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Sintered body for use in battery, method for manufacturing sintered body for use in battery, and all-solid-state lithium battery

A manufacturing method and technology of sintered bodies, which are applied to the manufacture of electrolyte batteries, battery electrodes, lithium batteries, etc., to achieve the effect of suppressing the reduction of charge and discharge characteristics and excellent output characteristics

Inactive Publication Date: 2013-05-22
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, Patent Document 3 discloses a laminate for an all-solid lithium secondary battery comprising: an active material layer containing a crystalline material capable of releasing and storing Li ions; and an active material layer bonded to the active material layer by sintering. And the solid electrolyte layer containing a crystalline material having Li ion conductivity, when the above-mentioned laminate is analyzed by X-ray diffraction method, components other than the constituent components of the above-mentioned active material layer and the constituent components of the above-mentioned solid electrolyte layer will not be detected. Element

Method used

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  • Sintered body for use in battery, method for manufacturing sintered body for use in battery, and all-solid-state lithium battery
  • Sintered body for use in battery, method for manufacturing sintered body for use in battery, and all-solid-state lithium battery
  • Sintered body for use in battery, method for manufacturing sintered body for use in battery, and all-solid-state lithium battery

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no. 2 Embodiment approach

[0101] Hereinafter, a second embodiment of the present invention will be described in detail.

[0102] The battery sintered body according to the second embodiment of the present invention is characterized by comprising a sodium superionic conductor type phosphate compound as a solid electrolyte material and LiCoO as an active material material. 2 When the interface between the solid electrolyte material and the active material material is analyzed by the X-ray diffraction method, components other than the components of the solid electrolyte material and the components of the active material material are not detected.

[0103] According to the second embodiment, by combining a sodium superionic conductor type phosphoric acid compound with LiCoO 2 Used in combination, it can be made into sodium superionic conductor type phosphoric acid compound and LiCoO by X-ray diffraction method 2 Phosphoric acid compounds and LiCoO of the superionic conductor type except for sodium will no...

no. 3 Embodiment approach

[0114] Hereinafter, a third embodiment of the present invention will be described in detail.

[0115] The sintered body for batteries according to the third embodiment of the present invention is characterized by comprising a sodium superionic conductor type phosphate compound as a solid electrolyte material and a transition metal oxide compound represented by the following general formula (2) as an active material material. When the interface between the solid electrolyte material and the active material material is analyzed by X-ray diffraction method, no components other than the components of the solid electrolyte material and the components of the active material material will be detected.

[0116] M2 y1 o y2 (2)

[0117] (In the above general formula (2), M2 is a transition metal element other than Ti, and has the maximum valence that can be adopted, 0≤y 1 , 0≤y 2 )

[0118] According to the third embodiment, by combining a sodium superionic conductor type phosphori...

Embodiment

[0232] The following examples will be shown to further describe the present invention more concretely.

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Abstract

Provided are: a sintered body for use in a battery, wherein sintering-associated losses in charging / discharging characteristics are minimized; and a method for manufacturing said sintered body. Said sintered body is characterized by the provision of a solid electrolyte material, consisting of a NaSICON-type phosphoric acid compound, and an active material, consisting of LiCoO2, a transition metal oxide, or a spinel oxide containing nickel and / or manganese. The sintered body is also characterized in that X-ray diffraction analysis detects no components other than those of the abovementioned solid electrolyte material and active material at the interface between said solid electrolyte material and active material.

Description

technical field [0001] The present invention relates to a battery sintered body including a laminate having a solid electrolyte layer and an active material layer, an active material layer mixed with a solid electrolyte and an active material, and the like in an all-solid lithium secondary battery, for example. Background technique [0002] In recent years, with the rapid spread of information-related equipment such as computers, video cameras, and mobile phones, and communication equipment, etc., the development of batteries used as their power sources has attracted attention. In addition, in the automotive industry and the like, development of high-output and high-capacity batteries for use in electric vehicles or hybrid vehicles is underway. At present, among various batteries, lithium batteries are attracting attention from the viewpoint of high energy density. [0003] Currently commercially available lithium batteries use electrolyte solutions containing flammable org...

Claims

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Application Information

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IPC IPC(8): H01M10/0562H01M4/48H01M4/505H01M4/525H01M6/18H01M10/052H01M10/058
CPCH01M10/0562H01M4/505Y02E60/122H01M4/525Y02T10/7011H01M10/052H01M10/058H01M2300/0017C04B35/447C04B35/62685C04B2235/3203C04B2235/3217C04B2235/3251C04B2235/3256C04B2235/3258C04B2235/3268C04B2235/3279C04B2235/3287C04B2235/447C04B2235/5436C04B2235/763C04B2235/80H01M10/0585H01M2300/002Y02E60/10Y02P70/50H01M4/48H01M6/18Y02T10/70
Inventor 南田善隆矢田千宏小浜惠一
Owner TOYOTA JIDOSHA KK
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