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Organic cathode material for sodium ion battery

A sodium ion battery, organic negative electrode technology, applied in battery electrodes, circuits, electrical components and other directions, can solve problems such as the inability to apply sodium ion battery system well, achieve stable electrochemical cycle performance, simple synthesis method, and low production cost Effect

Inactive Publication Date: 2013-12-18
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned sodium ion negative electrode materials mainly have problems in sodium intercalation potential, specific capacity and cycle stability, and cannot be well applied in sodium ion battery systems.

Method used

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  • Organic cathode material for sodium ion battery
  • Organic cathode material for sodium ion battery
  • Organic cathode material for sodium ion battery

Examples

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Effect test

Embodiment 1

[0056] Preparation of organic anode material C for sodium ion battery 8 H 4 O 4 Li 2 . The specific method is as follows: first weigh 0.5 mol of terephthalic acid, pour it into the reaction flask, add 200 ml of water, stir evenly with a glass rod, then weigh 1 mol of lithium hydroxide, and add 0.5 mol of terephthalic acid In the reaction flask, stir evenly with a glass rod, and then continue to add water to 500ml, stir evenly with a glass rod, and place in a constant temperature oven at 80°C for 24 hours to fully react, and obtain a clear and transparent solution, which is C 8 H 4 O 4 Li 2 Aqueous solution. Will C 8 H 4 O 4 Li 2 The aqueous solution was transferred to a blast drying oven at 100℃ for drying, and the water in the solution was removed to obtain C 8 H 4 O 4 Li 2 Powder samples. Weigh 120mg of C 8 H 4 O 4 Li 2 Put the powder in an agate mortar, grind for 5 minutes, weigh 60mg of acetylene black into the agate mortar, continue to grind for 10 minutes, and then add 1m...

Embodiment 2

[0059] Preparation of organic anode material C for sodium ion battery 8 H 4 O 4 Ca. The specific method is as follows: first weigh 0.5 mol of terephthalic acid, pour it into the reaction flask, add 200 ml of water, stir evenly with a glass rod, then weigh 1 mol of lithium hydroxide, and add 0.5 mol of terephthalic acid In the reaction flask, stir evenly with a glass rod, and then continue to add water to 500ml, stir evenly with a glass rod, and place in a constant temperature oven at 80°C for 24 hours to fully react, and obtain a clear and transparent solution, which is C 8 H 4 O 4 Li 2 Aqueous solution. Take 200mlC 8 H 4 O 4 Li 2 Put the aqueous solution in a new beaker, and then add a certain amount of CaCl to the beaker 2 , A large amount of white precipitate is produced in the beaker, which is C 8 H 4 O 4 Ca, continue to add 300ml of deionized water to the beaker, stir evenly with a glass rod, stand still for 1 hour, collect the precipitate C by filtration 8 H 4 O 4 Ca. Was...

Embodiment 3

[0062] Preparation of organic anode material C for sodium ion battery 8 H 4 O 4 Al 2 / 3 . The specific method is as follows: first weigh 0.5 mol of terephthalic acid, pour it into the reaction flask, add 200 ml of water, stir evenly with a glass rod, then weigh 1 mol of lithium hydroxide, and add 0.5 mol of terephthalic acid In the reaction flask, stir evenly with a glass rod, and then continue to add water to 500ml, stir evenly with a glass rod, and place in a constant temperature oven at 80°C for 24 hours to fully react, and obtain a clear and transparent solution, which is C 8 H 4 O 4 Li 2 Aqueous solution. Take 200mlC 8 H 4 O 4 Li 2 The aqueous solution is placed in a new beaker, and then a certain amount of Al(NO 3 ) 3 , A large amount of white precipitate is produced in the beaker, which is C 8 H 4 O 4 Al 2 / 3 , Continue to add 300ml of deionized water to the beaker, stir evenly with a glass rod, stand still for 1h, collect the precipitate C by filtration 8 H 4 O 4 Al 2 / 3 . ...

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Abstract

The invention discloses an organic cathode material for a sodium ion battery capable of being repeatedly charged and discharged, and belongs to the field of batteries. According to the organic cathode material for the sodium ion battery disclosed by the invention, an active substance of the organic cathode material is para-phthalate or a mixture of different para-phthalates; the chemical composition of the para-phthalate is C8H4O4.Rx, wherein R is Li, K, Rb, Cs, Mg, Ca, Sr, Ba, Ni, Cu, Sn, Fe, Zn, Cr, Al or Mn, and x is equal to 2 / 7, 1 / 3, 2 / 5, 1 / 2, 2 / 3, 1 or 2. The organic cathode material disclosed by the invention has low reaction potential, high quality specific capacity and excellent electrochemical cycle stability, and is simple in synthetic method and good in repeatability; the production cost is reduced, the requirement of sustainable development is met, and the organic cathode material has a wide application prospect in the field of sodium ion batteries.

Description

Technical field [0001] The invention belongs to the field of batteries, and particularly relates to an organic negative electrode material that can be used for repeated charge and discharge of sodium ion batteries. Background technique [0002] In the past few decades, the main energy source in the world has been fossil energy. The energy structure that strongly relies on fossil resources has brought two problems to social development. One is that fossil resources cannot be regenerated in a short period of time, resulting in an increasingly serious energy shortage; the other is the greenhouse effect and environment caused by the massive consumption of fossil resources. The pollution problem is getting worse. Therefore, solving resource and environmental problems has become two important issues related to the sustainable development of human society. Obviously, vigorously developing and using renewable energy, such as solar, wind, geothermal and tidal energy, gradually getting r...

Claims

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Application Information

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IPC IPC(8): H01M4/60
CPCY02E60/10
Inventor 黄宗令张海全牟成旭周爱军李晶泽
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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