Herbalife. has filed a patent for a series-type charging and discharging apparatus without current interruption. The method involves using a bi-directional main power supply to charge and discharge secondary batteries connected in series, with auxiliary charging power supplies to compensate for capacity differences. The system allows continuous charging and discharging without interruptions. GlobalData’s report on Herbalife 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 Herbalife, Low glycaemic index foods was a key innovation area identified from patents. Herbalife's grant share as of January 2024 was 34%. Grant share is based on the ratio of number of grants to total number of patents.

Series-type charging and discharging apparatus without current interruption

Source: United States Patent and Trademark Office (USPTO). Credit: Herbalife Ltd

The patent application (Publication Number: US20230396081A1) describes a series-type charging and discharging apparatus that eliminates current interruption by utilizing a bi-directional main charging and discharging power supply. This apparatus allows for the continuous charging and discharging of a series of secondary batteries according to a predetermined recipe without any interruptions in the current flow. To address capacity differences between the batteries, auxiliary charging power supplies are installed in parallel to individual batteries, compensating for any variations in capacity. These auxiliary charging power supplies are configured as insulated unidirectional switch mode DC-to-DC converters, using a power source from a DC grid or separate DC and AC power inputs to adjust the voltage and current of each battery.

During the charging process, the main charging and discharging power supply follows a constant current charging section based on the battery with the smallest capacity, transitioning to a constant voltage charging section where the auxiliary charging power supply controls the charging current according to the predetermined recipe. Similarly, during discharging, the main power supply discharges at a constant current based on the battery with the largest capacity, while the auxiliary power supply ensures a continuous current flow for batteries with smaller capacities. This innovative apparatus aims to streamline the charging and discharging process for series-connected batteries, ensuring efficient and uninterrupted power management.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. 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.