Battery cell of stair-like structure
First Claim
1. A battery cell configured to have a structure in which an electrode assembly comprising a separator disposed between a cathode and an anode is mounted in a battery case, whereinthe battery case comprises an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted,the electrode assembly comprises a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes,the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly, andthe electrode assembly includes two or more electrode groups, the two or more electrode groups being of different types selected from the group consisting of:
- a first electrode group having a laminated structure in which a cathode plate, a separator plate, an anode plate, and another separator plate are laminated while being sequentially stacked,a second electrode group having a laminated structure in which an anode plate, a separator plate, a cathode plate, and another separator plate are laminated while being sequentially stacked,a third electrode group having a laminated structure in which a cathode plate, an anode plate, and separator plates are laminated while being stacked such that the two of the separator plates are located at the outermost sides of the stacked structure, anda fourth electrode group having a laminated structure in which a cathode plate, an anode plate, and a separator plate are laminated while being stacked such that the separator plate is disposed between the cathode plate and the anode plate.
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0 Petitions
Accused Products
Abstract
Disclosed herein is a battery cell configured to have a structure in which an electrode assembly including a separator disposed between a cathode and an anode is mounted in a battery case, wherein the battery case includes an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted, the electrode assembly includes a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes, and the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly.
34 Citations
22 Claims
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1. A battery cell configured to have a structure in which an electrode assembly comprising a separator disposed between a cathode and an anode is mounted in a battery case, wherein
the battery case comprises an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted, the electrode assembly comprises a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes, the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly, and the electrode assembly includes two or more electrode groups, the two or more electrode groups being of different types selected from the group consisting of: -
a first electrode group having a laminated structure in which a cathode plate, a separator plate, an anode plate, and another separator plate are laminated while being sequentially stacked, a second electrode group having a laminated structure in which an anode plate, a separator plate, a cathode plate, and another separator plate are laminated while being sequentially stacked, a third electrode group having a laminated structure in which a cathode plate, an anode plate, and separator plates are laminated while being stacked such that the two of the separator plates are located at the outermost sides of the stacked structure, and a fourth electrode group having a laminated structure in which a cathode plate, an anode plate, and a separator plate are laminated while being stacked such that the separator plate is disposed between the cathode plate and the anode plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A kit including:
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a battery cell configured to have a structure in which an electrode assembly comprising a separator disposed between a cathode and an anode is mounted in a battery case, wherein the battery case comprises an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted, the electrode assembly comprises a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes, and the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly; and a stair-like press member shaped to correspond to at least two of the stair-like steps.
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Specification