Group 1 - The core viewpoint of the news is the application for a patent by China Automotive Engineering Research Institute Co., Ltd. and Beijing Lianyu Technology Co., Ltd. for a method, device, and storage medium to assess the health status of power batteries [1] - The patent application, published as CN121454333A, was filed on October 2025 and relates to the field of digital data processing [1] - The proposed method includes executing full capacity cycle tests, incremental capacity analysis tests, and mixed pulse power characteristic tests to evaluate the state of health (SOH) of power batteries [1] Group 2 - China Automotive Engineering Research Institute Co., Ltd. was established in 2001 in Chongqing, focusing on professional technical services, with a registered capital of 1,004.18 million RMB [2] - The company has invested in 39 enterprises, participated in 5,000 bidding projects, and holds 2,106 patents [2] - Beijing Lianyu Technology Co., Ltd. was founded in 2021 in Beijing, primarily engaged in technology promotion and application services, with a registered capital of 10 million RMB [2] - The company has invested in 5 enterprises, participated in 11 bidding projects, and holds 34 patents [2]

Group 1 - The core point of the news is that Seres Automotive Co., Ltd. has applied for a patent related to a method for assessing the health status of power batteries, which aims to improve the accuracy of State of Health (SOH) evaluations and enhance battery safety [1] Group 2 - The patent application, titled "A Method, Device, Equipment, and Storage Medium for Assessing the Health Status of Power Batteries," was published with the number CN120669131A and was filed on August 2025 [1] - The technology disclosed in the patent focuses on battery management, specifically calibrating a thermal-electrical coupling model based on battery characteristic parameters at different SOH states [1] - The method includes analyzing real vehicle data under preset operating conditions to determine the target constant current voltage range, which is then used to calculate a comprehensive state index for the battery [1] Group 3 - Seres Automotive Co., Ltd. was established in 2012 and is located in Chongqing, primarily engaged in the automotive manufacturing industry [2] - The company has a registered capital of approximately 1.06 billion RMB and has made investments in 10 enterprises, participated in 25 bidding projects, and holds 4099 patents [2]