Disclosed is a unit battery for manufacture of battery modules or battery packs, the unit battery including an electrode assembly mounted in a cell case, the electrode assembly being capable of being reversibly charged and discharged, a positive electrode body portion, to which a positive electrode of the electrode assembly is connected, the positive electrode body portion being configured to serve as a positive electrode terminal for external connection while forming one surface of the cell case, a negative electrode body portion, to which a negative electrode of the electrode assembly is connected, the negative electrode body portion being configured to serve as a negative electrode terminal for external connection while forming the other surface of the cell case, and an insulation portion configured to electrically insulate the positive electrode body portion and the negative electrode body portion from each other.

One aspect of the present disclosure relates to a secondary battery lamination device, and more particularly, the secondary battery lamination device includes an infrared LED heat source portion including a plurality of individually controllable infrared LED lamps and a pressurizing portion, thereby manufacturing a battery with improved uniformity of adhesive strength and air permeability between the positive electrode, the separator, and the negative electrode.

One aspect of the present disclosure relates to a secondary battery lamination device, and more particularly, the secondary battery lamination device includes an infrared LED heat source portion including a plurality of individually controllable infrared LED lamps and a pressurizing portion, thereby manufacturing a battery with improved uniformity of adhesive strength and air permeability between the positive electrode, the separator, and the negative electrode.

The composite particles for a non-aqueous electrolyte rechargeable battery are surface-treated composite particles including metal hydroxide particles and conductive particles, wherein a volume resistivity of the composite particles at the time of about 60 MPa pressurization is greater than or equal to about 0.10 Ωcm and less than or equal to about 4 × 10.sup.4 Ωcm, an endothermic amount of the composite particles between about 50° C. to about 250° C. in differential scanning calorimetry is greater than or equal to about 150 J/g and less than or equal to about 500 J/g, and an amount of desorbed P.sub.2 (MS1) of the composite particles from about 80° C. to about 1400° C. by thermal desorption gas mass spectrometry (TDS-MS) is greater than or equal to about 300 × 10.sup.-6 mol/g and less than or equal to about 3000 × 10.sup.-6 mol/g.

A battery interconnection system incorporating a temperature control mechanism having a first battery cell and a second battery cell is provided. The first battery cell has an electrically positive tab and an electrically negative tab. The second battery cell has an electrically positive tab and a electrically negative tab. The electrically positive tab of the first battery cell couples with the electrically positive tab of the second battery cell. Moreover, the electrically negative tab of the first battery cell couples with the electrically negative tab of the second battery cell. The first battery cell includes a cathode electrically coupled with the electrically positive tab of the first battery cell and the second battery cell includes a cathode electrically coupled with the electrically positive tab of the second battery cell. The first battery cell also has an anode electrically coupled with the a electrically negative tab of the first battery cell and the second battery cell has an anode electrically coupled with the electrically negative tab of the second battery cell.

A secondary battery includes a separator in an electrode assembly thereof that has a sealing part for individually sealing a positive electrode and a negative electrode and has a double sealing structure. The double sealing structure including a first sealing part and a second sealing part so that an accommodation part for accommodating a fire extinguishing agent is provided at an end part of the negative electrode. Further, the secondary battery includes a flame propagation prevention part disposed on an outer surface of the electrode assembly so that a flame generated during thermal runaway of the secondary battery can be blocked in a stage in which the electrode assembly is positioned inside the battery cell, and thus a longer flame propagation time can be induced.

A secondary battery includes a separator in an electrode assembly thereof that has a sealing part for individually sealing a positive electrode and a negative electrode and has a double sealing structure. The double sealing structure including a first sealing part and a second sealing part so that an accommodation part for accommodating a fire extinguishing agent is provided at an end part of the negative electrode. Further, the secondary battery includes a flame propagation prevention part disposed on an outer surface of the electrode assembly so that a flame generated during thermal runaway of the secondary battery can be blocked in a stage in which the electrode assembly is positioned inside the battery cell, and thus a longer flame propagation time can be induced.

Lithium-based and sodium-based batteries and capacitors using metal foil current collectors, coated with porous layers of particles of active electrode materials for producing an electric current, may adapted to produce heat for enhancing output when the cells are required to periodically operate during low ambient temperatures. A self-heating cell may be placed in heat transfer contact with a working cell that is temporarily in a cold environment. Or one or both of the anode current collector and cathode current collectors of a heating cell may be formed with shaped extended portions, uncoated with electrode materials, through which cell current may be passed for resistance heating of the extended current collector areas. These extended current collector areas may be used to heat the working area of the cell in which they are incorporated, or to contact and heat an adjacent working cell.

A marine battery pack including an enclosure defining a cavity, a plurality of cell modules within the cavity, each comprising a plurality of battery cells, and at least one sensor configured to sense at least one of a temperature, a pressure, a presence of water, and a gas content within the cavity. A controller is configured to detect an event warranting decommission of the battery pack based on the temperature, the pressure, the presence of water, and/or the gas content within the cavity, and then to automatically operate a pump to intake water from outside of the enclosure and pump water through the cavity from an inlet port in the enclosure to an outlet port in the enclosure so as to cool the plurality of battery cells.

A rechargeable lithium air battery is provided. The battery contains a ceramic separator forming an anode chamber, a molten lithium anode contained in the anode chamber, an air cathode, and a non-aqueous electrolyte. The cathode has a temperature gradient comprising a low temperature region and a high temperature region, and the temperature gradient provides a flow system for reaction product produced by the battery.