A battery cover including a main body, an opening/closing part provided on the main body, a flexible rib having a locking projection provided on the opening/closing part, an abutting rib provided on the main body, which has a locking recess to be engaged with the locking projection while the opening/closing part is opened to the main body, a contact portion that abuts on the locking projection and deflects the flexible rib when the opening/closing part is opened to the main body, and a flat portion provided on the contact portion, which abuts on the locking projection first when the opening/closing part is opened to the main body and extends in the direction orthogonal to the direction of force input when abutting on the locking projection.

The disclosed technology relates to a battery utilizing an indicator to orient an unopposed portion of a cathode or anode with respect to a battery can, and a tag to generate an electromagnetic field to mitigate or eliminate an electromagnetic field generated by the unopposed portion of the cathode or anode. The battery includes a wound set of layers including a cathode, an anode, and a separator; a can housing the wound set of layers; a lid disposed atop of the can to enclose the wound set of layers within the can; and a tag coupled to the lid. An unopposed portion of the cathode or anode generates a first electromagnetic field. The tag generates a second electromagnetic field to oppose the first electromagnetic field.

A battery assembly comprises a battery and a battery monitor. The battery has a cover, a post terminal, and a battery near field communication (NFC) device. The battery NFC device is disposed within the cover adjacent the post terminal. The battery monitor is removably attachable to the post terminal and has a monitor NFC device communicating with the battery NFC device.

A battery or an accumulator including an anode case, an anode situated inside the anode case, a cathode case joined to the anode case, a seal sealing the cathode case to the anode case, a cathode situated inside the cathode case between the anode and the cathode case, and a membrane between the anode and the cathode. An outer surface of the battery includes at least one marking.

A battery terminal cover (1) is mounted on a battery (2) to be installed in a vehicle and includes a body (10) to be fixed to the battery (2), a movable portion (20) coupled to the body (10) via hinges (50) and rotatably displaceable to a shielding position to cover a screw member bolt (6) mounted on the battery (2) and an open position to be overlapped on the body portion (10), and a tool restricting portion (30) provided on the movable portion (20) and configured to restrict the rotation of a tool (T) by interfering with the tool before the tool rotated about the screw member (6) contacts the vehicle with the movable portion (20) set at the open position.

The present invention relates to a secondary battery and an apparatus and method for measuring a dimension of the secondary battery. The secondary battery according to the present invention comprises: an electrode assembly in which an electrode and a separator are alternately laminated to be combined with each other; a pouch accommodating the electrode assembly therein; and a fluorescent reference marker applied to a portion of an outer surface of the pouch and comprising a fluorescent material, wherein the fluorescent reference marker emits fluorescence when an electromagnetic wave is irradiated so that the fluorescent reference marker serves as a reference point for measuring a dimension of the secondary battery.

The present invention provides an electrode assembly, in which a plurality of electrodes are laminated, and a separator is inserted between adjacent electrodes. The outermost electrode disposed at an outermost layer of the electrode assembly includes a slurry applied to one surface of a current collector, and a protection layer adhered to the other surface of the current collector. Further, the outermost electrode is laminated to allow the slurry to contact the separator.

Furthermore, a method for manufacturing the electrode assembly comprises applying a slurry to one surface of a current collector and laminating a protection layer on the other surface of the current collector to form an outermost electrode; allowing the outermost electrode to pass between a pair of press-rollers to perform a rolling process; and laminating the rolled outermost electrode to be disposed on an uppermost layer or a lowermost layer of the electrode assembly.

A battery pack transport system includes a battery pack and a protective member assembled on the battery pack for preventing the battery pack from damage during shipping. The battery pack includes two battery cell groups each having a positive electrode and a negative electrode and a female connector electrically connected to two battery cell groups to connect two battery cell groups in parallel. The protective member engages with the female connector to change two battery cell groups from parallel connected state to isolated state.

A battery pack includes one or more battery cells including a plurality of electrode tabs, a protective circuit module connected to the electrode tabs of the one or more battery cells, a frame accommodating the battery cells and the protective circuit module, and a protective tape covering the protective circuit module and the electrode tabs, a first surface of the protective tape including a plurality of grooves corresponding to the electrode tabs.

A pressure sensitive adhesive sheet for batteries that includes a base material and a pressure sensitive adhesive layer provided on one surface side of the base material and containing inorganic fine particles. When D50 and D90 are defined as a volume-based accumulated 50% particle diameter of the inorganic fine particles and a volume-based accumulated 90% particle diameter of the inorganic fine particles, respectively, in a particle size distribution of the inorganic fine particles in the pressure sensitive adhesive layer, the D50 is 0.5 m or more and 2.8 m or less, and the ratio of the D90 to the D50 (D90/D50) is 1.3 or more and 2.0 or less. The particle size distribution is measured by image analysis on a surface of the pressure sensitive adhesive layer opposite to the base material.