Back to results
US 9,755,265 B2Granted
Anode for secondary battery and secondary battery having the same
AssigneeLG Chem, Ltd.
InventorsYo-han Kwon, Sang-Wook Woo, Je-Young Kim
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeLG Chem, Ltd.
InventorsYo-han Kwon, Sang-Wook Woo, Je-Young Kim
Estimating the term…
The present invention relates to an anode for a secondary battery, comprising at least two anode wires which are parallel to each other and spirally twisted, each of the anode wires having an anode active material layer coated on the surface of a wire-type current collector; and a secondary battery comprising the anode. The anode of the present invention has an increased surface area to react with Li ions during a charging and discharging process, thereby improving the rate characteristics of a battery, and also release stress or pressure applied in the battery, e.g., the volume expansion of active material layers to prevent the deformation of the battery and ensure the stability thereof, thereby improving the life characteristic of the battery.
An anode for a secondary battery, comprising at least two anode wires which are parallel to each other and twisted, wherein each of the at least two anode wires is a wire-type current collector having an anode active material layer coated on an entire surface thereof, wherein the anode active material layer of at least one of the anode wires is porous.
A cable-type secondary battery comprising:
An anode for a secondary battery, comprising at least two anode wires which are parallel to each other and intercrossed, wherein each of the at least two anode wires is a wire-type current collector having an anode active material layer coated on an entire surface thereof, wherein the anode active material layer of at least one of the anode wires is porous.
Dependencies are inferred from the claim text.