{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9768476","patent":{"patent_number":"US-9768476","title":"System and method for detecting a state of a lithium secondary battery by measuring a voltage of a negative electrode with respect to a reference electrode","assignee":null,"inventors":[],"filing_date":"2015-03-27T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["G06F","H02J"],"num_claims":23,"abstract":"A control system for a lithium secondary battery measures a voltage V of a negative electrode that uses silicon oxide as a negative electrode active material, with respect to a lithium reference electrode and a discharge capacity Q of the lithium secondary battery during discharge of the lithium secondary battery; generates a V−dQ/dV curve representing a relationship between dQ/dV, which is a proportion of an amount of change dQ in the discharge capacity Q to an amount of change dV in the voltage V, and the voltage V; calculates an intensity ratio of two peaks appearing on the V−dQ/dV curve for two voltage values in the voltage V; and senses a state of the negative electrode utilizing the intensity ratio."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for detecting a state of a lithium secondary battery by measuring a voltage of a negative electrode with respect to a reference electrode","description":"A control system for a lithium secondary battery measures a voltage V of a negative electrode that uses silicon oxide as a negative electrode active material, with respect to a lithium reference elect","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9768476","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-9768476","citation_suggestion":"Patentable. \"System and method for detecting a state of a lithium secondary battery by measuring a voltage of a negative electrode with respect to a reference electrode\" (US-9768476). https://patentable.app/patents/US-9768476","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9768476","json":"https://patentable.app/api/llm-context/US-9768476","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:03:08.300Z"}