Cable-type secondary battery capable of wireless charge
AssigneeLG Chem, Ltd.
InventorsYo-Han Kwon, Sang-Wook Woo, Hye-Ran Jung, Je-Young Kim
Life of this patent
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Abstract
The present invention provides a cable-type secondary battery capable of wireless charge. The cable-type secondary battery according to the present invention can be applied in a wireless charging method, thereby being conveniently charged as compared with conventional batteries which are charged with wires, and has a charging coil configured in a wound form, which can overcome the problem of local charge caused by the shape of conventional cable-type batteries. Also, the charging coil is formed in a packaging to act as a reinforcement material, thereby enhancing the mechanical property of the cable-type secondary battery.
Claims28
A cable-type secondary battery capable of wireless charge, configured to have a horizontal cross section of a predetermined shape and to extend longitudinally and comprising:
- a core for supplying lithium ions, which comprises an electrolyte;
- an inner electrode comprising an open-structured inner current collector surrounding the outer surface of the core for supplying lithium ions, and an inner electrode active material layer surrounding the surface of the inner current collector;
- a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes;
- an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector;
- and
- a packaging surrounding the outer surface of the outer electrode and comprising a heat-shrinkable tube layer and a charging coil configured in a wound form, the charging coil comprising a diode which electrically connects the inner current collector and the outer current collector therebetween, and the charging coil being electrically connected with the outer current collector at one end thereof and electrically connected with the inner current collector at the other end thereof.
A cable-type secondary battery capable of wireless charge, configured to have a horizontal cross section of a predetermined shape and to extend longitudinally and comprising:
- two or more cores for supplying lithium ions, which comprise an electrolyte;
- two or more inner electrodes arranged in parallel to each other, each inner electrode comprising an open-structured inner current collector surrounding the outer surface of each core for supplying lithium ions, and an inner electrode active material layer surrounding the surface of the inner current collector;
- a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes;
- an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector;
- and
- a packaging surrounding the outer surface of the outer electrode and comprising a heat-shrinkable tube layer and a charging coil configured in a wound form, the charging coil comprising a diode which electrically connects the inner current collector and the outer current collector therebetween, and the charging coil being electrically connected with the outer current collector at one end thereof and electrically connected with the inner current collector at the other end thereof.
A cable-type secondary battery capable of wireless charge, configured to have a horizontal cross section of a predetermined shape and to extend longitudinally and comprising:
- two or more cores for supplying lithium ions, which comprise an electrolyte;
- two or more inner electrodes arranged in parallel to each other, each inner electrode comprising an open-structured inner current collector surrounding the outer surface of each core for supplying lithium ions, an inner electrode active material layer surrounding the surface of the inner current collector, and a separation layer surrounding the outer surface of the inner electrode active material layer to prevent a short circuit between electrodes;
- an outer electrode surrounding the outer surface of the inner electrodes and comprising an outer electrode active material layer and an outer current collector;
- and
- a packaging surrounding the outer surface of the outer electrode and comprising a heat-shrinkable tube layer and a charging coil configured in a wound form, the charging coil comprising a diode which electrically connects the inner current collector and the outer current collector therebetween, and the charging coil being electrically connected with the outer current collector at one end thereof and electrically connected with the inner current collector at the other end thereof.
Dependencies are inferred from the claim text.