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Method for producing high voltage and high energy of single battery, preparation method and production method of battery pack

A single battery, high-energy technology, applied in the direction of secondary battery manufacturing, battery pack components, electrolyte storage battery manufacturing, etc., can solve the problem of large battery packs, etc., to achieve the effect of increasing the voltage

Inactive Publication Date: 2018-06-22
华动智慧信息技术(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when high voltage and high energy are required, a large number of single cells are connected in series; this results in a very large battery pack

Method used

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  • Method for producing high voltage and high energy of single battery, preparation method and production method of battery pack
  • Method for producing high voltage and high energy of single battery, preparation method and production method of battery pack
  • Method for producing high voltage and high energy of single battery, preparation method and production method of battery pack

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Experimental program
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Effect test

Embodiment 1

[0043] The preparation method of the plate-type battery pack of the present embodiment comprises the following preparation steps:

[0044] a) Preparation of positive electrode: 95.5% nickel-cobalt lithium manganese oxide (LiNixCoyMn(1-x-y)O2, where x=1 / 5~4 / 5, y=1 / 5~4 / 5) was used as solvent in NMP , 1.6% of conductive carbon, 1.0% of BP-2000 and 2% of polyvinylidene fluoride were mixed and stirred to form the active material layer A slurry, the solid content of the active material layer A slurry was 65%, and 16 μm aluminum foil was used as the positive electrode collector Fluid, and then apply the active material layer slurry on the surface of 16μm aluminum foil to form the active material layer, dry, and then use a roller press to compact the pole piece to make a positive pole piece, and then use a punching machine or film cutting The machine made the large sheet into a positive electrode sheet of a specified size with an aluminum foil current collector.

[0045] b) Preparati...

Embodiment 2

[0050] The preparation method of the plate-type battery pack of the present embodiment comprises the following preparation steps:

[0051] a) Preparation of positive electrode: 95.5% nickel-cobalt lithium manganese oxide (LiNixCoyMn(1-x-y)O2, where x=1 / 5~4 / 5, y=1 / 5~4 / 5) was used as solvent in NMP , 1.6% of conductive carbon, 1.0% of BP-2000 and 2% of polyvinylidene fluoride were mixed and stirred to form the active material layer A slurry, the solid content of the active material layer A slurry was 65%, and 16 μm aluminum foil was used as the positive electrode collector Fluid, and then apply the active material layer slurry on the surface of 16μm aluminum foil to form the active material layer, dry, and then use a roller press to compact the pole piece to make a positive pole piece, and then use a punching machine or film cutting The machine made the large sheet into a positive electrode sheet of a specified size with an aluminum foil current collector.

[0052] b) Preparati...

Embodiment 3

[0057] The preparation method of the plate-type battery pack of the present embodiment comprises the following preparation steps:

[0058] a) Preparation of positive electrode: 95.5% nickel-cobalt lithium manganese oxide (LiNixCoyMn(1-x-y)O2, where x=1 / 5~4 / 5, y=1 / 5~4 / 5) was used as solvent in NMP , 1.6% of conductive carbon, 1.0% of BP-2000 and 2% of polyvinylidene fluoride were mixed and stirred to form the active material layer A slurry, the solid content of the active material layer A slurry was 65%, and 16 μm aluminum foil was used as the positive electrode collector Fluid, and then apply the active material layer slurry on the surface of 16μm aluminum foil to form the active material layer, dry, and then use a roller press to compact the pole piece to make a positive pole piece, and then use a punching machine or film cutting The machine made the large sheet into a positive electrode sheet of a specified size with an aluminum foil current collector.

[0059] b) Preparati...

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Abstract

The invention discloses a method for producing high voltage and high energy of a single battery, a preparation method and a production method of a battery pack. The high-voltage and high-energy singlebattery comprises a positive electrode piece (3)-diaphragm (4)- negative electrode piece (6)-the diaphragm (4)- . . . , the positive electrode piece (3)-the diaphragm (4)-the negative electrode piece(6)-the diaphragm (4), and a single battery soft package film (8), wherein the diaphragm (4) is arranged between the positive electrode piece (3) and the negative electrode piece (6) in sequence andthe diaphragm (4) is arranged between the negative electrode piece (6) and the positive electrode piece (3) in sequence; an aluminum-plastic membrane (shell) covers the outermost side; a positive electrode comprises a positive electrode current collector and an active substance A layer and comprises the following components: 95.0 percent to 99.0 percent of an active substance A, 0.5 percent to 3.0percent of a conductive agent and 0.5 to 2.0 percent of a binding agent; a negative electrode comprises a negative electrode current collector and an active substance B layer and comprises the following components: 95.0 percent to 99.0 percent of an active substance B, 0.5 percent to 2.0 percent of a conductive agent, 0 to 1.0 percent of a thickening agent and 0.5 to 3.0 percent of a binding agent. The single battery has high voltage and also has high energy density and rate performance.

Description

technical field [0001] The invention relates to the field of battery manufacturing, in particular to a single battery capable of realizing high voltage and high energy, a preparation method thereof, and a manufacturing method of a plate battery pack. Background technique [0002] Since the launch of the first commercial lithium battery in 1991, its application has become the core technology of mainstream electronic equipment. With the depletion of oil resources and the increasingly serious environmental problems, it is an urgent need for the world to replace coal power stations and develop clean new energy pure electric vehicles; however, the battery energy under the current traditional thinking is difficult to meet the rapid and high growth The demand for various technological products such as pure electric vehicles, electric bicycles, distributed power station energy storage, smart phones, etc. [0003] At present, the disclosed technology is: the single battery is a sing...

Claims

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Application Information

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IPC IPC(8): H01M10/058H01M10/052H01M2/26H01M10/04H01M50/531
CPCH01M10/0404H01M10/052H01M10/058H01M50/531Y02E60/10Y02P70/50
Inventor 不公告发明人
Owner 华动智慧信息技术(深圳)有限公司
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