00:00.000Z","publication_date":"2022-03-15T00:00:00.000Z","cpc_codes":["H02J","H02J"],"num_claims":14,"abstract":"A control unit in a battery management apparatus discharges constant direct current from a battery for a predetermined time period or charges the battery with the constant direct current for the predetermined time period to diagnose a state of the battery. A change point is identified where a rise in voltage given by subtracting open circuit voltage of the battery from measured voltage of the battery is varied from a curved line shape to a straight line shape with respect to transition of an increase of a value in which an elapsed time since start of charge-discharge is defined as a square root of time. A rise in voltage from the voltage when the charge-discharge is started to the change point is identified as a rise in voltage caused by resistance components of electrolyte, a negative electrode, and a positive electrode of the battery and a rise in voltage after the change point is identified as a rise in voltage caused by a diffusion resistance component of the battery."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Battery diagnosis method, battery diagnosis program, battery management apparatus, and power storage system","description":"A control unit in a battery management apparatus discharges constant direct current from a battery for a predetermined time period or charges the battery with the constant direct current for the prede","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11275122","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11275122","citation_suggestion":"Patentable. \"Battery diagnosis method, battery diagnosis program, battery management apparatus, and power storage system\" (US-11275122). https://patentable.app/patents/US-11275122","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11275122","json":"https://patentable.app/api/llm-context/US-11275122","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:56:30.950Z"}