Battery
A battery and electrolyte technology, applied in the direction of lithium batteries, secondary batteries, circuits, etc., can solve the problem of difficult to make thin-film batteries, etc., and achieve the effect of inhibiting capacity decline and inhibiting expansion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 approach
[0023] figure 1 An exploded perspective view showing a secondary battery according to a first embodiment of the present invention. The secondary battery comprises a wound electrode body 20 to which a positive terminal 11 and a negative terminal 12 are connected within a film outer element 30 .
[0024] The positive terminal 11 and the negative terminal 12 respectively lead from the inside to the outside of the outer element 30 , and for example each lead out in the same direction. The positive terminal 11 and the negative terminal 12 are respectively made of metal materials such as aluminum (Al), copper (Cu), nickel (Ni) and stainless steel, and are respectively in the shape of a sheet or a mesh.
[0025] The outer member 30 is made of rectangular laminated films in which, for example, nylon film, aluminum foil and polyethylene film are bonded together in this order. For example, the outer member 30 is arranged such that the polyethylene film side and the wound electrode bod...
no. 2 approach
[0071] The secondary battery according to the second embodiment of the present invention has the structure, performance and effect similar to those of the first embodiment, except that a secondary battery having a structure in which at least one selected from polyvinyl acetal and its derivatives is polymerized is used. High molecular weight compounds are not used as supports.
[0072] Polyvinyl acetal is to comprise the constituent unit that contains the acetal group represented by chemical formula 3 (1), the constituent unit that contains the hydroxyl group represented by chemical formula 3 (2) and the constituent unit that contains the acetyl group represented by chemical formula 3 (3) as repeated unit compound. Specifically, for example, polyvinyl formal whose R represented by Chemical Formula 3(1) is hydrogen, and polyvinyl butyral whose R represented by Chemical Formula 3(1) is a propyl group are cited.
[0073] chemical formula 3
[0074]
[0075] In the formula, R ...
no. 3 approach
[0080] The secondary battery according to the third embodiment of the present invention has a structure, performance and effect similar to those of the first embodiment, except that the electrolyte is a liquid electrolytic solution not containing a support, and this electrolytic solution is impregnated in the separator 23 . The composition of the electrolytic solution is similar to that of the first embodiment.
[0081] A secondary battery can be manufactured as in the first embodiment, except that an electrolytic solution is injected instead of a composition of substances for an electrolyte.
PUM
Property | Measurement | Unit |
---|---|---|
surface roughness | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com