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Electrode for power storage devices, power storage device, and method for producing electrode for power storage devices

A manufacturing method and technology for accumulators, which are applied in electrode manufacturing, battery electrodes, electrical components, etc., to achieve the effect of not easy to wrinkle or warp

Active Publication Date: 2020-05-05
IBIDEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, when lithium ions are occluded in a carbonaceous material by intercalation, the occluded amount of lithium ions has a theoretical upper limit of 372 mAh / g, and cannot exceed this upper limit.

Method used

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  • Electrode for power storage devices, power storage device, and method for producing electrode for power storage devices
  • Electrode for power storage devices, power storage device, and method for producing electrode for power storage devices

Examples

Experimental program
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Embodiment Construction

[0063] The electrode for an electrical storage device of the present invention will be described below using the drawings, but the electrode for an electrical storage device of the present invention is not limited to the description below.

[0064] figure 1 It is a cross-sectional view schematically showing an example of the electrode for an electrical storage device of the present invention.

[0065] Such as figure 1 As shown, the electrode 10 for an electrical storage device includes a collector plate 20a on which an electrode portion 30a is arranged, a collector plate 20b on which an electrode portion 30b is arranged, and a collector plate 20c on which an electrode portion 30c is arranged.

[0066] In the electrode 10 for an electrical storage device, the collector plates 20a, 20b, and 20c are connected to each other.

[0067] The current collector plate 20a has a connection portion 21a where the current collector plates are connected, and a non-connection portion 22a tha...

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PUM

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Abstract

An electrode for power storage devices is provided which exhibits high strength, and with which high connection reliability is ensured, said electrode for power storage devices being obtained by stacking a plurality of collector plates having, provided thereto, electrode parts including silicon as an active material. This electrode for power storage devices is provided with a plurality of collector plates having electrode parts provided thereto, and is characterized in that: the plurality of collector plates are connected to each other; the collector plates are provided with connection parts where the collector plates are connected to each other, and non-connection parts which support the electrode parts; the connection parts and the non-connection parts are formed from homogeneous stainless steel; the stainless steel is an austenitic stainless steel including a martensite structure; and the electrode parts include silicon as an active material.

Description

technical field [0001] The present invention relates to an electrode for an electrical storage device, an electrical storage device, and a method for manufacturing an electrode for an electrical storage device. Background technique [0002] Electricity storage devices using metals with a high tendency to ionize lithium are used in many fields because they can store large amounts of energy. [0003] As a method of manufacturing such an electrical storage device, Patent Document 1 discloses a method of manufacturing an electrical storage device including: a positive electrode formed on a positive electrode current collector having a through hole; The negative electrode formed on the negative electrode collector plate and the non-aqueous electrolyte containing lithium salt, the positive electrode contains a carbonaceous material with a layered structure capable of inserting and extracting anions as the positive electrode active material, and the negative electrode contains a ca...

Claims

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Application Information

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IPC IPC(8): H01M4/134H01M2/26H01M4/02H01M4/04H01M4/1395H01M4/66H01M10/0566
CPCH01M4/02H01M4/04H01M4/134H01M4/1395H01M4/66H01M10/0566Y02E60/10
Inventor 井户贵彦守屋茂树前田伸也
Owner IBIDEN CO LTD
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