Defendant
1 case as defendant.
Ningde Amperex Technology Ltd is a China-based company specializing in the manufacturing of lithium-ion polymer batteries. Founded in 2008 and headquartered in Ningde, China, the company operates as a subsidiary of Amperex Technology Limited (ATL), which in turn is a wholly-owned subsidiary of the Japanese multinational electronics manufacturer TDK Corporation. ATL, its parent, was founded in 1999 in Hong Kong and is a significant global producer of lithium-ion batteries. As of December 2025, Amperex Technology Ltd. (China) had an employee count of 7,081, with ATL having an estimated annual revenue of $100,000,000.
The company's core business involves providing high-quality lithium batteries and related services. Its products are categorized into high energy density, high power, fast-charging, arbitrary-shaped cells (ASC), and battery packs. These batteries are widely used in consumer electronics such as smartphones, notebook PCs, tablets, power banks, micro mobile devices, drones, robots, smart wearables, and residential energy storage systems (RESS). Ningde Amperex Technology Ltd also has export operations, with 1,595 export shipments to buyers in markets including India.
In terms of patent litigation, Ningde Amperex Technology Ltd maintains a defensive posture. According to the provided case data, the company has been a defendant in one tracked case and has no record of acting as a plaintiff. This single instance is noted as "Petitioner v. Ningde Amperex Technology Ltd" before the PTAB, indicating it is defending against a challenge to one of its patents or a related entity's patent.
Ningde Amperex Technology Ltd's parent, ATL, is a leading innovator in lithium-ion batteries and has accumulated thousands of patents globally. Notably, ATL's former electric vehicle battery division was spun off in 2011 to form Contemporary Amperex Technology Co., Limited (CATL), which has since become a global leader in EV and energy storage batteries, though ATL maintains some strategic partnerships and joint ventures with CATL for certain battery ventures.