Tianci Materials applies for patents related to negative electrode sheets to improve fast charging and cycling performance of secondary batteries and to reduce the risk of thermal runaway.

On March 22, the State Intellectual Property Office’s information shows that Guangzhou Tinci High-tech Materials Co., Ltd. has applied for a patent titled “An Anode Electrode Sheet and Secondary Battery.” The application publication number is CN121709537A, the application number is CN202610210905.4, the publication date is March 20, 2026, and the application date is February 13, 2026. The inventors are Bai Jiayu, Hu Hao, Liu Tianjiao, Fan Weizhen, and Shi Litao. The patent agency is Beijing Baishan Song Intellectual Property Agency (General Partnership), with patent agents Liu Jifu and Wang Chunwei. The classification codes are H01M4/13, H01M4/36, H01M4/62, H01M10/0525, H01M10/42.

The patent abstract states that this application relates to the field of electrochemical technology, providing an anode electrode sheet and secondary battery. The anode electrode sheet includes an anode current collector, an anode material layer, and a first coating. At least one surface of the anode current collector is provided with the anode material layer, and the first coating is on the surface of the anode material layer. The first coating includes a metal-organic framework material, with the molecular formula MaZr6Om(OH)n(OL)6‑(x+y)/2(solv)x(blank)yNb. This configuration helps improve the fast-charging and cycling performance of the secondary battery, while also reducing the severity of thermal runaway, thereby lowering the risk of fire or explosion.

Tinci Materials was established on June 6, 2000, and listed on the Shenzhen Stock Exchange on January 23, 2014. Its registered and business addresses are both in Guangzhou, Guangdong Province. The company is a leading enterprise in electrolyte materials domestically, with core business in fine chemical new materials and advantages in full industry chain layout.

Tinci Materials mainly engages in the research and development, production, and sales of fine chemical new materials. Its industry classification is Power Equipment - Batteries - Battery Chemicals, involving concepts such as battery recycling, solid-state batteries, and high transfer concepts.

In 2025, Tinci Materials achieved revenue of 16.65 billion yuan, ranking first among three industry companies, above the industry average of 13.303 billion yuan and median of 15.711 billion yuan. The second-ranked company, Putailai, had 15.711 billion yuan. Its main business revenue includes 15.051 billion yuan from lithium-ion battery materials (90.39%), 1.285 billion yuan from daily chemical materials and specialty chemicals (7.72%), and 315 million yuan from other sources (1.89%). Net profit in 2025 was 1.344 billion yuan, ranking second in the industry, with the top company, Putailai, at 2.605 billion yuan. The industry average net profit was 1.466 billion yuan, and the median was 1.344 billion yuan.

Recent patent applications by Guangzhou Tinci High-tech Materials Co., Ltd. are as follows:

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