BATTERY, BATTERY APPARATUS, AND BATTERY MANUFACTURING METHOD
The disclosure provides a battery, a battery apparatus and a battery manufacturing method. The battery manufacturing method includes: providing a first housing including an intermediate part and a first flange, and the intermediate part being a flat plate; or the intermediate part including a top wall and a first side wall enclosing a first accommodating cavity having an opening; providing a second housing including a bottom wall and a second side wall enclosing a second accommodating cavity having an opening, the second side wall extending outward from the opening of the second accommodating cavity to form a second flange, the depth of the first accommodating cavity being smaller than the depth of the second accommodating cavity; disposing a welding head at a side of the first housing away from the second housing, and welding the first flange and the second flange.
1 . A battery manufacturing method, comprising:
proving a first housing, the first housing comprising an intermediate part and a first flange, and the intermediate part being a flat plate; or the intermediate part comprising a top wall and a first side wall, the first side wall extending downward from the top wall, and the first side wall enclosing a first accommodating cavity having an opening;
proving a second housing, the second housing comprising a bottom wall and a second side wall, the second side wall extending upward from the bottom wall, the second side wall enclosing a second accommodating cavity having an opening, the second side wall extending outward from the opening of the second accommodating cavity to form a second flange, a depth of the first accommodating cavity being smaller than a depth of the second accommodating cavity, and the intermediate part covering the opening of the second accommodating cavity; and
disposing a welding head at a side of the first housing away from the second housing, and welding the first flange and the second flange.
2 . The battery manufacturing method according to claim 1 , further comprising:
cutting a portion of the first flange and a portion of the second flange after welding the first flange and the second flange.
3 . The battery manufacturing method according to claim 2 , comprising laser cutting the first flange and the second flange; and
locating the laser cutting head at a side of the first housing away from the second housing.
4 . The battery manufacturing method according to claim 1 , wherein a depth of the first accommodating cavity is not greater than 3 mm.
5 . The battery manufacturing method according to claim 1 , wherein at least one of the first housing and the second housing is formed by stamping a flat plate.
6 . The battery manufacturing method according to claim 1 , wherein before welding the first flange and the second flange, a cell is disposed between the first housing and the second housing so as to seal the cell after the first housing and the second housing are welded.
7 . A battery, comprising:
a first housing, the first housing comprising an intermediate part and a first flange, and the intermediate part is a flat plate; or the intermediate part comprising a top wall and a first side wall, the first side wall extending downward from the top wall, and the first side wall enclosing a first accommodating cavity having an opening;
a second housing, the second housing comprising a bottom wall and a second side wall, the second side wall extending upward from the bottom wall, the second side wall enclosing a second accommodating cavity having an opening, the second side wall extending outward from the opening of the second accommodating cavity to form a second flange, a depth of the first accommodating cavity being smaller than a depth of the second accommodating cavity, and the intermediate part covering an opening of the second accommodating cavity;
a cell, the first flange and the second flange welded to seal the cell in the first housing and the second housings; wherein
a depth of the first accommodating cavity is smaller than a depth of the second accommodating cavity.
8 . The battery according to claim 7 , wherein a depth of the first accommodating cavity is not greater than 3 mm.
9 . The battery according to claim 8 , wherein the side wall of the first accommodating cavity is curved or inclined.
10 . The battery according to claim 7 , wherein a length of the battery is a, a width of the battery is b, and a height of the battery is c, wherein 2b<a<50b, and/or 0.5c<b<20c; and
400 mm<a<2500 mm.
11 . A battery apparatus, comprising a battery according to claim 7 .