摘要:
Provided is a method for manufacturing an anode of a cable-type secondary battery having a solid electrolyte layer, including preparing an aqueous solution of an anode active material, making an anode by immersing a core as a current collector having a horizontal cross section of a predetermined shape and extending longitudinally in the aqueous solution, then applying an electric current to form a porous shell of the anode active material on the surface of the core, and forming a solid electrolyte layer on the surface of the anode by passing the anode through a solid electrolyte solution. The anode has a high contact area to increase the mobility of lithium ions, thereby improving battery performance. Also, the anode is capable of relieving stress and pressure in the battery, such as volume expansion during charging and discharging, thereby preventing battery deformation and ensuring battery stability.
摘要:
A cable-type secondary battery includes an electrode assembly, which has a first polarity current collector having a long and thin shape, at least two first polarity electrode active material layers formed on the first polarity current collector to be spaced apart in the longitudinal direction, an electrolyte layer filled to surround at least two first polarity electrode active material layers, at least two second polarity electrode active material layers formed on the electrolyte layer to be spaced apart at positions corresponding to the first polarity electrode active material layers, and a second polarity current collector configured to surround the outer surfaces of the second polarity electrode active material layers, the electrode assembly being continuously bent into a serpentine configuration by a space between the first polarity electrode active material layers; and a cover member configured to surround the electrode assembly which is continuously bent into a substantially a serpentine configuration.
摘要:
A cable-type secondary battery is disclosed. The cable-type secondary battery includes electrodes, each of which includes a current collector having a horizontal cross section of a predetermined shape and an active material layer formed on the surface of the current collector. The electrodes extend in the lengthwise direction and are arranged in parallel. The current collector includes a polymer core and a metal coating layer formed on the surface of the polymer core. The use of the metal-coated polymer current collectors having high flexibility and conductivity makes the secondary battery highly flexible while maintaining the performance of the secondary battery. In addition, the cable-type secondary battery can be reduced in weight.
摘要:
A cable-type secondary battery includes an electrode assembly, which has a first polarity current collector having a long and thin shape, at least two first polarity electrode active material layers formed on the first polarity current collector to be spaced apart in the longitudinal direction, an electrolyte layer filled to surround at least two first polarity electrode active material layers, at least two second polarity electrode active material layers formed on the electrolyte layer to be spaced apart at positions corresponding to the first polarity electrode active material layers, the electrode assembly being continuously bent into a serpentine configuration by a space between the first polarity electrode active material layers; a second polarity current collector configured to surround at least one side of the electrode assembly bent into a serpentine configuration; and a cover member configured to surround the second polarity current collector and the electrode assembly.
摘要:
Provided is a cable-type secondary battery including an electrode assembly having a horizontal cross section of a predetermined shape and extending longitudinally, and a wire-type outer current collector wound on the outer surface of the electrode assembly, the electrode assembly including an inner current collector, an anode active material layer, and an electrolyte layer, and a cathode active material layer; the wire-type outer current collector has excellent flexibility and a predetermined level of elasticity, and thus, improves the flexibility of the entire cable-type secondary battery and prevents a short circuit from occurring and the active material from falling off from the active material layer, due to the deformation of the cable-type secondary battery.
摘要:
Disclosed is an anode for a lithium secondary battery. The anode includes a current collector in the form of a wire and a porous anode active material layer coated to surround the surface of the current collector. The three-dimensional porous structure of the active material layer increases the surface area of the anode. Accordingly, the mobility of lithium ions through the anode is improved, achieving superior battery performance. In addition, the porous structure allows the anode to relieve internal stress and pressure, such as swelling, occurring during charge and discharge of a battery, ensuring high stability of the battery while preventing deformation of the battery. These advantages make the anode suitable for use in a cable-type secondary battery. Further disclosed is a lithium secondary battery including the anode.
摘要:
A cable-type secondary battery includes an electrode assembly, which has a first polarity current collector having a long and thin shape, at least two first polarity electrode active material layers formed on the first polarity current collector to be spaced apart in the longitudinal direction, an electrolyte layer filled to surround at least two first polarity electrode active material layers, and at least two second polarity electrode active material layers formed on the electrolyte layer to be spaced apart at positions corresponding to the first polarity electrode active material layers, the electrode assembly being continuously bent into a substantially “S” shape by a space between the first polarity electrode active material layers; and a second polarity current collector configured to surround at least one side of the electrode assembly bent into a substantially “S” shape.
摘要:
Provided is a cable-type secondary battery including an electrode assembly having a horizontal cross section of a predetermined shape and extending longitudinally, and a wire-type outer current collector wound on the outer surface of the electrode assembly, the electrode assembly including an inner current collector, an anode active material layer, and an electrolyte layer, and a cathode active material layer.The wire-type outer current collector has excellent flexibility and a predetermined level of elasticity, and thus, improves the flexibility of the entire cable-type secondary battery and prevents a short circuit from occurring and the active material from falling off from the active material layer, due to the deformation of the cable-type secondary battery.
摘要:
A method for manufacturing a cable-type secondary battery includes: preparing a first polarity current collector having a long and thin shape; forming at least two first polarity electrode active material layers on the first polarity current collector to be spaced apart from each other in the longitudinal direction; forming an electrolyte layer to surround at least two first polarity electrode active material layers; forming at least two second polarity electrode active material layers on the electrolyte layer to be spaced apart from each other at positions corresponding to the first polarity electrode active material layers; forming an electrode assembly by surrounding the second polarity electrode active material layers with a second polarity current collector; surrounding the electrode assembly with a cover member; and bending the electrode assembly and the cover member into a substantially “S” shape with respect to a space between the first polarity electrode active material layers.
摘要:
A method for manufacturing a cable-type secondary battery includes: preparing a first polarity current collector having a long and thin shape; forming at least two first polarity electrode active material layers on the first polarity current collector to be spaced apart from each other in the longitudinal direction; forming an electrolyte layer to surround the at least two first polarity electrode active material layers; forming at least two second polarity electrode active material layers on the electrolyte layer to be spaced apart from each other at positions corresponding to the first polarity electrode active material layers; forming an electrode assembly by surrounding the second polarity electrode active material layers with a second polarity current collector; surrounding the electrode assembly with a cover member; and bending the electrode assembly and the cover member into a serpentine configuration with the active regions spaced apart from one another.