{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9791519","patent":{"patent_number":"US-9791519","title":"Apparatus and method for accurate energy device state-of-charge (SoC) monitoring and control using real-time state-of-health (SoH) data","assignee":null,"inventors":[],"filing_date":"2016-04-22T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J"],"num_claims":20,"abstract":"A device and associated testing method for empirically determining the state-of-charge of an electrochemical energy device, comprising: applying electrical excitations to the energy device at a predetermined electrical excitation frequency ωe; applying mechanical excitations to the energy device at a predetermined mechanical excitation frequency ωm; measuring an electrically-induced phase difference Δθe(ωe) between voltage (V) and current (I) within the energy device from applying the electrical excitations; measuring a mechanically-induced phase difference Δθe(ωm) between voltage (V) and current (I) within the energy device from applying the mechanical excitations; and deducing the empirical real-time state-of-health of the energy device by comparing the electrically-induced phase difference Δθe(ωe) with the mechanically-induced phase difference Δθe(ωm); and using the deduced state of health to determine the state of charge."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for accurate energy device state-of-charge (SoC) monitoring and control using real-time state-of-health (SoH) data","description":"A device and associated testing method for empirically determining the state-of-charge of an electrochemical energy device, comprising: applying electrical excitations to the energy device at a predet","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9791519","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-9791519","citation_suggestion":"Patentable. \"Apparatus and method for accurate energy device state-of-charge (SoC) monitoring and control using real-time state-of-health (SoH) data\" (US-9791519). https://patentable.app/patents/US-9791519","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9791519","json":"https://patentable.app/api/llm-context/US-9791519","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:40:18.406Z"}