Group 1 - Zhuhai Guanyu Battery Co., Ltd. has applied for a patent titled "A Negative Electrode Sheet and Lithium-Ion Battery," with publication number CN119890219A, filed on December 2024 [1] - The patent aims to improve lithium-ion battery technology by providing a negative electrode sheet that reduces lithium plating and dendrite formation, enhances edge lithium plating window, and lowers the risk of thermal runaway caused by dendrite penetration [1] - The negative electrode sheet features a non-active material layer that replaces traditional ear protection glue, which can reduce the overall thickness of the battery cell and increase energy density [1] Group 2 - Zhuhai Guanyu Battery Co., Ltd. was established in 2007 and is primarily engaged in the manufacturing of electrical machinery and equipment [2] - The company has a registered capital of 1,121.857134 million RMB and has made investments in 10 enterprises [2] - The company has participated in 120 bidding projects and holds 3,050 patent records along with 42 trademark records and 376 administrative licenses [2]