Abstract: The present invention refers to a coolant distributor for a battery module housing with a hollow profile enclosing a coolant channel and a plurality of coolant junctions, each extending through a first portion of the hollow profile and providing a fluid connection between the coolant channel and a coolant port. The invention further relates to a battery module housing with a bottom plate comprising a plurality of embedded coolant ducts and a coolant distributor according to the invention that is welded to the bottom plate, such that each of the plurality of coolant ports is aligned with one of a plurality of inlet openings of the coolant ducts. The present invention further relates to a battery system housing, comprising a plurality of battery module housings according to the invention and a plurality of pipe couplings for interconnecting adjacent battery module housings, and to the pipe coupling.

Abstract: Provided is a battery pack including a switching member capable of smoothly sliding in a slide section while having a high fixing strength at an ON and/or OFF switching fixing terminal. In one embodiment, the battery pack includes a housing including a case and a cover coupled to the case, and a switching member inserted into the housing and including a sliding plate having a concave part formed on at least one of outer surfaces and a knob formed on an outer surface of the sliding plate, wherein the cover includes a first extension part extending to face an inner surface of the sliding plate and an interference part extending from the first extension part so as to make surface-contact with at least a portion of the outer surface of the sliding plate, and a hole through which the knob slides is formed on a sidewall of the case.

Abstract: A method of manufacturing a secondary battery is disclosed. In one aspect, a method of manufacturing a secondary battery includes assembling the secondary battery by receiving an electrode assembly including a first pole plate, a second pole plate and a separator between the first and second pole plates, along with an electrolyte, in a battery case. The method further includes precharging the secondary battery, leaving the secondary battery at room temperature and performing first charging and first discharging of the secondary battery.

Abstract: There is provided a secondary battery which can implement a high-density electrode plate and prevent fracture of the electrode plate. The secondary battery includes a metallic base material, a first active material coated on one surface of the metallic base material, and a second active material coated on the other surface of the metallic base material. In the secondary battery, the difference in loading level between the first and second active materials ranges from 2 mg/cm2 to 10 mg/cm2.

Abstract: A secondary battery includes a first electrode plate, a second electrode plate and a separator. The first electrode plate has a plurality of first active material coating portions formed by intermittently coating a first active material on a base material, and a first non-coating portion at which the first active material is not coated on the base material. The second electrode plate has a second active material coating portion formed by coating a second active material on a base material, and a second non-coating portion at which the second active material is not coated on the base material. The separator is interposed between the first and second electrode plates.

Abstract: An electrode fabricating apparatus for a rechargeable battery according to the present invention includes: a vacuum chamber having an inner space; and a lithium depositor receiving a lithium source and having an evaporation unit heating and evaporating the lithium source, and a nozzle unit positioned on the evaporation unit and controlling an aperture ratio to control a deposition amount of lithium.

Abstract: A battery cell assembly and a method of manufacturing the same. The battery cell assembly includes a plurality of battery cells including anode terminals and cathode terminals, a plurality of lead tabs disposed on at least one of the anode terminal and the cathode terminal of each battery cell, wherein a groove is formed in each lead tab, and a lead plate disposed on top portions of the plurality of lead tabs, the lead plate including a connector contacting the plurality of lead tabs and a through hole formed in a position corresponding to the groove of the lead tab.

Abstract: A battery cell balancing system is disclosed. In one embodiment, the system includes a plurality of battery cells arranged in series and a power supply configured to receive the cumulative voltage of the battery cells and output a first charging voltage to one of the battery cells that has a voltage less than a reference voltage. According to one embodiment, it is possible to implement a cell balancing operation using the cumulative voltage of the battery cells.

Abstract: A method of charging a battery and a battery pack utilizing the same, is disclosed. The method enhances the battery life characteristic of a battery cell by varying the charging parameters (e.g., charging voltage, charging current, rate of charge, relative state of charge, and battery capacity) based a temperature of or around the battery cell is in a normal, extended, or abnormal temperature range when the battery cell is fully charged. The charging method includes determining whether a battery cell is being charged, and if the battery cell is being charged, determining whether the battery cell is fully charged; if the battery cell is fully charged, determining whether a temperature of or around the battery cell is in a normal range or in an extended range; and if the temperature is in the normal range, selecting a first charging parameter set, and if the temperature is in the extended range, selecting a charging condition of the battery cell as a second set value.

Abstract: A battery module including a plurality of unit cells, a plurality of bus bars electrically connecting the plurality of unit cells, a positive electrode terminal and a negative electrode terminal that are electrically connected and in contact with two ends of the plurality of unit cells, a battery housing accommodating the plurality of unit cells and the bus bars, and detection terminals that are respectively electrically connected to the plurality of bus bars, wherein the detection terminals are exposed outside the battery housing. Accordingly, voltage balancing between the unit cells may be controlled without disassembling the battery module.

Abstract: A secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate and a separator interposed therebetween; and a battery case in which the electrode assembly is accommodated. The first electrode plate is composed of a first coated portion having a first active material coated on a first substrate and a first non-coated portion. The second electrode plate is composed of a second coated portion having a second active material coated on a second substrate and a second non-coated portion. In the secondary battery, the section of a boundary portion between the first or second coated portion and the first or second non-coated portion is inclined.

Abstract: A battery pack is constructed with a rechargeable battery, a protection circuit part that protects the battery when the battery is charged and discharged, and a switching unit that turns on or off a power source of the protection circuit part. Also, the battery pack may be constructed with a rechargeable battery, a protection circuit part that protects the battery when the battery is charged and discharged, and electric wiring lines constructed so that the power source of the protection circuit part may be turned on and off. When the battery pack is not connected to a charger or a load by the switching unit or the electric wire lines, the power source of the circuit is blocked to prevent the battery pack from being shorted and to reduce the idle power. When the battery pack is connected to the charger or the load, the power source is applied to the circuit so that the circuit operates.

Abstract: A secondary battery includes a jelly roll including a positive and negative electrode plates respectively having positive and negative electrode non-coating portions and at least one separator; positive and negative electrode terminals each having a contact portion, an electrode terminal and an extending portion; elastic members respectively provided between the positive and negative electrode non-coating portions and the contact portions; an outer case that accommodates the jelly roll and the terminal portions in the state that the outer case is connected to the negative electrode terminal portion; a cap plate that seals the outer case; a support portion that supports and insulates the contact portion of each of the terminal portions respectively provided at both ends of the jelly roll; and a positive lead provided in the state that the positive electrode lead is insulated from the cap plate, and electrically connected to the positive electrode terminal portion.