CATL Applied for Energy Storage System Startup Related Patent to Reduce First Energy Storage System Startup Time and Gas Consumption

March 22 News, according to the State Intellectual Property Office, CATL (Contemporary Amperex Technology Co. Limited) has applied for a patent titled “Method, Device, and Storage System for Starting Energy Storage System.” The application publication number is CN121710557A, application number CN202610152443.5, published on March 20, 2026. The application was filed on February 3, 2026. The inventor is Duan Xingyu. The patent agency is Beijing Longshuang Lida Intellectual Property Agency Co., Ltd., with patent agents Han Di and Mao Wei. The classification codes are H02J15/20, F04B35/04, F04B41/02, F01K3/00, F01K3/18.

Patent Abstract: The embodiment of this application provides a method, device, and storage system for starting an energy storage system, which can reduce the startup time of the first energy storage system and the amount of gas consumed stored in the first energy storage system. The energy storage system includes a first and a second energy storage system, electrically connected to each other. The method includes: detecting the power input of the first energy storage system; when abnormal power input is detected, controlling the second energy storage system to drive the compressor and heat exchange device in the first energy storage system to start the first energy storage system. The first and second time periods at least partially overlap, with the first time period being the time during which the second energy storage system drives the compressor, and the second time period being the time during which it drives the heat exchange device.

CATL was established on December 16, 2011, and listed on the Shenzhen Stock Exchange on June 11, 2018. Its registered and office addresses are both in Ningde City, Fujian Province. It is a leading global provider of power battery systems, focusing on the R&D and manufacturing of power and energy storage batteries, with strong technical strength and high investment value.

CATL’s stock belongs to the Power Equipment - Batteries - Lithium Batteries sector under Shenwan industry classification, covering concepts such as Qilin batteries, solid-liquid batteries, and sodium batteries. It mainly engages in the R&D, production, and sales of power and energy storage batteries, with products widely used across various fields and scenarios. It also involves battery materials and recycling businesses, with markets domestically and internationally.

By 2025, CATL’s revenue reached 423.702 billion yuan, ranking first among two companies in the industry, far surpassing the second-ranked Boruiwei’s 2.735 billion yuan, and exceeding the industry average and median of 213.219 billion yuan. In its main business, power battery systems account for 74.70%, totaling 316.506 billion yuan. Net profit in 2025 was 76.786 billion yuan, also ranking first in the industry, far exceeding the second-ranked Boruiwei’s 54.4961 million yuan, and above the industry average and median of 38.42 billion yuan.

Recent patent applications by CATL include:

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