This inventor holds 4 USPTO granted patents and 3 published patent applications and 3 EPO patents. Top assignee: Calb Co., Ltd.. Active years: 2024-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2024-2025
Title: Innovations by Ruijun Ma in Battery Technology
Introduction
Ruijun Ma is a prominent inventor based in Changzhou, China, known for his significant contributions to battery technology. With a total of four patents to his name, he has developed innovative methods and devices that enhance the performance and accuracy of battery systems.
Latest Patents
One of Ruijun Ma's latest patents is titled "Method and device for estimating state of power of battery system." This invention provides a method and device that effectively track the open-circuit voltage (OCV) change and impedance change under current operating conditions. It does this by analyzing the amount of lithium intercalation in multiple predetermined positions within the active material of the battery. This approach allows for the determination of dynamic correspondences between OCV and state of charge (SOC) as well as impedance and SOC.
Another notable patent is the "State of charge determination method and apparatus for battery system." This invention discloses a method for determining the SOC of a battery system. By utilizing the correspondence between impedance and SOC, along with the OCV and SOC, the invention establishes a correction coefficient that improves the accuracy of SOC estimations. This innovation effectively eliminates the accumulation of errors in SOC determination.
Career Highlights
Ruijun Ma is currently associated with Calb Co., Ltd., a company recognized for its advancements in battery technology. His work at Calb has positioned him as
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile