Battery
A secondary battery, electrolyte salt technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as damage to battery characteristics, poor conductivity, and increase in battery internal impedance, and achieve good high temperature characteristics and cycle characteristics, high Energy density, corrosion inhibition effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example
[0065] (First embodiment)
[0066] figure 1 The cross-sectional structure of the secondary battery according to this embodiment is shown. This secondary battery is a so-called lithium ion secondary battery that uses lithium (Li) as an electrode reactant, in which the capacity of the negative electrode is expressed as a capacity component due to insertion and extraction of lithium. The secondary battery is a so-called cylindrical type, and has a wound electrode body 20 inside a substantially hollow cylindrical battery can 11, which has a pair of strip-shaped positive electrodes 21 and strip-shaped negative electrodes 22 with a separator therebetween. 23 while winding. The battery can 11 is composed of, for example, nickel-plated iron, and one end thereof is closed and the other end is open. Inside the battery can 11, a pair of insulating plates 12 and 13 are respectively arranged perpendicularly with respect to the outer circumferential surface of the winding to sandwich the wou...
Example
[0112] (Second embodiment)
[0113] image 3 The structure of the secondary battery according to the second embodiment of the present invention is shown. This secondary battery is called a so-called laminated film type, and a wound electrode body 30 having a positive electrode lead 31 and a negative electrode lead 32 installed therein is housed inside a film-shaped external member 40.
[0114] The positive electrode lead 31 and the negative electrode lead 32 are each drawn out in the same direction from the inside to the outside of the external member 40, for example. Both the positive electrode lead 31 and the negative electrode lead 32 are made of a metal material such as aluminum, copper, nickel, stainless steel, etc., and are formed in a thin plate shape or a network shape.
[0115] The outer member 40 is made of, for example, a rectangular aluminum laminate film obtained by sequentially bonding a nylon film, an aluminum foil, and a polyethylene film. In the outer member 40, fo...
Example
[0128] Examples 1-1 to 1-5
[0129] Prepared as figure 1 The secondary battery shown.
[0130] First, 94 parts by mass of lithium-cobalt composite oxide as a positive electrode active material, 3 parts by mass of ketjen black (amorphous carbon powder) as a conductive agent, and 3 parts by mass of a polymer as a binder Difluoroethylene is mixed, and the mixture is dispersed in N-methyl-2-pyrrolidone as a solvent to prepare a positive electrode mixture slurry. Subsequently, the positive electrode mixture slurry was uniformly coated on both surfaces of a positive electrode current collector 21A made of a strip-shaped aluminum foil having a thickness of 20 μm, dried, and then press-molded to form a positive electrode active material layer 21B. Thus, the positive electrode 21 was prepared. After that, the positive electrode lead 25 made of aluminum was mounted on one end of the positive electrode current collector 21A.
[0131] The anode 22 was prepared in the following manner. First,...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap