Unlock instant, AI-driven research and patent intelligence for your innovation.

1.5V super capacitor

Inactive Publication Date: 2011-11-23
天津翔驰电子有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the voltage of high-performance secondary batteries in chemical batteries is mostly above 3V, and they cannot be easily interchanged with commonly used 1.5V batteries, which limits the application range of this combination

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dissolve 6g of PVDF in 100g of N-methylpyrrolidone (NMP), and stir at 800 rpm on a high-speed mixer for 30 minutes to make a transparent homogeneous solution. Mix 80g of lithium iron phosphate, 10g of activated carbon, and 4g of acetylene black evenly, then dry in a vacuum oven at 100°C for 12 hours, and then add the dried mixture into a transparent and uniform solution. Then, stir at 300 rpm for 60 minutes to form a uniform slurry, coat the slurry on a 20 μm thick aluminum foil according to the coating thickness of 100 μm, put it in a blast drying oven at 120 ° C for 24 hours, take it out, and cut it into 40mm×300mm strips, welded with tabs, used as positive electrodes, dried at 60°C for use.

[0020] 80g of lithium titanate, 10g of amorphous titanium dioxide, and 2g of conductive graphite were mixed, and then dried in a 100°C, 1KPa vacuum oven for 12 hours. Dissolve 8g of PVDF in 120g of NMP, stir at 800 rpm for 3 hours to make a transparent uniform solution, then ad...

Embodiment 2

[0023] Add 6g of a polyacrylate solution with a mass concentration of 15% into 80g of water and dilute to make a transparent uniform solution, then add a mixture of 60g of lithium iron phosphate, 30g of activated carbon and 4g of conductive graphite into the uniform solution. Then, stir on a high-speed mixer at 300 rpm for 30 minutes to form a uniform slurry, and then coat it on 20 μm thick annealed stainless steel according to the coating thickness of 120 μm, put it in a blast drying oven at 120 ° C for 24 hours, and take it out. Cut into strips of 40mm×300mm, welded on stainless steel tabs, used as positive electrodes, and dried at 60°C for later use.

[0024] Dissolve 8g of PVDF in 100g of NMP, stir at 800 rpm for 3 hours to make a transparent uniform solution, then put 60g of lithium titanate, 30g of amorphous titanium dioxide, and 2g of graphite in a vacuum oven at 100°C and 1kPa The dried mixture was added to the homogeneous solution. Then, stir at 300 rpm for 5 hours t...

Embodiment 3

[0027] Stir 6g of polyethylene in 100g of ethanol at 700 rpm for 4 hours to make a transparent uniform solution, then put 40g of lithium iron phosphate, 50g of activated carbon, and 4g of acetylene black, and then dry it in a vacuum oven at 100°C for 12 After 1 hour the mixture was added to a homogeneous solution. Then, stir at high speed at 200 rpm for 120 minutes to form a uniform slurry, and then evenly roll it on a 10 μm thick titanium alloy to control the coating thickness to 150 μm, put it in a blast drying oven at 120 ° C for 24 hours, take it out, and divide Cut into strips of 40mm×300mm, welded on stainless steel tabs, used as positive electrodes, and dried at 60°C for later use.

[0028] Stir 8g of polyethylene in 100g of ethanol solution at 700 rpm for 4 hours to make a transparent uniform solution, then mix 40g of lithium titanate, 50g of amorphous titanium dioxide, and 2g of acetylene black at 100°C under a vacuum of 1KPa The mixture dried in the drying oven for ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a 1.5V super capacitor, which belongs to the innovation of chemical energy storage technology. The super capacitor comprises a positive electrode, a diaphragm, electrolyte and a negative electrode. The positive electrode contains lithium iron phosphate, active carbon, a binding agent, a conducting agent and a current collector. The negative electrode contains spinel lithium titanate, amorphous titanium dioxide, a binding agent, a conducting agent and a current collector. The diaphragm is a micro-porous polypropylene film, a micro-porous polyethylene film or a composite film formed from the micro-porous polypropylene film and the micro-porous polyethylene film or a paper made film made from fibres. The electrolyte is formed by dissolving lithium salt in an organic matter solution. The invention has the advantages that the positive electrode contains a component capable of storing higher energy and outputting higher current; simultaneously, the negative electrode contains a component having a high-current discharge capacity; therefore, the 1.5V super capacitor having the characteristics of strong high-current discharge capacity and high low-current discharge capacity is formed; and the preparation process of the super capacitor is simply carried out.

Description

technical field [0001] The invention relates to a 1.5V supercapacitor, which belongs to the technical innovation of chemical energy storage. technical background [0002] In recent years, with the development of electronic technology, higher requirements have been put forward for chemical power sources, which often require chemical power sources to be able to discharge with large currents and output high capacity under low current discharge conditions. Among chemical power sources, chemical supercapacitors can output large currents, but have small discharge capacity at low currents; chemical batteries can output large capacities at low current discharges, but have relatively poor discharge capacity at high currents. The current solution is to use more than two chemical power sources in an electronic device, generally including a chemical supercapacitor and a secondary battery. The chemical supercapacitor provides high-current discharge, and the secondary battery provides hig...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01G9/042
CPCY02E60/13
Inventor 郝德利于涛
Owner 天津翔驰电子有限公司