Abstract: A flexible battery includes an electrode group including a first electrode and a second electrode, a pair of electrode leads connected to the first electrode and the second electrode, respectively and a housing that accommodates the electrode group.

Abstract: An electrode assembly according to the present disclosure includes one or more unit cells each equipped with a pair of electrodes having different polarities with a separator interposed therebetween, an electrode mixture coated on one or both surfaces of the pair of electrodes, and electrode tabs located on the edges of the respective electrodes and not coated with the electrode mixture, and the electrode tabs include an electrode parallel connection tab and an electrode lead connection tab, and any one or more of the electrode parallel connection tab and the electrode lead connection tab are formed on the electrodes, and an outermost electrode is a negative electrode.

Abstract: A battery pouch that is formed to accommodate an electrode assembly, comprising: a first member layer; and a second member layer that is located between the first member layer and the electrode assembly, and contains an elastomer and protrudes toward the electrode assembly at a plurality of locations to be brought into discontinuous contact with the electrode assembly, wherein the second member layer has spaces open to the electrode assembly between the protruding portions. Accordingly, the power output characteristics of the battery can be improved and the damage to the damage to the sealing portion can be prevented.

Abstract: A wearable accessory, comprising: a device mounting part configured to be coupled with a device; and a body-coupled part formed to extend from the device mounting part along a lengthwise direction, wherein the body-coupled part includes: a flexible cell equipped with an electrode assembly, a casing that accommodates therein the electrode assembly, and a cell terminal connected to the electrode assembly and protruding from an opposite side of a side adjacent to the device mounting part; a connection circuit extending by being connected to a main circuit module formed on the device or the device mounting part; and a protection circuit module configured to connect the cell terminal and the connection circuit to each other and block an electrical connection between the cell terminal and the connection circuit when damage of the protection circuit module occurs by external force.

Abstract: A flexible battery may include: a first electrode assembly including one or more unit cells, each having a pair of electrodes with a separator interposed therebetween; a single electrode; and a second electrode assembly connected to the first electrode assembly or to the single electrode and including a single electrode and a separator covering a top and bottom of the single electrode of the second electrode assembly.

Abstract: A flexible battery may include: an electrode assembly having one or more unit cells each of the unit cells including a pair of electrode plates having different polarities, a separator interposed between the respective electrode plates and electrode tabs that protrude from the respective electrode plates; a pair of electrode leads connected to electrode tabs; and a strengthening tab fixed on any one electrode lead connection tab among the electrode tabs.