SK Innovation has patented an apparatus and method for calculating insulation resistances and parasitic capacitances of a battery outside the battery itself. The method involves using specific components and switches to accurately measure and calculate the characteristics of the battery without needing to move it. GlobalData’s report on SK Innovation gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on SK Innovation, Battery management systems was a key innovation area identified from patents. SK Innovation's grant share as of February 2024 was 35%. Grant share is based on the ratio of number of grants to total number of patents.
Method for calculating battery characteristics using an apparatus
A recently granted patent (Publication Number: US11921165B2) discloses a method for calculating characteristics of a battery using a specialized apparatus. The method involves controlling various switches and resistors within the apparatus to measure voltage, insulation resistances, and parasitic capacitance of the battery. By utilizing a series of resistors and switches in different configurations, the control unit can accurately determine these key characteristics. The method includes calculating the voltage of the battery based on resistance values and ADC outputs, as well as determining insulation resistances by measuring values from multiple ADCs in different switch states.
Furthermore, the patent details additional steps for calculating the parasitic capacitance of the battery, both for the positive and negative electrodes. By controlling specific switches and resistors within the apparatus, the control unit can measure insulation voltages and calculate the parasitic capacitance using predefined equations. The method outlined in the patent provides a comprehensive approach to accurately assess the characteristics of a battery, enabling efficient monitoring and maintenance of battery performance in various applications.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
