A kind of lithium ion secondary battery and the method for making lithium ion secondary battery
A secondary battery and lithium-ion technology, which is applied in secondary battery, electrolyte storage battery manufacturing, battery pack components, etc., can solve the problem of low space utilization of polymer batteries, low energy density and capacity of lithium-ion secondary batteries, etc. problem, to achieve the effect of improving space utilization, reducing height, increasing energy density and capacity
Active Publication Date: 2016-08-17
LENOVO (BEIJING) LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The space utilization rate of the polymer cell has a great relationship with the energy density and capacity of the lithium-ion secondary battery. Generally, the greater the space utilization rate of the polymer cell, the greater the energy density and capacity of the lithium-ion secondary battery. Therefore, the existing lithium-ion secondary batteries generally have the problem of low energy density and capacity of lithium-ion secondary batteries due to the low space utilization of polymer cells.
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
[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] Because the energy density and capacity of lithium-ion secondary batteries are related to the space utilization rate of polymer cells in lithium-ion secondary batteries, generally, when the space utilization rate of polymer cells in lithium-ion secondary batteries is higher , the higher the space utilization rate of the lithium-ion secondary battery, the greater the energy density and capacity of the lithium-ion secondary battery.
[0043] see figure 1...
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 discloses a lithium-ion secondary battery and a method for manufacturing the lithium-ion secondary battery. The lithium-ion secondary battery includes a polymer battery core, a battery circuit board and a battery case, wherein the polymer battery core is built with a positive electrode battery. The core pole piece, the negative electrode core pole piece, and the isolation film arranged between the positive pole pole piece and the negative pole pole piece, the polymer battery core is packaged with an encapsulation film, and the encapsulation film includes a side seal and a top seal. The seal can be bent toward the plane where the top of the polymer cell is located. The lithium ion secondary battery has high energy density and capacity.
Description
technical field [0001] The invention relates to a secondary battery, more specifically to a lithium ion secondary battery and a method for making the lithium ion secondary battery. Background technique [0002] Lithium-ion secondary batteries are widely used in electronic products such as mobile phones, notebooks, and digital cameras because of their advantages such as large specific capacity and high discharge capacity. [0003] Lithium-ion secondary batteries are mainly composed of polymer cells, battery protection circuit boards, upper plastic case covers, and lower plastic case covers. When the lithium-ion secondary battery is packaged, the space occupied by each part of the lithium-ion secondary battery is relatively fixed. Among them, the interior of the polymer battery includes a positive pole piece, a separator and a negative pole piece, and the positive pole piece The end of the sheet facing away from the separator has a cell top seal with a specified height for pa...
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 Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0525H01M2/02H01M2/08H01M10/058H01M50/202H01M50/24H01M50/244H01M50/284
CPCY02E60/10Y02P70/50
Inventor 黄保宁
Owner LENOVO (BEIJING) LTD