摘要:
Disclosed herein is a battery cell configured to have a structure in which an electrode assembly, including positive electrodes, negative electrodes, and separators disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case, wherein the battery case includes an upper case and a lower case, the upper case being provided with a first receiving part, in which the electrode assembly is received, the lower case being provided with a second receiving part, in which the electrode assembly is received, the first receiving part and the second receiving part being configured to have structures of different sizes, and the electrode assembly has an external shape corresponding to internal shapes of the first receiving part and the second receiving part.
摘要:
Disclosed herein is a battery cell configured to have a structure in which an electrode assembly, including positive electrodes, negative electrodes, and separators disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case made of a laminate sheet including a resin layer and a metal layer, wherein the battery case is made of a one-unit member, which is bent to form an upper case and a lower case, at least one of the upper and lower cases is provided with a receiving part, in which the electrode assembly is mounted, the receiving part having a round corner formed at at least one side edge thereof, and sealed portions, which are formed at the upper case and the lower case by thermal welding, are located at an upper side of the battery case at which at least one electrode terminal is located, a first lateral side of the battery case adjacent to the upper side, and a lower side of the battery case opposite to the upper side, and a second lateral side of the battery case adjacent to the upper side is formed by a bent structure of the battery case.
摘要:
Disclosed herein is a battery cell configured to have a structure in which an electrode assembly, including positive electrodes, negative electrodes, and separators disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case, wherein the electrode assembly is provided at one and/or the other of opposite surfaces thereof adjacent to electrode terminals, among outer surfaces thereof, with a depression having an outwardly increasing size.
摘要:
Disclosed herein is an electric device having a curved structure formed at at least one position of an outside thereof, wherein at least one secondary battery having an external appearance corresponding to a shape of the curved structure is mounted at the position of the electric device at which the curved structure is formed and wherein the secondary battery is a battery cell having an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode mounted in a battery case or a battery pack having the battery cell mounted in a pack case.
摘要:
Disclosed herein is an electrode assembly configured to have a structure in which one bi-cell and at least one monocell are folded in a state in which the bi-cell and the monocell are arranged on a continuous separation film, the bi-cell is a unit cell configured to have a structure in which at least one cathode and at least one anode are stacked in a state in which a separator is disposed between the cathode and the anode, types of the electrodes located at opposite surfaces of the bi-cell are the same, and the bi-cell is placed on a folding start region of the separation film, the monocell is a unit cell configured to have a structure in which at least one cathode and at least one anode are stacked in a state in which a separator is disposed between the cathode and the anode, types of the electrodes located at opposite surfaces of the monocell are different from each other, the monocell has a length equivalent to n times (where, n being an integer equal to or greater than 2) a width w of the bi-cell, and the monocell is arranged at a position at which the monocell is spaced apart from the bi-cell by a length equivalent to the width w of the bi-cell such that an electrode of the monocell opposite to the electrodes of the bi-cell at the opposite surfaces of the bi-cell faces upward, and the monocell is bent by a unit length equivalent to the width w of the bi-cell in the folded state.
摘要:
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 an asymmetric structure with respect to a central axis crossing the electrode assembly in plane is formed at a portion of at least one side of the electrode assembly constituting the outer circumference of the electrode assembly.