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Ecological electrode, electric energy storage device and preparation method thereof

A technology for storing electrical energy and electrodes, which is applied in electrode manufacturing, battery electrodes, non-aqueous electrolyte storage batteries, etc., can solve the problems of toxicity, flammability, and volatility, so as to improve mechanical stability, increase the stability range, and ensure electrochemical stability. The effect of stability

Pending Publication Date: 2022-04-12
道达尔能源公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, commonly used organic solvents are toxic, volatile and flammable

Method used

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  • Ecological electrode, electric energy storage device and preparation method thereof
  • Ecological electrode, electric energy storage device and preparation method thereof
  • Ecological electrode, electric energy storage device and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment

[0113] The following are illustrative examples of the invention, relating to electrodes and batteries representing a device for storing electrical energy.

[0114] Preparation of electrodes

[0115] Using LiFePO 4 (P2 from Johnson Matthey) as active material. LiFePO 4 Also using Lepage et al. 46 Reported chemical oxidation of acetic acid and hydrogen peroxide to FePO 4 . Note that other active materials that are stable in the electrochemical stability window in contact with the aqueous electrolyte can also be used.

[0116] Electrodes for electrochemical evaluation in aqueous electrolytes were prepared by combining 84 wt% active material (LFP or FePO) previously dissolved in deionized water 4 ), 9 wt % carbon black Timcal C65 and 7 wt % sodium carboxymethyl cellulose (CMC from Sigma Aldrich 419273, Mw=90,000 g / mol) binder. The slurry was mixed for 20 minutes using a Kurabo Mazerustar KK-50S planetary agitator-deaerator to obtain a homogeneous slurry and spread on a 30 m...

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Abstract

The invention discloses an ecological electrode, an electric energy storage device and a preparation method thereof. The present invention relates to a composite electrode for a device for storing electrical energy wherein the electrode comprises an electrode body and an electrode housing wherein the body comprises at least one water-soluble polymer and at least a portion of the housing comprises a housing comprising at least one organic or organometallic material. The invention also relates to a device for storing electrical energy comprising the composite electrode and a method for preparing the composite electrode.

Description

technical field [0001] The present invention relates to a composite electrode for a device for storing electrical energy, including, for example, batteries, capacitors such as electrochemical double layer capacitors (supercapacitors). The present invention also relates to a device for storing electrical energy comprising the composite electrode and a method for producing the composite electrode. Background technique [0002] Most batteries and capacitors are considered toxic to the environment. For some specific applications, but also for a better future, it would make sense to obtain eco-friendly or biodegradable devices for storing electrical energy. Batteries are made from several types of materials (active materials, polymer binders, metal current collectors, etc.). Improvements to these materials are needed if we want to get systems that are more compatible with the environment. Whether the battery electrolyte is an aqueous or organic medium, the binder is typically ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/88H01M10/052H01M10/0525
CPCH01M4/622H01M4/886H01M10/0525Y02E60/50Y02E60/10H01M4/0428H01M10/05H01M10/24H01M4/366H01M4/604
Inventor 达维德·艾梅-佩罗雅各布·普罗菲利卢克·斯塔福德斯蒂夫·鲁斯洛米克尔·多勒
Owner 道达尔能源公司
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