Cylindrical lithium-ion battery
A lithium-ion battery, cylindrical technology, applied in the field of lithium-ion batteries, can solve the problems of too low and high battery temperature
Pending Publication Date: 2019-06-07
长沙聚能充新能源有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the present invention provides a cylindrical lithium-ion battery, which can effectively solve the problems of excessively high or low temperature of the battery
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0053] The technical solution of the present invention is: a cylindrical lithium ion battery, which includes a cylindrical shell, a positive cover plate, a negative cover plate, a positive pole pole, a negative pole pole and an electric core, and the positive pole cover plate and the negative pole cover plate are respectively fixedly installed at both ends of the casing, the positive pole and the negative pole are respectively arranged on the positive cover plate and the negative cover plate; The negative electrode sheet, the separator and the positive electrode sheet are stacked in sequence and then wound into a cylindrical shape; the positive electrode sheet is connected with a positive electrode ear, which is connected with the positive pole pole; the negative electrode sheet is connected with a negative electrode ear, which is connected with the negative p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a cylindrical lithium-ion battery, which comprises a cylindrical housing, a positive cover plate, a negative cover plate, a positive pole column, a negative pole column and anelectric core, wherein the negative pole piece includes a negative current collector and a negative active material layer coated on the negative current collector, the positive pole piece or / and thenegative pole piece is / are provided with heat conducting and collecting bodies, and the heat conducting and collecting bodies are parts uncoated with the active material layer on the front or / and theback of the positive current collector or / and the negative current collector, at least two heat conducting and collecting bodies are vertically laminated in the same area to form a heat flow concentration channel for heat conduction and collection so as to form an incoming and outgoing heat flow concentration channel for heat energy of the electric core, the heat flow concentration channel is laminated or connected with a fluid flow channel component, and both the inlet and outlet of a fluid flow channel are set on the cylindrical surface. The cylindrical lithium-ion battery can effectively solve the problems that the battery temperature is too high or too low and the like.
Description
(1) Technical field [0001] The invention relates to a lithium ion battery, in particular to a cylindrical lithium ion battery. (2) Background technology [0002] Transportation brings double pressure on energy crisis and environmental pollution. It is urgent to vigorously develop and research efficient, clean and safe new energy vehicles to achieve energy saving and emission reduction. Lithium-ion batteries have become the best candidates for new energy vehicle power systems due to their advantages such as high specific energy, no pollution, and no memory effect. However, lithium-ion batteries are very sensitive to temperature. Only in a suitable temperature range can the battery pack be discharged efficiently and maintain good performance. High temperature will make the aging speed of lithium-ion battery faster, the thermal resistance will increase faster, the number of cycles will be reduced, the service life will be shortened, and even cause problems such as battery ther...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01M4/80H01M10/04H01M10/0525H01M10/48H01M10/613H01M10/615H01M10/625H01M10/643H01M10/654H01M10/6551H01M10/6554H01M10/6556
CPCY02E60/10Y02P70/50
Inventor 邱则有邱伯谦
Owner 长沙聚能充新能源有限公司