EP2724400A1 - Storage element - Google Patents
Storage elementInfo
- Publication number
- EP2724400A1 EP2724400A1 EP12753729.8A EP12753729A EP2724400A1 EP 2724400 A1 EP2724400 A1 EP 2724400A1 EP 12753729 A EP12753729 A EP 12753729A EP 2724400 A1 EP2724400 A1 EP 2724400A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- metal
- storage element
- element according
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/523—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron for non-aqueous cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
- H01M4/801—Sintered carriers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
- H01M4/801—Sintered carriers
- H01M4/803—Sintered carriers of only powdered material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
- H01M2300/0077—Ion conductive at high temperature based on zirconium oxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the invention relates to a storage element for a solid electrolyte battery according to the preamble of patent claim 1.
- Solid electrolyte batteries are based on the principle of solid electrolyte fuel cells, which are created by adding
- This SpeI ⁇ cherium usually consist of ceramic Grundkör ⁇ pern into which are embedded particles of a metal and / or Me ⁇ talloxid which educational a redox couple together the.
- This SpeI ⁇ cheriano usually consist of ceramic Grundkör ⁇ pern into which are embedded particles of a metal and / or Me ⁇ talloxid which educational a redox couple together the.
- the particles are reduced in ⁇ to the metal.
- oxygen in the air energy can be ⁇ ge gained that can be taken out as electric energy to the Abgriffspo ⁇ len of the batteries.
- the metal particles are completely oxidized to the respective metal oxide, the battery is discharged.
- the fuel cell is operated in the electrolysis mode now, with what ⁇ serstoff formed which redu to metal ⁇ adorns the metal oxides again.
- the discharge process so the oxidation of the metal particles in solids, it is based primarily on cationic diffusi ⁇ on. During the discharge process, therefore, there is a successive migration of the metal of the metal particles in the direction of Sau ⁇ source source, since the diffusion of the metal species over the diffusion of oxygen species is preferred. This leads to a continuous degradation of the memory structure and thus to a successive change in the charging and discharging characteristics, to an increase in the required charging and discharging times and to a decrease in useful capacity.
- the cationic diffusion leads to a non-optima ⁇ len reaction kinetics of the redox process, since the oxygen Transport is inhibited in the center of the storage particles or layers.
- the present invention is therefore based on the object to provide a memory element according to the preamble of claim 1, which has an improved life and favorable reaction kinetics.
- Such a storage element for a solid electrolyte battery comprises a base body of a porous matrix sintered ceramic particles and a redox system of a first metal and / or at least one oxide of the first Me ⁇ talls.
- a basic ⁇ composition of the storage element comprises at least one further oxide from the group Y 2 0 3, MgO, Gd 2 0 3, W0 3, ZnO, MnO, which is adapted to the first metal and / or the at least one oxide of the first metal to form an oxide mixed ⁇ phase.
- the oxidizing metal of the redox system can thus react with these oxide compounds to a new phase and thus be bound to the structure of the base body. This counteracts the mass flow occasioned by the ka ⁇ tionischen diffusion of the metal of the redox system in the direction of the oxygen gradient. This can be ensured that even at long
- the first metal and / or the at least one oxide of the first metal is incorporated in the form of particles in the matrix of the base body.
- the at least one further oxide in the form of particles from the at least one further oxide and / or the oxidic mixed phase is incorporated into the matrix of the main body.
- the matrix of the basic body enclosed in this embodiment three components, namely ceramic particles, particles of the re doxsystems and particles of the other oxide or the oxidi ⁇ rule mixing phase to which the oxidizing metal of the redox system in the operation of the memory element is bound.
- Such a storage element is particularly easy to make herzu ⁇ , since all the components involved, for example, processed in the form of powder mixtures to slip and can be formed into corresponding ceramics.
- the particles from the at least one further oxide phase or the mixed oxide phase then occupy a volume fraction of less than 50% by volume of the main body. It is also expedient if the base body has a pore content of 50% by volume in order to facilitate the diffusion. The remainder of the body then consists of the ceramic matrix.
- the first metal and / or the at least one oxide of the first Me ⁇ crystal into the form of particles which, in addition, the contained ⁇ th, placed at least one other oxide and / or the oxidic mixed phase in the matrix of the base body ,
- the redox system is thus not present in the storage element as pure metal and / or pure metal oxide, but is itself part of a metal-rich oxide compound. Metal diffusion in the direction of the oxygen source during the discharge process can thus be virtually completely avoided, since the metal is kept in the mixed oxide phase.
- Another advantage of this embodiment is that, where appropriate, a higher volumetric metal content than in binary metal oxides can be achieved.
- the particles which additionally contain at least one further oxide and / or the mixed oxide phase, occupy a volume fraction of more than 50% by volume
- Memory element thus only ceramic particles and pores before.
- ⁇ form a plurality of oxidic compounds of at least one main and / or transition group metal.
- Particularly expedient ⁇ SSIG is the use of (Y, Sc, Zr) 0 2 -, (Gd, Ce) 02 ⁇ , AI2O3-, MgO, Ti0 2 -, or (La, Sr, Ca, Ce) (Fe, i , Cr, Ga, Co) 0 3 -based materials.
- Such materials are inert to re doxrind at the usual operating conditions of Festelekt- rolyt battery and go with the most conveniently used redox systems, which are preferably implemented as iron / iron oxide systems, nonoteswer ⁇ th reactions.
- the at least one further oxide and / or the oxidic mixed phase can be distributed homogeneously in the main body of the storage element. It achieves a special ⁇ DERS advantageous structure of the memory element, however, by an inhomogeneous distribution.
- the at least one further oxide and / or the mixed oxide phase in the form of Barrier layers is arranged in the base body, between which layers at least ⁇ are at least predominantly free of the another oxide and / or mixed oxide phase are.
- Such barrier layers form particularly effective diffusion barrier for the metal ions of the redox system and are therefore preferably arranged so that their surfaces ⁇ normal points in the direction of the oxygen gradient.
- the at least one other oxide and / or the oxidic mixed phase, a supporting skeleton, into ⁇ particular in the form of a fürdringungsgemosges, form within the body so as to represent a particularly large contact area for reaction with ions of the metal are available.
- other composites such as rod arrays or the like are also possible.
- the long-term stability must also be ensured under charge-discharge cycling as well as in standby mode.
- Known storage materials show in the charge-discharge cycle ei ⁇ ne significant degradation of the memory over time, which is due to a separation of the iron from the matrix material beispielswei ⁇ se zirconia.
- the demixing of Memory structure is attributable to migration of the cationic iron in the direction of the source of oxygen during the oxidation process and leads to a less favorable ⁇ term sintering or agglomeration of the Speichermateri- as continuous and thus to decrease the Speicherkapa ⁇ capacity.
- iron diffusion in the direction of the oxygen source is prevented by binding the iron to a complex iron compound.
- It is particularly expedient for this purpose is the use of Y 3 Fe 5 0I2, Fe x O x Mgi_, Gd3Fe 0I2 5, Fe 2 W0 6, (Zn, Fe 2+) W0 4, (Zn, Mn 2+, Fe 2+) ( Fe 3+ , Mn 3+ ) 2 0 4 .
- the storage element can consist of the redox-active storage material S, ie iron / iron oxide, a ceramic matrix material M and an oxide compound O formed as a skeletal structure, which can react with the storage material S to form one of the abovementioned complex oxide phases.
- the mass flow of the Speicherma ⁇ terials S during the discharging, so in the course of the oxidation process, resulting in the direction of the oxygen gradient is counteracted by the fact that the oxidation of the iron with the oxide compounds 0 reacted to form a new phase, and is thus bound to the skeletal structure.
- the memory structure consists in this case of a redox-active storage material S with a volume percentage Xs of more than 50% by volume, of a compound oxide having a volume fraction x 0 of less than 50% by volume, a pore content x P from we ⁇ niger than 50 vol%, and optionally one or more ceramic matrix materials M with a volume fraction
- S is one or more optionally doped oxide dispersion-strengthened-modified iron oxides such as FeO, Fe 3 0 4 , Fe 2 0 3 and / or metallic iron.
- the oxide compound is either one of the abovementioned compositions, which may likewise be doped or ODS-modified, or individual oxides from the compounds listed, for example Y 2 O 3 , MgO, Gd 2 O 3 , WO 3 , ZnO or MnO , As Kerami ⁇ ULTRASONIC matrix material all oxidic compounds of main group and subgroup metals application can be found, in particular ⁇ sondere but (Y, Sc, Zr) 0 2 -, (Gd, Ce) 0 2 -, A1 2 0 3 - MgO Ti0 2 - and (La, Sr, Ca, Ce) (Fe, i, Cr, Ga, Co) 0 3 - based materials.
- the redox-active storage material may be present as S 0 is not iron oxide and / or metallic iron in the memory ⁇ element, but in principle be a component of an iron-rich oxide compound of the above kind. Again, there is no iron diffusion in the direction of the oxygen source during the discharge process, since the iron is held on the oxide compound. Another advantage of this variant is that sometimes a higher volumetric iron content than in binary iron oxides can be achieved.
- the memory structure consists in this case of the redox-tive storage material S 0 with a volume fraction x s of more than 50% by volume, a pore content x P of less than 50% by volume so-such as optionally one or more ceramic Matrixma ⁇ terialien M with a volume fraction
- ⁇ len case of an iron-based memory is at S 0 to one of the following compounds: Y 3 Fe 5 0i 2, Fe x Mgi_ x O, Fe 2 0 3 + Gd 3 Fe 5 0i 2, Fe 2 0 3 + Fe 2 W0 6 , (Zn, Fe 2+ ) W04,
- Ceramic matrix material also suitable here for the ceramic matrix material are all oxidic compounds of the main and subgroup metals, in particular likewise the material groups already mentioned above. Both embodiments described, the necessary ⁇ iron compounds via conventional mixed oxide routes, but also precursor, wet chemical and PVD / CVD process can be produced.
- Mehrlagenstruk- particularly useful are structures in which barrier layers are incorporated in the oxide compound is 0, or structures in which the oxide compound ⁇ 0 and / or the ceramic matrix M form a supporting skeleton.
- a further processing of these materials to the storage element is conceivable via all common ceramic methods, for example pressing, screen printing, film casting, slip casting, spray processes, electrophoretic deposition and derglei ⁇ chen.
- a thermal aftertreatment by sintering is possible with the materials mentioned.
- the main cause of the storage degradation namely the discharge process caused by the migration of the redox-active species in the direction of the oxidation tion source and concomitant loss of specific surface by the driven sintering of the storage particles by binding the iron to the oxide composition during charging counteracted
- the described composites can be embodied in a wide variety of structural forms, for example as a powder mixture, multilayer structures and / or skeletal structures and the like, and permit mass production, reproducible, flexible and cost-effective production of the storage medium.
- In addition to be signed ⁇ iron / iron oxide-based Save the education are exemplary embodiments of course, to different metal ⁇ storage materials, oxide binding partner and ceramic matrices applicable.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
- Hybrid Cells (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011083541A DE102011083541A1 (en) | 2011-09-27 | 2011-09-27 | storage element |
PCT/EP2012/067130 WO2013045217A1 (en) | 2011-09-27 | 2012-09-03 | Storage element |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2724400A1 true EP2724400A1 (en) | 2014-04-30 |
Family
ID=46785424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12753729.8A Withdrawn EP2724400A1 (en) | 2011-09-27 | 2012-09-03 | Storage element |
Country Status (7)
Country | Link |
---|---|
US (1) | US9660257B2 (en) |
EP (1) | EP2724400A1 (en) |
JP (1) | JP5872050B2 (en) |
KR (1) | KR20140069312A (en) |
CN (1) | CN103843176B (en) |
DE (1) | DE102011083541A1 (en) |
WO (1) | WO2013045217A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013008659A1 (en) | 2013-05-18 | 2014-11-20 | Forschungszentrum Jülich GmbH | Electrochemical storage material and electrochemical storage device for storing electrical energy, comprising such a storage material |
CN103840081B (en) * | 2014-03-19 | 2016-04-13 | 中国科学院微电子研究所 | Based on the non-volatile resistor transition type memory and preparation method thereof of yttrium iron garnet |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE492340A (en) | 1947-12-15 | |||
JPH04118861A (en) * | 1990-09-10 | 1992-04-20 | Fuji Electric Co Ltd | Solid electrolyte type fuel cell and its manufacture |
CN1118879C (en) * | 1998-02-12 | 2003-08-20 | 中国科学院大连化学物理研究所 | Anode fundamental mode for cell of middle-temp. solid oxide fuel and preparation thereof |
US6998187B2 (en) * | 2003-08-07 | 2006-02-14 | Nanodynamics, Inc. | Solid oxide fuel cells with novel internal geometry |
EP1513214A1 (en) | 2003-09-05 | 2005-03-09 | Sulzer Hexis AG | High temperature fuel cell with stabilized cermet structure |
JP4583810B2 (en) * | 2004-05-28 | 2010-11-17 | 東京窯業株式会社 | Proton conductive ceramics and method for producing the same |
JP2006172946A (en) * | 2004-12-16 | 2006-06-29 | Ngk Spark Plug Co Ltd | Solid electrolyte fuel battery cell, and solid electrolyte fuel battery using it and its manufacturing method |
US20060204830A1 (en) * | 2005-03-10 | 2006-09-14 | Ovonic Fuel Cell Company, Llc | Molten carbonate fuel cell |
CN101507028B (en) | 2006-08-24 | 2012-05-09 | 京瓷株式会社 | Fuel battery cell, fuel battery cell stack, and fuel battery |
JP5301865B2 (en) * | 2007-12-26 | 2013-09-25 | 東京瓦斯株式会社 | Horizontally striped solid oxide fuel cell |
US20110033769A1 (en) * | 2009-08-10 | 2011-02-10 | Kevin Huang | Electrical Storage Device Including Oxide-ion Battery Cell Bank and Module Configurations |
CA2775044C (en) * | 2009-09-25 | 2018-04-24 | Oerlikon Trading Ag, Truebbach | Method for producing cubic zirconia layers |
EP2325931A1 (en) | 2009-11-18 | 2011-05-25 | Plansee Se | Assembly for a fuel cell and method for producing same |
DE102009057720A1 (en) * | 2009-12-10 | 2011-06-16 | Siemens Aktiengesellschaft | Battery and method for operating a battery |
-
2011
- 2011-09-27 DE DE102011083541A patent/DE102011083541A1/en not_active Withdrawn
-
2012
- 2012-09-03 CN CN201280047154.5A patent/CN103843176B/en not_active Expired - Fee Related
- 2012-09-03 US US14/345,236 patent/US9660257B2/en not_active Expired - Fee Related
- 2012-09-03 WO PCT/EP2012/067130 patent/WO2013045217A1/en active Application Filing
- 2012-09-03 JP JP2014532302A patent/JP5872050B2/en not_active Expired - Fee Related
- 2012-09-03 EP EP12753729.8A patent/EP2724400A1/en not_active Withdrawn
- 2012-09-03 KR KR1020147011489A patent/KR20140069312A/en not_active Application Discontinuation
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2013045217A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103843176A (en) | 2014-06-04 |
US9660257B2 (en) | 2017-05-23 |
JP5872050B2 (en) | 2016-03-01 |
WO2013045217A1 (en) | 2013-04-04 |
DE102011083541A1 (en) | 2013-03-28 |
JP2014534555A (en) | 2014-12-18 |
CN103843176B (en) | 2016-11-16 |
US20140342217A1 (en) | 2014-11-20 |
KR20140069312A (en) | 2014-06-09 |
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