Group 1 - The State Intellectual Property Office of China has granted a patent to Zhejiang Nandu Power Supply Co., Ltd. for a technology related to battery cell groups with splicing-type connecting pieces, with the announcement number CN115693038B and application date of November 2022 [1] - Zhejiang Nandu Power Supply Co., Ltd. was established in 1997 and is located in Hangzhou, primarily engaged in the manufacturing of electrical machinery and equipment, with a registered capital of 8.9836 billion RMB [1] - The company has invested in 37 enterprises, participated in 1,141 bidding projects, holds 46 trademark registrations, and has 927 patents, along with 57 administrative licenses [1] Group 2 - Hangzhou Nandu Power Technology Co., Ltd., established in 2010 and also located in Hangzhou, focuses on the manufacturing of computers, communications, and other electronic devices, with a registered capital of 900 million RMB [1] - The company has participated in 20 bidding projects, holds 463 patents, and has 24 administrative licenses [1]

Group 1 - The State Intellectual Property Office of China has granted a patent titled "Non-aqueous Electrolyte and Its Lithium-ion Battery" to Hefei Saiwei Electronic Materials Co., Ltd., Zhuhai Saiwei Electronic Materials Co., Ltd., and Huainan Saiwei Electronic Materials Co., Ltd. The patent announcement number is CN119812478B, with an application date of February 2025 [1][2]. - Hefei Saiwei Electronic Materials Co., Ltd. was established in 2021, located in Hefei, with a registered capital of 100 million RMB. The company has participated in 69 bidding projects and holds 153 patent records, along with 38 administrative licenses [1]. - Zhuhai Saiwei Electronic Materials Co., Ltd. was founded in 2007, based in Zhuhai, with a registered capital of approximately 69.27 million RMB. The company has invested in 11 enterprises, participated in 18 bidding projects, and holds 430 patent records, in addition to 39 administrative licenses [1]. - Huainan Saiwei Electronic Materials Co., Ltd. was also established in 2021, located in Huainan, with a registered capital of 100 million RMB. The company has participated in 147 bidding projects and holds 148 patent records, along with 44 administrative licenses [2].

Group 1 - Zhejiang Geely Holding Group Co., Ltd. was established in 2003 and is located in Hangzhou, primarily engaged in the automotive manufacturing industry with a registered capital of 1.03 billion RMB [2] - The company has made investments in 37 enterprises and participated in 523 bidding projects, holding 5,000 trademark records and 5,000 patent records, along with 274 administrative licenses [2] Group 2 - Zhejiang Zeekr Intelligent Technology Co., Ltd. obtained a patent titled "Negative Electrode Sheet and Its Preparation Method and Battery," with the authorization announcement number CN119812214B, and the application date is January 2025 [1] - The company was founded in 2021 and is located in Ningbo, focusing on research and experimental development, with a registered capital of 1.3 billion RMB [1] - Zeekr has invested in 10 enterprises, participated in 195 bidding projects, and holds 5,000 patent records, in addition to having 4 administrative licenses [1] Group 3 - Weir Electric Vehicle Technology (Ningbo) Co., Ltd. was established in 2017 and is also located in Ningbo, primarily engaged in the automotive manufacturing industry with a registered capital of approximately 122.45 million RMB [1] - The company has made investments in 1 enterprise, participated in 237 bidding projects, holds 1,225 patent records, and has 25 administrative licenses [1]

Core Insights - Contemporary Amperex Technology Co., Limited (CATL) has filed an international patent application for a battery device and electrical device, with the application number PCT/CN2024/128582, set to be published on October 9, 2025 [1][2]. Patent Details - The patent titled "Battery Device and Electrical Device" includes a case, battery cells, and a protective plate, with specific structural features aimed at enhancing safety and performance [2]. - The patent application was filed on October 30, 2024, and the priority date is April 1, 2024 [2]. R&D Investment and Patent Activity - In 2023, CATL has published 1,174 international patent applications, representing a 22.8% increase compared to the same period last year [3]. - The company invested 10.095 billion yuan in research and development in the first half of 2023, which is a year-on-year increase of 17.48% [3].

Core Viewpoint - BYD Company Limited has applied for a patent for a battery system and vehicle, indicating ongoing innovation in electric vehicle technology [1] Company Overview - BYD Company Limited was established in 1995 and is located in Shenzhen, primarily engaged in the automotive manufacturing industry [1] - The company has a registered capital of 30,390.65855 million RMB [1] - BYD has invested in 105 enterprises and participated in 995 bidding projects [1] - The company holds 1,820 trademark registrations and 5,000 patent records, along with 149 administrative licenses [1] Patent Details - The patent application, titled "A Battery System and Vehicle," was published under the number CN120517225A with an application date of June 2025 [1] - The battery system includes two cell groups with different types of cells, connected through various switching devices to input and output ports [1]

金融界2025年4月26日消息，国家知识产权局信息显示，松下新能源(无锡)有限公司取得一项名为"电池 充电机构"的专利，授权公告号 CN 222785789 U，申请日期为2024年6月 专利摘要显示， 本实用新型提供一种适合对多个电池同时进行预充电的电池充电机构， 具备治具(1)，其 中设置有多个电池槽(11)，可容纳多个电池(5);充电组件(2)，至少具备针板(23)，多个针状的充电端子 (21)固定在所述针板(23)上;气缸(3)，位于所述充电组件(2)的上方;以及底板(4)，具备2条以上的定位挡板 (42，44)，其特征在于，所述治具(1)通过所述定位挡板(42，44)被定位于所述底板(4)的表面，在所述气 缸(3)的驱动下，所述充电组件(2)可相对于所述治具(1)向下方移动，从而通过所述充电端子(21)对所述电 池(5)进行充电。 关注公众号，点击公众号主页右上角" ··· "，设置星标 "⭐" ，关注 鑫椤锂电 资讯~ 本文来源：当升科技 天眼查资料显示， 松下新能源(无锡)有限公司， 成立于2001年，位于无锡市，是一家以从事电气机械和 器材制造业为主的企业。企业注册资本600000万日元。通过 ...

Group 1 - The core point of the article is that Contemporary Amperex Technology Co., Ltd. (CATL) has applied for a patent related to battery cells, which aims to enhance the reliability of battery units [1][3] Group 2 - The patent application, titled "Battery Cell, Battery, and Power Equipment," was published under CN 119695072 A and was filed on September 2024 [1] - The battery cell includes an electrode assembly with a positive electrode sheet made of nickel-containing compounds, which allows for reversible extraction and embedding of metal ions [1] - The shell of the battery cell is designed to withstand tensile strength between 100 MPa and 1200 MPa at a temperature of 500°C, with specific distance requirements from the weld seam [1] Group 3 - CATL was established in 2011 and is primarily engaged in the manufacturing of electrical machinery and equipment [2] - The company has a registered capital of approximately 4398.81 million RMB and a paid-in capital of 400 million RMB [2] - CATL has invested in 131 companies and participated in 443 bidding projects, holding 620 trademark records and 5000 patent records [2]