摘要:
The present invention relates to an electrode lead for a rechargeable battery, wherein a corrosion-preventing protection layer is selectively formed on only that portion of the electrode lead which is positioned outside the cell, and relates to a rechargeable battery comprising the same. When the present invention is employed, it is possible to reduce the resistance of the cell while at the same time preventing corrosion of the electrode lead from an external environment, by forming the corrosion-preventing protective layer selectively on only that portion of the electrode lead which is positioned outside the cell.
摘要:
The present invention relates to an electrical element having a novel structure whereby safety is improved, and, more specifically, relates to an electrical element having a novel structure adapted to solve problems such as heat generation, ignition or explosion which can happen due to factors such as penetration of the electrical element by sharp, needle-shaped objects.
摘要:
The present invention relates to a pouch-type secondary battery having improved stability, and more particularly to a pouch-type secondary battery which is designed such that the shape of the pouch is changeable to disconnect the connection parts between an electrode lead and an electrode tab when the internal pressure of the pouch rises due to excessive charging or the like, and a battery pack including the same. The present invention can significantly increase the lifetime and stability of a pouch-type secondary battery, without the need for additional materials, devices, or the like in the manufacturing of the secondary battery, by fundamentally interrupting the current flow when gas is generated in the secondary battery, and the present invention can provide a pouch-type secondary battery capable of being low cost, light weight, and a battery that is easily changeable in shape, etc.