摘要:
A lithium secondary battery, and more particularly, a lithium secondary battery which can improve the impregnation of an electrolyte solution either by modifying the material of a protection layer, such as a laminating tape and others, to be formed to protect the elimination of active materials, into a material with an affinity for the electrolyte solution, or by coating the material of an existing protection layer with an ingredient with an affinity for the electrolyte solution.
摘要:
A lithium secondary battery, and more particularly, a lithium secondary battery which can improve the impregnation of an electrolyte solution either by modifying the material of a protection layer, such as a laminating tape and others, to be formed to protect the elimination of active materials, into a material with an affinity for the electrolyte solution, or by coating the material of an existing protection layer with an ingredient with an affinity for the electrolyte solution.
摘要:
A lithium ion secondary battery in which an electrode assembly is easily impregnated with an electrolyte is provided. The lithium ion secondary battery includes an electrode assembly wrapped by a sealing tape, an upper insulating plate positioned on the top of the electrode assembly, a lower insulating plate positioned at the bottom of the electrode assembly, a case for accommodating the electrode assembly, and a cap assembly for sealing the case. In one embodiment, the upper insulating plate has holes which may include a form of a mesh. In another embodiment, the lower insulating plate has various shapes of recesses on the surface. The surface of the lower insulating plate may be coated with a material that has an affinity for the electrolyte. An inner surface of the case may have various shapes of recesses or grooves. The sealing tape may be coated with a material that has an affinity for an electrolyte. Therefore, according to the principles of the present invention, the electrode assembly is easily impregnated with the electrolyte, and overall performance of the lithium ion secondary battery is improved.
摘要:
A lithium ion secondary battery in which an electrode assembly is easily impregnated with an electrolyte is provided. The lithium ion secondary battery includes an electrode assembly wrapped by a sealing tape, an upper insulating plate positioned on the top of the electrode assembly, a lower insulating plate positioned at the bottom of the electrode assembly, a case for accommodating the electrode assembly, and a cap assembly for sealing the case. In one embodiment, the upper insulating plate has holes which may include a form of a mesh. In another embodiment, the lower insulating plate has various shapes of recesses on the surface. The surface of the lower insulating plate may be coated with a material that has an affinity for the electrolyte. An inner surface of the case may have various shapes of recesses or grooves. The sealing tape may be coated with a material that has an affinity for an electrolyte. Therefore, according to the principles of the present invention, the electrode assembly is easily impregnated with the electrolyte, and overall performance of the lithium ion secondary battery is improved.
摘要:
The present invention provides an anode for a lithium rechargeable battery, a lithium rechargeable battery including the same, and a method of fabricating the lithium rechargeable battery. An antigelling agent is added in an anode slurry to prevent gelation, and the anode of the present invention is made with the antigelling agent added anode slurry. During fabrication of the anode by using a lithium nickel-based or manganese-based composite oxide for an anode active material, gelation is prevented. A lithium rechargeable battery made with the anode of the present invention shows a high capacity and excellent stability and reliability.
摘要:
The present invention provides a positive electrode for a lithium rechargeable battery, a lithium rechargeable battery including the same, and a method of fabricating the lithium rechargeable battery. An antigelling agent is added in a positive electrode slurry to prevent gelation, and the positive electrode of the present invention is made with the antigelling agent added positive electrode slurry. During fabrication of the positive electrode by using a lithium nickel-based or manganese-based composite oxide for a positive electrode active material, gelation is prevented. A lithium rechargeable battery made with the positive electrode of the present invention shows a high capacity and excellent stability and reliability.
摘要:
Electrode assemblies easily impregnated with an electrolyte are provided. A sealing tape attached to the outer circumference of the electrode assembly comprises a material having an affinity for the electrolyte. Alternatively, the entire sealing tape or a portion of the tape is coated with the material. In another alternative, the surface of the sealing tape is rough, thereby improving wetting of the tape by the electrolyte and diffusion of the electrolyte into the tape. In another embodiment, first and second insulating plates comprise a material having an affinity for the electrolyte. In another alternative, the insulating plates comprise a mixture of a material having an affinity for the electrolyte and polypropylene or polyethylene. Alternatively, the surfaces of the insulating plates are coated with the material or with a surfactant that reduces the surface tension of the electrolyte.
摘要:
A center pin and a lithium ion secondary battery are provided. The center pin has a hollow body and a solid extinguishant is disposed inside the hollow body. The solid extinguishant has a certain shape that can fit into the hollow body, and can be made by compressing a powder extinguishing substance. Top and bottom of the center pin are initially closed by blocking members to reduce a dead volume in a battery. The top and bottom of the center pin open at high temperature so that the solid extinguishant is liquefied and flows out of the center pin. The liquefied extinguishant at the high temperature prevent the battery from igniting.
摘要:
A center pin for a secondary battery, and a secondary battery including the same, are disclosed. The center pin is capable of efficiently preventing generation of heat, ignition and explosion of the secondary battery as may be caused by overcharge or exposure to high temperatures. The center pin comprises a body having a predetermined length, a fluid inserted into the body, and sealing members for sealing the body. The secondary battery comprises an electrode assembly including a positive electrode plate, a negative electrode plate and a separator interposed between the positive electrode plate and the negative electrode plate, a center pin comprising a fluid disposed in the electrode assembly, a can accommodating the electrode assembly and the center pin, and a cap assembly sealing the can.
摘要:
Electrode assemblies easily impregnated with an electrolyte are provided. A sealing tape attached to the outer circumference of the electrode assembly comprises a material having an affinity for the electrolyte. Alternatively, the entire sealing tape or a portion of the tape is coated with the material. In another alternative, the surface of the sealing tape is rough, thereby improving wetting of the tape by the electrolyte and diffusion of the electrolyte into the tape. In another embodiment, first and second insulating plates comprise a material having an affinity for the electrolyte. In another alternative, the insulating plates comprise a mixture of a material having an affinity for the electrolyte and polypropylene or polyethylene. Alternatively, the surfaces of the insulating plates are coated with the material or with a surfactant that reduces the surface tension of the electrolyte.