BATTERY PACK, VEHICLE, AND ENERGY STORAGE DEVICE

1 - 46 . (canceled)

47 . A battery pack, comprising a cell array and a support member,

wherein the cell array comprises a plurality of cells, at least one of the cells comprises a cell body and electrode terminals extending out of the cell body and configured to output a current, the cell body is substantially a cuboid with a length L, a thickness D, and a height H, a thickness direction of the cell body defines an X direction, a length direction of the cell body defines a Y direction, and a height direction of the cell body defines a Z direction, 600 mm L 2500 mm, 10≤L/D≤208, 4≤L/H≤208, 0.0005 mm −2 ≤L/V≤0.002 mm −2 , the at least one of the cells comprises a casing and a core located inside the casing, a supporting region is formed on the casing, and the supporting region is supported on the support member so that the cell is connected to the support member,

wherein an accommodating cavity for accommodating the cell array is defined by the sealing cover and the support member.

48 . The battery pack according to claim 47 , wherein the plurality of cells are generally disposed along the X direction of the at least one cell in the cell array;

wherein the at least one of cells meets 10≤L/D≤208.

49 - 52 . (canceled)

53 . The battery pack according to claim 47 , wherein the plurality of cells are generally disposed along the Z direction of the at least one cell in the cell array; wherein the at least one of cells meets 10≤L/H≤208.

54 - 56 . (canceled)

57 . The battery pack according to claim 47 , wherein the at least one of cells has a volume V 1 and a surface area S 1 , at least one of cells meets 0.0005 mm −2 ≤L/V 1 ≤0.002 mm −2 ; and a relationship between a surface area S of the cell body and a volume V of the cell body is 0.1 mm −1 ≤S/V≤0.35 mm −1 , a relationship between the height H of the cell body and the volume V of the cell body is 0.0001 mm −2 ≤H/V≤0.00015 mm −2 .

58 - 59 . (canceled)

60 . The battery pack according to claim 47 , wherein the height H of the cell body is greater than or equal to the thickness D of the cell body, the at least one of cells meets 23≤L/D≤208 and 4≤L/H≤21, and the plurality of cells are generally disposed along the X direction of the at least one of cells in the cell array; wherein the length L of the cell body meets 600 mm L 1500 mm.

61 . The battery pack according to claim 60 , wherein the at least one cell meets 9 L/H 13.

62 . The battery pack according to claim 47 , wherein each cell has a first end and a second end along the Y direction, at least one of the first end and the second end has an electrode terminal configured to output a current, and the electrode terminals of the cells are electrically connected to each other through connecting members.

63 . The battery pack according to claim 58 , wherein the cell body has a volume V and a surface area S, and a relationship between the surface area S and the volume V is 0.1 mm −1 S/V 0.35 mm −1 .

64 . The battery pack according to claim 60 , wherein the battery pack further comprises two side plate components disposed opposite to each other on two sides of the cell array along the X direction and configured to sandwich the cell array.

65 . The battery pack according to claim 62 , wherein the battery pack comprises a tray for a vehicle, the tray comprises a first side beam and a second side beam disposed opposite to each other along the Y direction, the first side beam and the second side beam are the support member, and two ends of the cell are respectively supported by the first side beam and the second side beam; wherein the battery pack further comprises a sealing cover, and an accommodating cavity for accommodating the cell array is defined by the sealing cover and the tray.

66 - 69 . (canceled)

70 . The battery pack according to claim 65 , wherein an inner wall surface of the first side beam facing toward the cell has a first support plate protruding therefrom, a side of the first support plate facing toward the sealing cover is provided with a first supporting surface, and a side of the first support plate facing away from the sealing cover is provided with a first mounting surface;

an inner wall surface of the second side beam facing toward the cell has a second support plate protruding therefrom, a side of the second support plate facing toward the sealing cover is provided with a second supporting surface, and a side of the second support plate facing away from the sealing cover is provided with a second mounting surface; and

the first supporting surface and the second supporting surface are configured for supporting a cell, and the first mounting surface and the second mounting surface are configured for mounting a bottom plate.

71 . The battery pack according to claim 70 , wherein the inner wall surface of the first side beam facing toward the cell has a first connecting surface, and a distance from the first connecting surface to the sealing cover is less than a distance from the first supporting surface to the sealing cover; the inner wall surface of the second side beam facing toward the cell has a second connecting surface, and a distance from the second connecting surface to the sealing cover is less than a distance from the second supporting surface to the sealing cover; and the two ends of the cell are respectively in contact with the first connecting surface and the second connecting surface.

72 . The battery pack according to claim 71 , wherein the inner wall surface of the first side beam facing toward the cell has a step structure comprising at least two steps, and sides of two steps facing toward the sealing cover respectively form the first connecting surface and the first supporting surface; and

the inner wall surface of the second side beam facing toward the cell has a step structure comprising at least two steps, and sides of two steps facing toward the sealing cover respectively form the second connecting surface and the second supporting surface.

73 . The battery pack according to claim 71 , wherein further comprising: a first end plate and a second end plate, wherein the first end plate is disposed between the first end of the at least one of cells and the first side beam, and the second end plate is disposed between the second end of the at least one of cells and the second side beam; and the first end of the at least one of cells is connected to the first connecting surface through the first end plate, and the second end of the at least one of cells is connected to the second connecting surface through the second end plate;

wherein the first end plate comprises a first end plate body disposed opposite to an end face of the cell and a first connecting plate connected to the first end plate body and protruding toward the first side beam, the second end plate comprises a second end plate body disposed opposite to an end face of the cell and a first connecting plate connected to the second end plate body and protruding toward the second side beam, and the first connecting plate is connected to the first connecting surface and the second connecting surface; and a management accommodating cavity for accommodating battery management components and power distribution components is defined between the first connecting surface, the second connecting surface, the cell, and the sealing cover.

74 . (canceled)

75 . The battery pack according to claim 65 , wherein the first end of the at least one of cells is provided with an explosion-proof valve, the first side beam is provided therein with an exhaust passage, an exhaust vent is provided at a position on the first side beam corresponding to the explosion-proof valve, and the exhaust vent is in communication with the exhaust passage; the second end of the cell is provided with an explosion-proof valve, the second side beam is provided therein with an exhaust passage, an exhaust vent is provided at a position on the second side beam corresponding to the explosion-proof valve, and the exhaust vent is in communication with the exhaust passage; and the battery pack is provided with an exhaust outlet in communication with the exhaust passages.

76 . The battery pack according to claim 65 , wherein the tray further comprises a third side beam and a fourth side beam disposed opposite to each other along the X direction, the third side beam and the fourth side beam provide a pressing force to the cell array.

77 . (canceled)

78 . The battery pack according to claim 76 , further comprising: a first elastic apparatus and/or a second elastic apparatus, the first elastic apparatus is elastically sandwiched between the third side beam and the cell adjacent to the third side beam, and the second elastic apparatus is elastically sandwiched between the fourth side beam and the cell adjacent to the fourth side beam.

79 . The battery pack according to claim 76 , wherein further comprising: a first side plate and/or a second side plate, wherein the first side plate is disposed between the third side beam and the cell adjacent to the third side beam, the second side plate is disposed between the fourth side beam and the cell adjacent to the fourth side beam;

wherein the first side plate comprises a side plate body disposed opposite to a side surface of the cell and a second connecting plate connected to the side plate body and protruding toward the third side beam, and the second side plate comprises a side plate body disposed opposite to a side surface of the cell and a second connecting plate connected to the side plate body and protruding toward the fourth side beam;

the third side beam is provided with a third connecting surface facing toward the sealing cover, the fourth side beam is provided with a fourth connecting surface facing toward the sealing cover; and

the first side plate is connected to the third connecting surface through the corresponding second connecting plate, and the second side plate is connected to the fourth connecting surface through the corresponding second connecting plate.

80 . (canceled)

81 . The battery pack according to claim 76 , further comprising:

a first panel and a second panel, respectively connected to upper surfaces and lower surfaces of at least a part of the cells;

a first end plate and a second end plate, respectively disposed on two end faces of at least a part of the cells;

and a first side plate and a second side plate, respectively disposed on outer sides of the outermost two cells, wherein

the first end plate, the second end plate, the first side plate, and the second side plate are all connected to the first panel and the second panel;

an inner wall surface of the first side beam facing toward the cell has a first supporting surface and a first connecting surface, an inner wall surface of the second side beam facing toward the cell has a second supporting surface and a second connecting surface, the first end of the cell is supported by the first supporting surface, the second end of the cell is supported by the second supporting surface, the first end plate is connected to the first connecting surface, and the second end plate is connected to the second connecting surface;

an inner wall surface of the third side beam facing toward the cell has a third connecting surface, an inner wall surface of the fourth side beam facing toward the cell has a fourth connecting surface; and the first side plate is connected to the third connecting surface, the second side plate is connected to the fourth connecting surface.

82 . The battery pack according to claim 47 , wherein the support member is a plurality of bottom beams, and the bottom beams are located below the cell array.

83 . The battery pack according to claim 82 , wherein the bottom beams comprise a first beam and a second beam located on and intersecting the first beam, an angle between an extension direction of the first beam and the Y direction is 60-90°, and the cells are supported by the first beam.

84 . The battery pack according to claim 83 , wherein there are two second beams, the two second beams are respectively located at two ends of the first beam and are respectively perpendicular to the first beam, and the cells are supported by the first beam;

wherein a center of the cell is located on the first beam.

85 . (canceled)

86 . The battery pack according to claim 82 , wherein the bottom beams are a plurality of rectangular beams parallel to and spaced apart from each other, an angle between an extension direction of the rectangular beam and the Y direction is 60-90°, and the cell is supported by the rectangular beam.

87 . (canceled)

88 . The battery pack according to claim 82 , wherein the support member is a vehicle chassis, and the cell array is located on the vehicle chassis.

89 . The battery pack according to claim 47 , wherein a cell placement region is formed in the battery pack, the cell array is located in the cell placement region, the battery pack comprises one cell array, and the cells extend from one side of the cell placement region to the other side of the cell placement region along the Y direction.

90 - 91 . (canceled)

92 . The battery pack according to claim 47 , wherein a cell placement region is formed in the battery pack, the cell array is located in the cell placement region, N cell arrays along the X direction are disposed in the cell placement region, the cell arrays are electrically connected to each other through connecting members between electrode terminals of cells, and N is greater than or equal to 1;

wherein an electrode terminal of the last cell of the (N−1) th cell array is connected to an electrode terminal of the first cell of the N th cell array through a connecting member.

93 . (canceled)

94 . The battery pack according to claim 47 , wherein a cell placement region is formed in the battery pack, the cell array is located in the cell placement region, the battery pack comprises M cell arrays along the Y direction, the cell arrays are electrically connected to each other through connecting members between electrode terminals of cells, and M is greater than or equal to 1;

wherein an electrode terminal of the last cell of the (M−1) th cell array is connected to an electrode terminal of the first cell of the M th cell array through a connecting member.

95 . (canceled)

96 . The battery pack according to claim 48 , wherein a cell placement region is formed in the battery pack, the cell array is located in the cell placement region, the battery pack comprises N cell arrays along the X direction and M cell arrays along the Y direction, the cell arrays are electrically connected to each other through connecting members between electrode terminals of cells, N is greater than or equal to 1, and M is greater than or equal to 1.

97 . The battery pack according to claim 47 , wherein a cell placement region is formed in the battery pack, the cell array is located in the cell placement region, the battery pack comprises J cell arrays along the Z direction the cell arrays are electrically connected to each other through connecting members between electrode terminals of cells, and J is greater than or equal to 1.

98 - 99 . (canceled)

100 . The battery pack according to claim 47 , wherein at least a part of the cells in the cell array are adhered by gluing.

101 . The battery pack according to claim 47 , wherein further comprising: a heat exchange plate, wherein the heat exchange plate is mounted on an upper surface of the cell array.

102 . (canceled)

103 . A vehicle, comprising the battery pack according to claim 47 .

104 . The vehicle according to claim 103 , wherein the battery pack is disposed at a bottom of the vehicle, and the support member is fixedly connected to a chassis of the vehicle;

wherein the vehicle comprises a battery pack disposed at a bottom of the vehicle, the Q direction, or the length direction of the minimum enclosing rectangle of the cell, or the Y direction is generally arranged along a width direction of a vehicle body of the vehicle, and the P direction, or the width direction of the minimum enclosing rectangle of the cell, or the X direction is generally arranged along a length direction of the vehicle body of the vehicle.

105 - 106 . (canceled)

107 . The vehicle according to claim 103 , wherein a dimension L′ of the cell in the Y direction and a vehicle body width W meet: 46%≤L′/W≤76%.

108 - 109 . (canceled)