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Adhesive Composition, Electrode Composition, Electrode And Lithium Battery

A technology of composition and adhesive, which is applied in the fields of electrodes and lithium batteries, electrode compositions, and adhesive compositions, can solve problems such as structural damage, poor stability of secondary lithium batteries, and decreased capacity, and achieve good components The effect of stability

Active Publication Date: 2017-03-08
黄炳照
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the known secondary lithium batteries, since the binder in the negative electrode usually cannot have good adhesion to the active material, current collector and co-conductor at the same time, the structure of the negative electrode is easy to Destroyed due to the migration and migration of lithium ions, resulting in poor stability and reduced capacity of secondary lithium batteries

Method used

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  • Adhesive Composition, Electrode Composition, Electrode And Lithium Battery
  • Adhesive Composition, Electrode Composition, Electrode And Lithium Battery
  • Adhesive Composition, Electrode Composition, Electrode And Lithium Battery

Examples

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Embodiment 1

[0049] Preparation of Adhesive Composition

[0050] The adhesive composition of Example 1 was prepared sequentially through the following synthesis steps, which included the polyamic acid represented by the above formula II and N,N-dimethylacetamide as a solvent. However, the following synthetic steps are only illustrative and do not limit the scope of the present invention.

[0051] First, synthesize the diamine monomer represented by formula 1, and its reaction formula is as follows:

[0052]

[0053] In detail, the synthesis reaction of the diamine monomer represented by Formula 1 includes the following steps. First, 2,2'-biphenyl-2,2'-dicarboxylic acid (10 g, 41 mmol) was dissolved in concentrated sulfuric acid (86 g) in a three-necked round bottom flask at 0°C. Next, concentrated nitric acid (70%, 30.8 g, 340 mmol) was mixed with concentrated sulfuric acid (4 g), and the mixed acid solution was slowly added into the three-neck round bottom flask. After complete addi...

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Abstract

in which A is pyrenyl, anthryl, benzo[a]pyrenyl, benzo[e]pyrenyl, naphtho[2,3-a]pyrenyl, dibenzo[a,e]pyrenyl, dibenzo[a,h]pyrenyl or naphthyl; n is 0 to 10; X is greater than 0 and less than 1.

Description

technical field [0001] The present invention relates to an adhesive composition, an electrode composition, an electrode and a lithium battery, in particular to an adhesive composition with multiple functional groups in the side chain, an electrode composition including the adhesive composition, and An electrode prepared from the electrode composition and a lithium battery using the electrode. Background technique [0002] In recent years, the market demand for secondary lithium batteries with the characteristics of light weight, high voltage and high energy density, which can be repeatedly charged and discharged, is increasing day by day, and secondary lithium batteries are especially used in light electric vehicles, electric vehicles, and large storage The potential for application and expansion in the electrical industry is extremely high. Therefore, nowadays, the performance requirements for secondary lithium batteries such as light weight and durability, high voltage, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/133H01M4/134H01M10/052
CPCH01M4/133H01M4/134H01M4/622H01M10/052H01M2220/20H01M4/1393H01M4/1395H01M4/625H01M4/0404H01M4/0471Y02E60/10
Inventor 黄炳照林哲增黄子洋吴乃立黄昭郡梁文杰余承翰
Owner 黄炳照