LITHIUM-ION SECONDARY BATTERY

摘要

The present disclosure provides a lithium-ion secondary battery, which comprises: a case made from a conductive material; a cell received in the case; a cap assembly mounted to the case in a sealing way and equipped with electrode posts electrically connected to the cell, the electrode posts are a positive post and a negative electrode post; an electrolyte injected in the case; and at least one adapter member, the each adapter member is made from a conductive material and comprises: a connection portion fixedly connected to the corresponding one electrode post equipped to the cap assembly; and a contact portion extending downwardly into a space between the cell and the case from the connection portion at a lateral side of the cell, so that the contact portion contacts with the case to realize a short-circuit between the electrode posts when the case is crushed under an external force.

主权项

1. A lithium-ion secondary battery, comprising:
a case (1) made from a conductive material; a cell (2) received in the case (1); a cap assembly (3) mounted to the case (1) in a sealing way and equipped with electrode posts (31) electrically connected to the cell (2), the electrode posts (31) being a positive electrode post and a negative electrode post; and an electrolyte injected in the case (1); the lithium-ion secondary battery further comprising: at least one adapter member (4), the each adapter member (4) being made from a conductive material, and the each adapter member (4) comprising:
a connection portion (41) fixedly connected to the corresponding one electrode post (31) equipped to the cap assembly (3); anda contact portion (42) extending downwardly into a space between the cell (2) and the case (1) from the connection portion (41) at a lateral side of the cell (2), the contact portion (42) contacting with the case (1) to realize a short-circuit between the positive electrode post and the negative electrode post when the case (1) is crushed under an external force.