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Rechargeable quinone-manganese oxide aqueous battery

A lithium manganese oxide battery technology, applied in battery electrodes, secondary battery manufacturing, circuits, etc., can solve the problems of low specific capacity and short cycle life, and achieve high specific capacity, long cycle life, and low cost

Inactive Publication Date: 2015-11-11
ZHANGJIAGANG SMARTGRID FANGHUA ELECTRICAL ENERGY STORAGE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a rechargeable quinone-manganese oxide lithium water system energy storage battery with high energy density, high power density, specific cost, environmental protection and long life to overcome the shortcomings of the existing technology. The problem of low specific capacity and short cycle life (especially at low rate) of aqueous lithium-ion batteries

Method used

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  • Rechargeable quinone-manganese oxide aqueous battery

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Embodiment 1

[0024] Using 1,5-diaminoanthraquinone as a monomer, oxidatively polymerizes to obtain poly-1,5-diaminoanthraquinone, and obtains a negative electrode active material. Take LiMn 2 o 4 As the starting material, according to the target product Li 3 mn 2 o 4 Calculate the lithium source of the stoichiometric ratio, add lithium carbonate, put it into a stainless steel ball mill tank for ball milling and mixing, add 10% polyvinyl alcohol to the powder raw material after ball milling to granulate, put it into a ceramic boat, and place it in a muffle In the furnace, when the air atmosphere was raised to 700°C at a heating rate of 2°C / min, the temperature was kept constant for 12 hours, and then naturally cooled to room temperature. After the product was crushed and sieved, the lithium-rich manganese oxide lithium positive electrode active material was obtained. The lithium-rich manganese oxide lithium material and anthraquinone polymer were mixed with acetylene black and polytetra...

Embodiment 2

[0026] Dissolve chloranil and 10wt% carbon nanotubes in NMP solvent at 160 0 C and Na 2 Polythiobenzoquinone and carbon nanotube composites were prepared by S reactive vulcanization polymerization. Mix this compound with acetylene black and PTFE binder according to the mass ratio of 80:15:5 to make a slurry, roll it into shape, press it on the stainless steel mesh collector with a pressure of 20Mpa, and dry it in the air at 393K for 6 hours Made of negative electrode sheet. With manganese acetate as the starting material, dissolved in water, according to the target product Li 4 mn 2 o 4 Calculate the lithium source of the stoichiometric ratio, add lithium acetate and dissolve to form an aqueous solution, stir and heat to remove water, add 10% polyvinyl alcohol to the solid powder after water removal, mix and granulate, put it into a ceramic boat, and place it in a muffle In the furnace, when the air atmosphere was raised to 700°C at a heating rate of 2°C / min, the temperat...

Embodiment 3

[0028] Dissolve 2,5 dihydroxybenzoquinone in acetic acid solvent at 80 0 Polymerized with formaldehyde under C to obtain poly-2,5 dihydroxybenzoquinone. This quinone polymer is mixed with acetylene black and PTFE binder according to the mass ratio of 55:40:5 to make a slurry, rolled and formed, pressed onto the stainless steel mesh collector with a pressure of 20Mpa, and dried at 393K in the air for 6 hours to make the negative electrode sheet. MnO 2 As the starting material, according to the target product Li 2 mn 2 o 4 Calculate the lithium source of the stoichiometric ratio, add lithium carbonate and mix evenly by ball milling, add 10% polyvinyl alcohol to the solid powder mixture, mix and granulate, put it in a ceramic boat, place it in a muffle furnace, and heat it in an air atmosphere at 5°C When the heating rate is increased to 500°C / min, the temperature is kept constant for 5 hours, and then the temperature is raised to 750°C at a rate of 2°C / min. . Mix this lit...

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Abstract

The invention relates to a rechargeable quinone-manganese oxide aqueous battery. The positive electrode of the rechargeable quinone-manganese oxide aqueous battery adopts an embedded compound to / from which a lithium ion and a zinc ion can be jointly inserted / extracted, the cathode adopts a quinone compound taking benzoquinone / multi-quinone with an aroma cyclic structure as an electrochemical oxidation reaction point, an electrolyte is a liquid-state or get-state material which takes a lithium salt and a zinc salt as a solvent and water as solution and has ionic conductivity, more than one kind of ions are involved in transferring between two poles during charging and discharging, therefore, an electrode structure is stabilized, the cyclic life of the rechargeable aqueous battery is prolonged, and moreover, the rechargeable quinone-manganese oxide aqueous battery has the characteristics of safety, low cost, environment friendliness, overcharging and over-discharging resistance, and is particularly suitable for the field of energy storage at a large scale.

Description

technical field [0001] The invention relates to a rechargeable quinone-manganese oxide lithium water system battery, which belongs to the field of rechargeable secondary batteries and also belongs to the technical field of energy materials. Background technique [0002] In order to meet the energy storage needs of renewable new energy power generation and building smart grids, it is urgent to develop long-life, low-cost, safe and environmentally friendly chemical energy storage battery systems. Existing chemical energy storage batteries mainly include lead-acid batteries, nickel-metal hydride batteries, flow batteries, and lithium-ion batteries with organic media. However, for large-scale energy storage, there is no energy storage system that can fully meet the requirements of large-scale energy storage. Lead-acid batteries have lower specific energy, shorter life, and contain toxic elements. Ni-MH batteries and flow batteries are expensive, and there is limited room for i...

Claims

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Application Information

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IPC IPC(8): H01M4/60H01M4/505H01M4/525H01M4/58H01M4/62H01M4/66H01M10/04
CPCH01M4/505H01M4/525H01M4/5825H01M4/60H01M4/606H01M4/622H01M4/623H01M4/625H01M4/661H01M10/04Y02E60/10Y02P70/50
Inventor 文越华程杰蔡莉丽申亚举徐艳赵鹏程曹高萍杨裕生
Owner ZHANGJIAGANG SMARTGRID FANGHUA ELECTRICAL ENERGY STORAGE RES INST
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