{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9746526","patent":{"patent_number":"US-9746526","title":"Battery cell unit and method for determining a complex impedance of a battery cell arranged in a battery cell unit","assignee":null,"inventors":[],"filing_date":"2014-09-04T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J"],"num_claims":6,"abstract":"A battery cell unit includes a battery cell and a monitoring device for monitoring the state of the battery cell. The monitoring device comprises an actuating device configured to activate an impedance spectroscopy mode provided by the battery cell unit, in which impedance spectroscopy mode measurement currents can be applied to the battery cell to perform impedance spectroscopy of the battery cell, said measurement currents flowing through the battery cell and comprising alternating currents at different frequencies. The monitoring device also comprises a sensor device designed to detect the measurement currents and the corresponding measurement voltages, each of which is a battery cell voltage arising as a response to a measurement current, such that a complex impedance of the battery cell can be determined from the measured values of the measurement currents and the measurement voltages as a function of the frequency of the measurement currents within predetermined tolerance limits."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Battery cell unit and method for determining a complex impedance of a battery cell arranged in a battery cell unit","description":"A battery cell unit includes a battery cell and a monitoring device for monitoring the state of the battery cell. The monitoring device comprises an actuating device configured to activate an impedanc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9746526","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-9746526","citation_suggestion":"Patentable. \"Battery cell unit and method for determining a complex impedance of a battery cell arranged in a battery cell unit\" (US-9746526). https://patentable.app/patents/US-9746526","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9746526","json":"https://patentable.app/api/llm-context/US-9746526","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:08:16.239Z"}