MUMBAI, India, March 14 -- Intellectual Property India has published a patent application (202514078310 A) filed by Aesc Japan Ltd., Kanagawa, Japan, on Aug. 18, 2025, for 'secondary battery, battery pack and electronic device.'

Inventor(s) include Zhang, Wenjing; and Shan, Xueyan.

The application for the patent was published on March 13, under issue no. 11/2026.

According to the abstract released by the Intellectual Property India: "A secondary battery (100) includes an electrode assembly (120), including a first electrode sheet (10), a second electrode sheet (20), and a separator (122). The first electrode sheet includes a first current collector (18), having opposite first surface (181) and second surface (182), partial surfaces of the first surface and the second surface is covered by a first active material layer (16), the first current collector includes an uncoated region (18a); an insulating layer (40), covering at least part of the uncoated region (18a), including a first insulating layer (40a) located at the first surface and a second insulating layer (40b) located at the second surface. The uncoated region of the first current collector bends towards the first surface, a second upper end surface (402) of the second insulating layer (40b) exceeds a first upper end surface (401) of the first insulating layer in a first direction."

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