LITHIUM-ION BATTERY, BATTERY MODULE, BATTERY PACK, AND AUTOMOBILE

• Main Authors: Sun, Huajun, Zhu, Yan, Lu, Zhipei, Hu, Shichao, He, Long, Wang, Chuanfu, Zhu, Jianhua
• Format: Patent
• Language: English; French; German
• Published: 09.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention provides a lithium-ion battery, including: a housing and a separator located inside the housing, where the separator separates internal space of the housing into a plurality of receiving cavities, battery core groups are disposed inside the receiving cavities, the battery core groups each include at least one pole shank, and the battery core groups are connected in series; and at least one separator is provided with a liquid injection hole, and the liquid injection hole is used to connect two adjacent receiving cavities on two sides of the separator; and a block mechanism, where the block mechanism is located inside the housing, the block mechanism enables the liquid injection hole to be in a predetermined state, and the predetermined state includes an open state and a closed state. The battery provided in the present invention ensures isolation and safety of each battery core group while facilitating liquid injection.