Lithium ion capacitor battery integrating lithium ion capacitor and lithium battery, and preparation method thereof

A lithium-ion battery and capacitor battery technology, which is applied in the direction of capacitor collector combination, battery electrode, hybrid capacitor electrode, etc., to achieve the effect of large discharge power, thin size and long cycle period

Inactive Publication Date: 2020-10-09
金之坚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lithium batteries have certain limitations in terms of high power output, cycle life, fast charging, and wide temperature range use.

Method used

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  • Lithium ion capacitor battery integrating lithium ion capacitor and lithium battery, and preparation method thereof
  • Lithium ion capacitor battery integrating lithium ion capacitor and lithium battery, and preparation method thereof

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0033] And described preparation method then comprises the steps:

[0034] S1. Form a lithium ion battery positive electrode material layer and a lithium ion capacitor positive electrode material layer on both sides of the positive electrode current collector, respectively, and form a lithium ion battery negative electrode material layer and a lithium ion capacitor negative electrode material layer on both sides of the negative electrode current collector. Floor;

[0035] S2. Drying and pressing the current collector.

[0036] Wherein when pressing, the positive electrode material layer of the lithium battery on the front of the positive electrode current collector, and the positive electrode material layer of the lithium ion capacitor on the reverse side; To suppress.

[0037] The preparation of the current collector part is completed through the above steps, and then the connection of the positive electrode current collector and the negative electrode current collector is ...

Embodiment 1

[0042] A schematic diagram of the preparation method is shown in this embodiment, which includes the following steps:

[0043] Step 1: using aluminum foil and copper foil as the positive electrode current collector and negative electrode current collector of the mixture.

[0044] Step 2: Prepare lithium battery positive electrode slurry and lithium ion capacitor positive electrode slurry, as well as lithium battery negative electrode slurry and lithium ion capacitor negative electrode slurry.

[0045] Step 3: Coating the lithium battery cathode slurry described in step 2 on the front side of the positive electrode collector, and then coating the lithium ion capacitor cathode slurry described in step 2 on the reverse side of the positive electrode collector.

[0046] Step 4: Apply the lithium battery negative electrode slurry described in step 2 on the front of the negative electrode collector, and then apply the lithium ion capacitor negative electrode slurry described in step...

Embodiment 2

[0063] Nickel-cobalt-manganese (NCM523) material, PVDF, and SP are formulated into a lithium battery positive electrode slurry in a mass ratio of 95.9:2:2.1, and then coated on the front of a 15um thick aluminum foil as a lithium battery positive electrode.

[0064] Nickel-cobalt-manganese (NCM523) material, activated carbon, PVDF, and SP were prepared in a mass ratio of 24.3:71.7:2:2 to make a lithium-ion capacitor positive electrode slurry, and coated on the reverse side of the aluminum foil as a lithium-ion capacitor positive electrode.

[0065] The silicon carbon plus graphite material, SBR, CMC and SP are formulated into a lithium battery negative electrode slurry in a mass ratio of 95.3:2:1.2:1.5, and coated on the front of a 10um thick copper foil as a lithium battery negative electrode.

[0066] As above, the silicon carbon plus graphite material, SBR, CMC and SP are prepared in the ratio of 95.3:2:1.2:1.5 to make the negative electrode slurry of the lithium ion battery...

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Abstract

The invention relates to the technical field of manufacturing and application of lithium batteries and lithium ion capacitors, particularly to a lithium ion capacitor battery integrating a lithium ioncapacitor and a lithium battery, and a preparation method thereof, wherein the electrode material layer of a lithium ion battery and the electrode material layer of a lithium ion capacitor are correspondingly arranged on two sides of a current collector respectively. According to the invention, an energy storage device integrating a lithium ion battery and a lithium ion capacitor is provided, wherein various materials and parts required by related production of a lithium battery are matched on the opposite surface of a lithium battery positive electrode material layer on the front surface toform a complete lithium battery, and various materials and parts required by related production of a lithium ion capacitor are matched on the opposite surface of a lithium ion capacitor positive electrode material on the back surface to form a complete lithium ion capacitor; and at least one lithium battery and one lithium ion capacitor are arranged in a mixture lithium ion capacitor battery at the same time, so that a perfect scheme is provided for cooperative use of the lithium battery and the lithium ion capacitor.

Description

technical field [0001] The invention relates to the technical field of manufacture and application of lithium batteries and lithium ion capacitors, in particular to a lithium ion capacitor battery integrating lithium ion capacitors and lithium batteries and a preparation method thereof. Background technique [0002] With the attention and development of power and energy storage power sources in electric vehicles, electronics, solar energy, wind energy and various emerging high-tech fields, the world has attracted extensive attention to two energy storage devices, lithium batteries and lithium ion capacitors. [0003] Among them, lithium-ion capacitors have the characteristics of strong high-current discharge capability, long cycle life, fast charging speed, and wide temperature range. However, lithium batteries have certain limitations in terms of high power output, cycle life, fast charging, and wide temperature range use. [0004] Therefore, the applicant believes that if...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/08H01G11/06H01G11/50H01G11/46H01G11/32H01G11/86H01G11/84H01M4/131H01M4/1391H01M4/133H01M4/134H01M4/1393H01M4/1395H01M10/0525H01M10/0587
CPCH01G11/06H01G11/08H01G11/32H01G11/46H01G11/50H01G11/84H01G11/86H01M4/131H01M4/133H01M4/134H01M4/1391H01M4/1393H01M4/1395H01M10/0525H01M10/0587Y02E60/10Y02E60/13Y02P70/50
Inventor 金之坚张学臣
Owner 金之坚
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