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Electrode structure and method of manufacture thereof

An electrode structure and battery technology, applied in the direction of electrode manufacturing, spraying manufacturing, battery electrodes, etc., to achieve the effect of improving the overall performance

Active Publication Date: 2017-08-29
OXFORD UNIV INNOVATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Therefore currently available energy storage devices such as batteries and supercapacitors have several disadvantages and limitations

Method used

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  • Electrode structure and method of manufacture thereof
  • Electrode structure and method of manufacture thereof
  • Electrode structure and method of manufacture thereof

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Embodiment Construction

[0050] figure 1 One half 10 of a supercapacitor cell is schematically shown. The complete cell comprises a similar or identical other half of the supercapacitor cell (not shown), which would be arranged in a mirror image on the opposite side of the line or plane of symmetry 12 . Cell 10 includes a first electrically conductive current collecting tab 14 carrying an electrode 16 . Electrode 16 includes two layers. The first layer 18 adjacent to the current collector 14 is a layer comprising a composite of a high weight percent (wt%) conductive carbonaceous material and a low wt% electrochemically active metal oxide to provide high double-layer charge storage capability. The second layer 20, adjacent to the first layer 18, comprises a composite of a high wt% high surface area porous electrochemically active metal oxide and a low wt% conductive carbonaceous material. This layer 20 serves to catalyze the redox reaction between the electrode 16 and the electrolyte 42 . Proton (...

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Abstract

An electrode structure comprises a conductive substrate or current collector and a first layer comprising a first electrochemically active material, the first active material being characterized by one or more first electrochemical properties. A second layer comprises a second electrochemically active material, the second active material being characterized by one or more second electrochemical properties, at least one of which is different from said one or more first electrochemical properties. The first and second layers are provided at predefined locations within the electrode structure based on the respective first and second electrochemical properties of the first and second electrochemically active materials to maximise the performance of each of the first and second layers. A method of fabricating such an electrode structure is also provided.

Description

technical field [0001] The present invention relates to the fabrication of electrode structures for electrochemical energy storage devices such as batteries (eg, lithium-ion batteries, supercapacitors, and fuel cells). [0002] The invention also relates to the manufacture of electrochemical energy storage devices such as batteries, especially lithium-ion batteries, supercapacitors and fuel cells. [0003] The invention also relates to electrode structures for electrochemical energy storage devices such as batteries (eg, lithium-ion batteries, supercapacitors, and fuel cells). Furthermore, the invention relates to electrochemical energy storage devices such as batteries, especially lithium-ion batteries, supercapacitors and fuel cells. Background technique [0004] Batteries, such as lithium-ion (Li-ion) batteries, are widely used as storage devices due to their low cost and beneficially high energy density (ie, good ability to store energy). However, batteries have a low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/28H01G11/86H01M4/04H01M4/131H01M4/133H01M4/139H01M4/36
CPCH01G11/28H01G11/86H01M4/0404H01M4/131H01M4/133H01M4/139H01M4/366H01G11/26H01G11/36H01G11/46Y02E60/10H01M4/0419H01M4/0428H01M4/134H01M4/1391H01M4/1393H01M4/364H01M4/48H01M4/663H01M2004/021
Inventor 帕特里克·格兰特黄淳
Owner OXFORD UNIV INNOVATION LTD
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