MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617095397 A) filed by Svolt Energy Technology Co. , Ltd. on August 06, 2026, for Cover Plate Assembly And Battery Cell.
Inventors include Gong, Weihong; Li, Jincheng; Sun, Chao; Liu, Jie; Li, Jian; and Zhou, Jie.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: A cover plate assembly and a battery cell comprising the cover plate assembly. The cover plate assembly comprises a cover plate (1) and an explosion-proof valve body (2). The explosion-proof valve body (2) comprises a valve plate (20); the valve plate (20) comprises an opening portion (200) and an outer edge portion (201) surrounding the opening portion (200); the outer edge portion (201) is connected to the cover plate (1); the valve plate (20) is provided with a score line (202); the score line (202) has a first end (2020) and a second end (2021); a base (21) surrounds the outer edge portion (201); and the base (21) has a first side surface (210) and a second side surface (211). The residual thickness of the valve plate (20) at the score line (202) is T, the depth of the score line is T1, the distance between the first side surface (210) and the second side surface (211) is W1, and the minimum distance between the score line (202) and the second side surface (211) is W2, satisfying: 0.2=T/(T+T1)=0.5, and 0.3=W2-W1=5. By optimizing the parameters and dimensions of portions of the valve plate (20), it is ensured that the explosion-proof valve body (2) and the cover plate (1) have sufficient structural strength, thereby improving the overall strength of the battery cell. In addition, when the pressure inside the battery cell reaches a threshold, the opening portion (200) can be opened in a timely manner by means of the score line (202), thereby improving the safety of a battery.
Disclaimer: Curated by HT Syndication.
