Battery cell, battery, electric apparatus, and energy storage apparatus

A battery cell with a capacity greater than 350 Ah comprising:

• a housing;
• electrode terminals, wherein the electrode terminals are disposed on the housing;
• and
• at least one electrode assembly, wherein the electrode assembly is accommodated within the housing, the electrode assembly comprising a body and tabs extending from the body, the tabs being electrically connected to the electrode terminals, and a positive electrode material of the electrode assembly comprising lithium-containing phosphate;
• wherein
• the housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular;
• and
• the housing comprises a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, satisfying:
• (W1−a)*(T1−b)*(H1−c)/(W1*T1*H1)≥90%, and a capacity of the battery cell being C, satisfying:
• C/((W1−a)*(T1−b)*(H1−c))≥118 Ah/L, 5000 cm3≤W1*T1*H1≤40000 cm3,
• wherein the housing comprises a housing body and two end caps, the housing body having two openings disposed opposite each other along the third direction, and the two end caps respectively covering the openings on corresponding sides;
• wherein
• the housing body comprises the first wall, the second wall, the third wall, and the fourth wall formed integrally, and the two end caps are the fifth wall and the sixth wall, respectively,
• the thickness of the first wall and the thickness of the second wall are both a1, the thickness of the third wall and the thickness of the fourth wall are both b1, the thickness of the fifth wall is c1, and the thickness of the sixth wall is c2, satisfying:
• 0.5 mm≤a1≤1.5 mm, 0.5≤b1≤1.5 mm, 1.0 mm≤c1≤2.5 mm, 2.5 mm≤c2≤4 mm, c1>a1, and c1>b1.