Separator for a lithium secondary battery and a lithium secondary battery comprising the same
一种锂二次电池、分离膜的技术，应用在锂蓄电池、电池组零部件、非水电解质蓄电池等方向，能够解决大火灾、无法实现阻断、不具备切断功能等问题，达到移动容易、优秀形状稳定性、制造方法简单的效果
Active Publication Date: 2012-07-25
SOLE SOLAR TECH KOREA CO LTD
View PDF9 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, since aramid paper does not have a cutting function, it cannot be blocked by external short circuit and heat generation, resulting in a larger fire
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 1
[0060]
[0061] NW-106 (TEMPLOC, TEMPLOC, DENKA Company), bonded aramid sheet (thickness: 6μm, ventilation porosity: 47%, air permeability: 1.8sec / 100ml) on both sides and extruded with a roller at room temperature at 60psi pressure to produce a separation Membrane (thickness 28 μm, air porosity 47%, air permeability 237 sec / 100 ml).
[0062]
[0063] The anode active material uses LiNi (1-x-y) mn x co y o 2 (0≤x, 0≤y, 0≤x+y≤1), while the cathode active material uses MGP (China Steel Chemical Corporation (China Steel Carbon Chemical Co., Ltd.)), inserting the above-mentioned manufacturing process between the anode and cathode After the separation membrane is formed, a lithium secondary battery is manufactured using an aluminum case. The size of the battery is 100mm thick x 216mm wide x 216mm long, and the design capacity is 40Ah.
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
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
| melting point | aaaaa | aaaaa |
| melting point | aaaaa | aaaaa |
Login to View More
Abstract
The present invention relates to a separator for a lithium secondary battery and a lithium secondary battery comprising the same. In particular, the separator for a lithium secondary battery of the present invention comprises a thermoplastic polyolefin-based porous polymer sheet; and an aramid-based non-woven sheet laminated on at least one side of the polymer film, wherein the polyolefin-based polymer sheet and the aramid-based non-woven sheet are adhered with an adhesive, and the adhesive loses an adhesive force at a temperature of 80? or higher to separate the two sheets from each other. The separator for a lithium secondary battery of the present invention has a shut-down function, while exhibiting excellent shape stability even at a high temperature.
Description
technical field [0001] The invention relates to a separation membrane for a lithium secondary battery and a lithium secondary battery including the separation membrane. In particular, it relates to a separation membrane having a shutdown function and good shape stability in a high-temperature state, and a lithium secondary battery including the separation membrane. Background technique [0002] With the rapid development of electronics, communication, and computer industries, portable electronic communication instruments such as cameras, mobile phones, and notebook computers have been vigorously developed. Therefore, the demand for secondary batteries is increasing year by year as a power source for driving the above devices. In particular, recently, not only as a power source for portable electronic devices, but also as an environmentally friendly power source for larger devices, not only in Korea, but also in Japan, Europe, and the United States, its application to electr...
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 Applications(China)
IPC IPC(8): H01M2/16H01M10/05H01M50/417H01M50/423H01M50/489H01M50/491
CPCY02E60/122H01M2/1653H01M10/052Y02E60/10H01M50/417H01M50/491H01M50/489H01M50/423H01M50/449H01M50/581
Inventor 洪智俊黄译范高成泰金黄玄许允祯
Owner SOLE SOLAR TECH KOREA CO LTD