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

Synthesis method and application of aluminum bis(oxalato) borate

A bisoxalate aluminum borate and bisoxalate borate technology, applied in the field of electrochemical materials, can solve problems such as high cost, limited service life, and large safety hazards, and achieve short reaction time, simple and easy-to-operate reaction conditions, and high yield Effect

Inactive Publication Date: 2019-10-25
LANZHOU UNIVERSITY OF TECHNOLOGY
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite the great success of lithium-ion batteries in powering mobile electronic devices, in renewable energy applications, lithium-ion batteries have a limited life cycle, high safety hazards and relatively high cost

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synthesis method and application of aluminum bis(oxalato) borate
  • Synthesis method and application of aluminum bis(oxalato) borate
  • Synthesis method and application of aluminum bis(oxalato) borate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] S1, weigh 20.83 g oxalic acid, 4.74 g boric acid, 1.99 g aluminum hydroxide;

[0024] S2. Heat and dry the weighed oxalic acid at 100°C for 3 h in vacuum, and heat and dry boric acid and aluminum hydroxide at 65°C for 3 h without vacuum;

[0025] S3. Put the dried oxalic acid, boric acid, and aluminum hydroxide in a round-bottomed flask, shake well (about 1 hour), press into tablets at 10 Mpa, transfer to a beaker, place in a vacuum drying oven, and react at 120 °C After 30 min, vacuumize to 0.07 Mpa, and react at a temperature of 150 °C for 12 h to obtain a white solid;

[0026] S4. The obtained white solid was transferred to 500 mL of acetonitrile, stirred for 15 min and then filtered, and the obtained filtrate was evaporated at 65°C to obtain about 12.7 g of aluminum bisoxalate borate with a primary conversion rate of about 84.7% and a purity of about 98.5%.

[0027] The infrared spectrogram of the double oxalate aluminum borate prepared by the present embodiment i...

Embodiment 2

[0029] S1, weigh 19.33 g oxalic acid, 4.74 g boric acid, 1.99 g aluminum hydroxide;

[0030] S2. The weighed oxalic acid was heated and dried under vacuum at 110°C for 3 h, and the boric acid and aluminum hydroxide were heated at 65°C for 3 h without vacuum;

[0031] S3. Put the dried oxalic acid, boric acid, and aluminum hydroxide in a round bottom flask, shake well (about 1 hour), press 10 Mpa into tablets, transfer to a beaker, place in a vacuum drying oven, and react at 120 °C After 45 min, vacuumize to 0.07 Mpa, and react at a temperature of 150 °C for 12 h to obtain a white solid;

[0032] S4. Transfer the obtained white solid into 500 mL of dimethyl carbonate, stir for 15 min and then filter, evaporate the solvent from the obtained filtrate at 65°C to obtain about 11.5 g of aluminum bisoxalate borate, with a primary conversion rate of about 76.7% , the purity is about 99%.

[0033] figure 2 The XRD spectrum of the aluminum bisoxalate borate prepared in this example ...

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 discloses a synthesis method and an application of aluminum bis(oxalato) borate. The method comprises steps that according to a stoichiometric ratio of elements in the aluminum bis(oxalato) borate, a certain amount of boracic acid, oxalic acid and aluminum compounds are dried at the high temperature, mixed, tableted and subjected to solid-solid reaction under high temperature to obtain white solid, the white solid is then thoroughly dried and extracted in non-aqueous solvent, and lastly, the extract is evaporated to crystallize to obtain final product, namely, the aluminum bis(oxalato) borate. The method is advantaged in that a reaction conversion rate of the process is high, the yield is higher than 70%, the reaction time is short, the reaction condition is simple and easy to operate, and the method is easy to achieve industrial production.

Description

technical field [0001] The invention relates to the field of electrochemical materials, in particular to a synthesis method and application of aluminum bisoxalate borate. Background technique [0002] At present, the relatively mature lithium-ion secondary battery has the advantages of high energy density, long cycle life, and small self-discharge. Equipped with power batteries (electric vehicles, submarines, etc.). However, the global lithium resources are not rich, the abundance in the earth's crust is only 0.006%, and the distribution is uneven, which will become a worry for large-scale application in the future. [0003] Compared with lithium resources, aluminum is the most abundant metal element in the earth's crust, with a content of 8.3%. It mainly exists in aluminosilicate ores, as well as bauxite and cryolite. Aluminum and aluminum alloys are currently one of the most economically applicable materials that are widely used. [0004] With the gradual electrificati...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M10/0525H01M10/0562C01B35/12
CPCC01B35/126H01M4/5825H01M10/0525H01M10/0562H01M2300/0068Y02E60/10
Inventor 李世友李文博崔孝玲李春雷韩亚敏杨莉王鹏王洁魏媛
Owner LANZHOU UNIVERSITY OF TECHNOLOGY