| CPC H01M 50/15 (2021.01) [H01M 50/131 (2021.01); H01M 50/143 (2021.01); H01M 50/176 (2021.01); H01M 50/317 (2021.01); H01M 50/627 (2021.01)] | 20 Claims |
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1. An end cover assembly, for an energy-storage apparatus, wherein the end cover assembly comprises:
an end cover;
an insulating member, wherein the insulating member and the end cover are stacked in a first direction, the insulating member comprises a first separate member, a second separate member, a third separate member, and a fourth separate member, the first separate member is spaced apart from the second separate member in a second direction different from the first direction, and the first separate member and the second separate member each are provided with an accommodating portion; wherein the third separate member is connected between the first separate member and the second separate member, the fourth separate member is connected between the first separate member and the second separate member, the fourth separate member and the third separate member are arranged in a third direction, and each accommodating portion is between the third separate member and the fourth separate member; and the third separate member, the first separate member, and the second separate member cooperatively define a first accommodating space, the fourth separate member, the first separate member, and the second separate member cooperatively define a second accommodating space, the third direction is different from the first direction, and the third direction is different from the second direction;
a positive pole penetrating through the third separate member and the end cover;
a negative pole penetrating through the fourth separate member and the end cover;
a first connecting member accommodated in the first accommodating space and connected to the positive pole;
a second connecting member accommodated in the second accommodating space and connected to the negative pole;
an explosion-proof valve disposed on the end cover; and
an explosion-proof-valve support, wherein the explosion-proof-valve support is a metal member, the explosion-proof-valve support is accommodated in the accommodating portion of the first separate member and the accommodating portion of the second separate member, and a gas chamber is defined between the explosion-proof-valve support and the explosion-proof valve; wherein
the accommodating portion of the first separate member and the accommodating portion of the second separate member define a first gap in communication with the gas chamber in the second direction,
the third separate member is provided with a raised edge extending in the second direction on a surface of the third separate member away from the end cover, the fourth separate member is provided with a raised edge extending in the second direction on a surface of the fourth separate member away from the end cover, the raised edge of the third separate member is at one end of the third separate member close to the fourth separate member, and the raised edge of the fourth separate member is at one end of the fourth separate member close to the third separate member,
a height between a surface of the end cover facing the insulating member and a surface of an end of each accommodating portion away from the explosion-proof-valve support facing the end cover is a first height, and
a height between a surface of each raised edge away from the end cover and the surface of the end cover facing the insulating member is a second height, and the first height is less than the second height, a second gap is defined between each raised edge and a corresponding accommodating portion, and the second gap is in communication with the gas chamber.
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