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Lithium battery anode slurry for starting power supply of motorcycle and car starting power supply and lithium battery

A technology for starting a car and positive electrode slurry, which is applied to battery electrodes, secondary batteries, circuits, etc., can solve the problems of high production costs, and achieve the effects of low production costs, long cycle life, and good safety and stability

Inactive Publication Date: 2010-09-22
温岭市恒泰电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lithium battery mixed positive electrode slurry adopts lithium iron phosphate material and lithium cobalt oxide material to produce lithium battery with excellent specific capacity and specific energy, high power, good safety performance of lithium battery, and long cycle life; but the production cost High, not suitable for replacing lead-acid batteries as lithium batteries for motorcycles and automobiles starting power

Method used

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  • Lithium battery anode slurry for starting power supply of motorcycle and car starting power supply and lithium battery
  • Lithium battery anode slurry for starting power supply of motorcycle and car starting power supply and lithium battery
  • Lithium battery anode slurry for starting power supply of motorcycle and car starting power supply and lithium battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 1 As shown in the flow chart of the production process for producing lithium batteries, the positive electrode material in Example 1 in Table 1 was stirred and mixed for 5 to 10 hours. After mixing, the viscosity of the positive electrode slurry was 3500±500mPaS, and the particles of the positive electrode slurry were less than 150 mesh . Stir and mix the negative electrode material according to Example 1 in Table 2 for 5-10 hours. After mixing, the viscosity of the negative electrode slurry is 1500±500 mPaS, and the particles of the negative electrode slurry are less than 120 mesh.

[0041] Select a pure aluminum foil with a thickness of 0.018±0.002mm and a length×width of (1450±2)×(56.5±0.2)mm, use an oven to evaporate the solvent of the positive electrode slurry after mixing, and then heat it at a constant temperature of 20°C Coated on pure aluminum foil, the coating surface density is 1.25±0.020g / 100cm 2 . Select a double-gloss copper foil with a thic...

Embodiment 2～5

[0048] Mix according to the positive electrode materials of Examples 2-5 in Table 1 and the negative electrode materials of Examples 2-5 in Table 2, and the other process flow is the same as that of Example 1, and will not be repeated.

[0049] Table 1: The positive electrode material weight ratio (kg) of the lithium batteries of Examples 1-5

[0050]

[0051] Wherein the conductive agent described in Example 1 is conductive carbon black; the polar solvent is N-methylpyrrolidone.

[0052] The conductive agent described in embodiment 2 is flake graphite; the described polar solvent is dimethylformamide.

[0053] The conductive agent described in Example 3 is conductive carbon black and flake graphite, and the weight ratio between the two is 6:4; the polar solvent is N-methylpyrrolidone.

[0054] The conductive agent described in Example 4 is conductive carbon black and flake graphite, and the weight ratio between the two is 5:5; the polar solvent is dimethyl sulfoxide.

[...

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Abstract

The invention relates to lithium battery anode slurry for a starting power supply of a motorcycle and a car and a lithium battery. The lithium battery anode slurry comprises the following components in parts by weight: 1.0 to 4.0 parts of LiFePO4, 0.05-0.2 part of Li2CO3, 0.05-0.4 part of conductive agent, 0.1-1.0 part of water adhesive, 0.5-2 parts of de-ionized water and 0.1-0.35 part of polar solvent. A positive plate of the lithium battery is an aluminium foil coved by the hybrid anode slurry. The lithium battery hybrid anode slurry is produced by the compatibility of a lithium iron phosphate material and a lithium carbonate material. The invention has the advantages that the lithium battery has excellent specific capacity and specific energy, high power, good safety performance, long cycle service life and low generation cost, and can replace a lead-acid battery to be served as the starting power supply of the motorcycle and car, thus filling the technology gap of utilization of a lithium iron phosphate battery in the starting power supply in China.

Description

technical field [0001] The invention relates to a lithium battery positive electrode slurry and a lithium battery using the positive electrode slurry, in particular to a lithium battery positive electrode slurry for a motorcycle and an automobile starting power supply and a lithium battery using the positive electrode slurry; The field of battery technology. Background technique [0002] As people's awareness of environmental protection increases, the use of toxic metals such as lead and cadmium is increasingly restricted. Therefore, it is necessary to find new rechargeable batteries that can replace traditional lead-acid batteries. Lithium batteries naturally become one of the strong candidates. [0003] Lithium batteries are generally composed of positive electrode, negative electrode, electrolyte, separator, positive electrode lead, negative electrode lead, center terminal, insulating material, safety valve, sealing ring, PTC, battery case, etc. Lithium batteries have th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1397H01M4/62H01M10/0525
CPCY02E60/122Y02E60/10
Inventor 张荣华邓军
Owner 温岭市恒泰电池有限公司
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