DE102015008347A1 - Electrochemical energy storage - Google Patents
Electrochemical energy storage Download PDFInfo
- Publication number
- DE102015008347A1 DE102015008347A1 DE102015008347.3A DE102015008347A DE102015008347A1 DE 102015008347 A1 DE102015008347 A1 DE 102015008347A1 DE 102015008347 A DE102015008347 A DE 102015008347A DE 102015008347 A1 DE102015008347 A1 DE 102015008347A1
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- Germany
- Prior art keywords
- electrolyte
- electrochemical energy
- cathode
- energy store
- anode
- 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.)
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- 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
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
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- 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
- H01M10/052—Li-accumulators
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
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- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
- H01M10/058—Construction or manufacture
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
Die Erfindung betrifft einen elektrochemischen Energiespeicher (1), umfassend zumindest eine Anode (1.1), eine Kathode (1.2) und einen Elektrolyten (1.3). Erfindungsgemäß ist vorgesehen, dass der Elektrolyt (1.3) mit einem Additiv versetzt ist, welches 5-(1-Methylbutyl)-5-(2-propenyl)-(1H,3H,5H)-pyrimidin-2,4,6-trion umfasst. Die Erfindung betrifft weiterhin ein Verfahren zur Herstellung eines solchen elektrochemischen Energiespeichers (1).The invention relates to an electrochemical energy store (1) comprising at least one anode (1.1), a cathode (1.2) and an electrolyte (1.3). According to the invention, it is provided that the electrolyte (1.3) is mixed with an additive which comprises 5- (1-methylbutyl) -5- (2-propenyl) - (1H, 3H, 5H) -pyrimidine-2,4,6-trione includes. The invention further relates to a method for producing such an electrochemical energy store (1).
Description
Die Erfindung betrifft einen elektrochemischen Energiespeicher gemäß dem Oberbegriff des Anspruchs 1. Weiterhin betrifft die Erfindung ein Verfahren zur Herstellung eines solchen elektrochemischen Energiespeichers.The invention relates to an electrochemical energy store according to the preamble of
Aus
Weiterhin ist aus der
Der Erfindung liegt die Aufgabe zu Grunde, einen gegenüber dem Stand der Technik verbesserten elektrochemischen Energiespeicher anzugeben.The invention is based on the object of specifying an improved over the prior art electrochemical energy storage.
Hinsichtlich des elektrochemischen Energiespeichers wird die Aufgabe erfindungsgemäß mit den in Anspruch 1 angegebenen Merkmalen gelöst. Hinsichtlich des Verfahrens wird die Aufgabe erfindungsgemäß mit den in Anspruch 6 angegebenen Merkmalen gelöst.With regard to the electrochemical energy storage, the object is achieved according to the invention with the features specified in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Ein elektrochemischer Energiespeicher umfasst zumindest eine Anode, eine Kathode und einen dazwischen angeordneten Elektrolyten. Erfindungsgemäß ist vorgesehen, dass der Elektrolyt mit einem Additiv versetzt ist, welches 5-(1-Methylbutyl)-5-(2-propenyl)-(1H,3H,5H)-pyrimidin-2,4,6-trion umfasst.An electrochemical energy store comprises at least one anode, one cathode and an electrolyte arranged therebetween. According to the invention, it is provided that the electrolyte is mixed with an additive which comprises 5- (1-methylbutyl) -5- (2-propenyl) - (1H, 3H, 5H) -pyrimidine-2,4,6-trione.
Mittels des Additivs wird eine Löslichkeit eines in die Kathode interkalierten chemisch aktiven Materials im Elektrolyten minimiert, wobei chemische und elektrische Eigenschaften des elektrochemischen Energiespeichers nicht oder zumindest nur minimal beeinflusst werden. Die Minimierung der Löslichkeit des chemisch aktiven Materials verhindert ein ungewolltes Austreten des chemisch aktiven Materials, z. B. Schwefel in Form von Polysulfiden, aus der Kathode während Ladevorgängen des elektrochemischen Energiespeichers. Dabei wird eine gegenüber dem Stand der Technik verbesserte Stabilität der Kathode hinsichtlich eines Oberflächenverlusts bedingt durch chemisches Herauslösen chemisch aktiver Komponenten der Kathode während des Betriebs des elektrochemischen Energiespeichers erreicht. Zudem ergibt sich daraus eine gegenüber dem Stand der Technik verlängerte Lebensdauer des elektrochemischen Energiespeichers.By means of the additive, a solubility of a chemically active material intercalated into the cathode is minimized in the electrolyte, wherein chemical and electrical properties of the electrochemical energy store are not or at least minimally influenced. Minimizing the solubility of the chemically active material prevents unwanted leakage of the chemically active material, e.g. As sulfur in the form of polysulfides, from the cathode during charging of the electrochemical energy storage. In this case, over the prior art improved stability of the cathode with respect to a surface loss is achieved due to chemical dissolution of chemically active components of the cathode during operation of the electrochemical energy store. In addition, this results in a prolonged compared to the prior art life of the electrochemical energy storage.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand einer Zeichnung näher erläutert.Embodiments of the invention will be explained in more detail below with reference to a drawing.
Dabei zeigt:Showing:
Die einzige
Der elektrochemische Energiespeicher
Die Anode
Der Elektrolyt
Die chemische Reaktion zwischen der Anode
Beim Entladen wird das in der Anode
Beim Laden des elektrochemischen Energiespeichers
Bei einem folgenden Entladen des elektrochemischen Energiespeichers
Zur Lösung des Problems sieht die Erfindung vor, den Elektrolyten
Das Additiv umfasst 5-(1-Methylbutyl)-5-(2-propenyl)-(1H,3H,5H)-pyrimidin-2,4,6-trion, welches vorzugsweise mit einem Anteil von 2,75 Vol.-% im Elektrolyten
Das Additiv wird dem Elektrolyten
Mittels des Additivs wird ein ungewolltes Herauslösen von Schwefel in Form von Polysulfiden in den Elektrolyten
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102012022969 A1 [0002] DE 102012022969 A1 [0002]
- US 2008/0160418 A1 [0003] US 2008/0160418 A1 [0003]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015008347.3A DE102015008347A1 (en) | 2015-06-27 | 2015-06-27 | Electrochemical energy storage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015008347.3A DE102015008347A1 (en) | 2015-06-27 | 2015-06-27 | Electrochemical energy storage |
Publications (1)
Publication Number | Publication Date |
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DE102015008347A1 true DE102015008347A1 (en) | 2015-12-10 |
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DE102015008347.3A Withdrawn DE102015008347A1 (en) | 2015-06-27 | 2015-06-27 | Electrochemical energy storage |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080160418A1 (en) | 2006-12-29 | 2008-07-03 | Industrial Technology Research Institute | Nonaqueous electrolyte having maleimide additives and secondary cells employing the same |
DE102012022969A1 (en) | 2012-11-23 | 2014-05-28 | Li-Tec Battery Gmbh | Electrochemical cell |
-
2015
- 2015-06-27 DE DE102015008347.3A patent/DE102015008347A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080160418A1 (en) | 2006-12-29 | 2008-07-03 | Industrial Technology Research Institute | Nonaqueous electrolyte having maleimide additives and secondary cells employing the same |
DE102012022969A1 (en) | 2012-11-23 | 2014-05-28 | Li-Tec Battery Gmbh | Electrochemical cell |
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Date | Code | Title | Description |
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R230 | Request for early publication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |