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公开(公告)号：US20250070437A1
公开(公告)日：2025-02-27
申请号：US18946955
申请日：2024-11-14
Inventor： Congsheng CHEN , Wenfa LIN , Yu DING , Yaoling WEN
IPC: H01M50/636 , B23K26/20 , B23K101/36 , H01M50/15 , H01M50/186
Abstract: The present disclosure relates to the field of battery technologies, and more particularly, to a battery cell, a battery, an electric apparatus, a welding method, and a welding device. The battery cell includes: an end cover having an injection hole defined thereon; and a seal sealingly connected to the injection hole. A first weld segment and a second weld segment are formed between the seal and the end cover. An annular weld seam of the seal is formed by enclosing with at least a part of the first weld segment and at least a part of the second weld segment together. The first weld segment is formed by continuous laser light. The second weld segment is formed by pulsed laser light.
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