Sintered body for battery, method for producing sintered body for battery, and all-solid 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 excellent output characteristics and the effect of suppressing the reduction of charge and discharge characteristics

Inactive Publication Date: 2015-08-26
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 battery, method for producing sintered body for battery, and all-solid lithium battery
  • Sintered body for battery, method for producing sintered body for battery, and all-solid lithium battery
  • Sintered body for battery, method for producing sintered body for battery, and all-solid 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

A battery sintered body, in which charge-discharge properties are restrained from deteriorating in accordance with sintering, and a producing method thereof. A battery sintered body includes: a phosphate compound of a nasicon type as a solid electrolyte material; and any one of an oxide of a spinel type containing at least one of Ni and Mn, LiCoO2 and a transition metal oxide as an active material, wherein a component except a component of the above-mentioned solid electrolyte material and a component of the above-mentioned active material is not detected on an interface between the above-mentioned solid electrolyte material and the above-mentioned active material in analyzing by an X-ray diffraction method.

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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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01M10/0562H01M4/48H01M4/505H01M4/525H01M6/18H01M10/052H01M10/058
CPCH01M4/525Y02E60/122H01M10/052H01M10/058H01M10/0562H01M4/505Y02T10/7011H01M2300/0017C04B35/447C04B35/62685C04B2235/3203C04B2235/3217C04B2235/3251C04B2235/3256C04B2235/3258C04B2235/3268C04B2235/3279C04B2235/3287C04B2235/447C04B2235/5436C04B2235/763C04B2235/80H01M10/0585H01M2300/002Y02E60/10Y02P70/50H01M4/48H01M6/18Y02T10/70
Inventor南田善隆矢田千宏小浜惠一
OwnerTOYOTA JIDOSHA KK