WO2015018751A1

WO2015018751A1 - Lithium-ion battery

Info

Publication number: WO2015018751A1
Application number: PCT/EP2014/066577
Authority: WO
Inventors: Joerg Thielen; Bernd Schumann
Original assignee: Robert Bosch Gmbh
Priority date: 2013-08-09
Filing date: 2014-08-01
Publication date: 2015-02-12
Also published as: DE102013215732A1

Abstract

The invention relates to a lithium-ion battery, comprising at least one cell separated from the outer surroundings by a cell housing, wherein an anode, a cathode, a separator arranged between the anode and the cathode, and an electrolyte arranged between the anode and the cathode are arranged inside the cell housing, wherein at least one oxygen scavenger is arranged inside the cell housing and is fluidically connected to at least one of the anode, the cathode, the separator arranged between the anode and the cathode, and the electrolyte arranged between the anode and the cathode. In a simple and economical way, a lithium-ion battery can enable especially reliable operation that is stable over a long period.

Description

description

title

Lithium-ion battery prior art

Lithium-ion batteries are used today in a variety of products as energy storage. For example, these can be used as energy storage for electricity from solar cells or wind turbines, in vehicles and

be provided electronic devices.

Such energy stores are often constructed of a cathode, an anode, a separator and a non-aqueous electrolyte. The selection of the components can have an influence on the performance and the life of the energy storage. The goal of choosing the

Among other things, components may be the enabling of forming a stable electrode protective layer. Such a protective layer is known for example under the name SEI (Solid Electrolyte Interphase) and can be formed in particular advantageously by the selection of a suitable electrolyte. Furthermore, additives may be provided which the

Allow or improve the formation of such a protective layer.

Disclosure of the invention

The subject of the present invention is a lithium-ion battery comprising at least one cell separated from the external environment by a cell housing, wherein inside the cell housing an anode, a cathode, a separator arranged between anode and cathode and an anode and cathode arranged Electrolyte are arranged, being inside the cell housing and in fluid communication with at least one of the anode, the cathode, the separator arranged between the anode and cathode and the anode and cathode arranged between the electrolyte is arranged at least one oxygen scavenger.

In the context of the present invention, a lithium-ion battery can be understood as meaning, in particular, such an electrochemical energy store which, during a charging or discharging process, is based in particular on lithium or lithium-ion-based electrochemical energy storage

Includes operations. A battery may further comprise both a primary battery, as well as a rechargeable battery, so a

Be secondary battery.

For the purposes of the present invention, an oxygen scavenger may in particular be understood to mean such a component, which is oxygen, in particular gaseous, that is to say molecular, but also oxygen

Oxygen atoms, oxygen ions and / or oxygen radicals from the

Remove environment and bind to yourself.

A prescribed lithium-ion battery can make it possible, in a simple and cost-effective manner, to have a particularly safe and reliable battery

to allow long-term stable operation.

The lithium-ion battery comprises at least one cell separated from the external environment by a cell housing. The external environment may in particular be the atmosphere surrounding the cell. Arranged in the cell and inside the cell housing are an anode, a cathode, a separator arranged between the anode and cathode, and an anode and cathode and these ionically conducting arranged arranged electrolyte, in understandable to those skilled in the art only one of the components or a plurality of selected or all of the aforementioned components may equally be provided. In addition, each of the above-described components can be arranged in a way which is understood by a person skilled in the art only at least partially or completely within the cell housing. The cathode can be, for example, lithium cobalt oxides, lithium manganese oxides, lithium nickel oxides, lithium mixed oxides or other lithium intercalation compounds or lithium insertion compounds as

Have active material, which may be disposed on an electrode material, for example, and not limited to a metallic material.

For example, the anode may include lithium metal, carbon compounds such as graphite, or lithium intercalation compounds or lithium insertion compounds such as suitable titanates or alloys as the active material disposed on an electrode material, for example, and not limited to a metallic material can be.

In addition, the active material of the electrodes can be present in a manner known per se in a binder, such as polyvinylidene fluoride (PVDF), and further additives, such as conductive additives, can be provided.

As a separator, for example, membranes, such as polyolefins, for example polyethylene (PE), polypropylene (PP), polyimides or

Polyvinylidene fluoride (PVDF), find use. Also suitable are organic or inorganic nonwovens. The separator material may be functionalized or coated, for example, the

Increase lithium ion conductivity or catch HF. The separator is used in a conventional manner to separate the electrodes spatially and electrically within the battery cell from each other.

As an electrolyte, which in a known manner has the task of producing an ionic conductivity between the electrodes in the interior of the cell, in particular non-aqueous systems can be used. Here, for example, a solution of organic or inorganic salts may be provided in a mixture of one or more organic solvents. Examples of suitable solvents here are cyclic carbonates, such as ethylene carbonate (EC), propylene carbonate (PC),

Butylene carbonate (BC), vinylene carbonate (VC), vinyl ethylene carbonate (VEC), fluoroethylene carbonate (FEC), or higher fluorinated homologs; non-cyclic linear carbonates, such as dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), diethyl carbonate (DEC), methyl propyl carbonate (MPC), Isopropylmethylcarbonate (IPMC), butylmethylcarbonate (BMC), tertbutylmethylcarbonate (TBMC), ethylpropylcarbonate (EPC);

Carboxylic acid esters such as methyl formate, methyl acetate, methyl propionate, methyl pivalate, ethyl propionate; Ethers, such as tetrahydrofuran, 2-methyl-tetrahydrofuran, 1, 4-dioxane, 1, 3-dioxalane, 1, 2-dimethoxyethane, 1, 2-diethoxyethane; fluorinated ethers and fluorinated esters. Further, lactones such as γ-butyrolactan (GBL) are nitriles such as acetonitrile, propionitrile, ketones, lactams such as N-methylpyrrolidone, or sulfur-containing organic ones

Solvents such as dimethyl sulfoxide, sulfolane, methylsulfolane, diethylsulfone suitable. The abovementioned solvents can be used alone or in any combination.

In addition to one or more of the aforementioned solvents, the nonaqueous electrolyte systems may further preferably contain an electrolyte salt. Such an electrolyte salt may, for example, be present in a concentration in a range of greater than or equal to 0.3 mol / l to less than or equal to 2.0 mol / l, for example greater than or equal to 0.5 mol / l to less than or equal to 1.5 mol / l. Examples of suitable electrolyte salts or conductive salts are lithium salts such as LiPF ₆ , LiSbF ₆ , LiClO ₄ , LiBF ₄ , LiCF ₃ SO ₃ , LiAsF ₆ , LiN (CF ₃ SO ₂ ) ₂ , LiCF ₃ (CF ₂ ) ₃ SO ₃ , LiN (S0 ₂ C _x F _{2x + 1} ) 2, LiC (S0 ₂ C _x F _{2x + 1} ) 3, where x is in a range between 0 and 19, or LiC ₄ B0 ₈ . The

The aforementioned salts can be used alone or in any combination.

Furthermore, one or more additives may be provided in the electrolyte system or in other components of the lithium-ion battery, which are basically not limited in their nature and effect. For example, the additives may serve to form a stable protective layer on the

To enable or to improve electrodes (SEI protective layer).

When operating the lithium-ion battery, it can be used, for example, in the use of lithium insertion compounds or lithium intercalation compounds, for example when using HE-NCM compounds, the so-called layered-layered oxides, such as x Li ₂ MnO ₃ (1-x) LiM0 ₂ (with M = Ni, Co, Mn or a mixture of at least two of the aforementioned metals), wherein x depending on the metals used may be selected by application, for example according to MM Thackeray et al., J. Mater. Chem. 17, 31 12, 2007, or in using more

Oxygen-releasing compounds in an electrochemical activation and / or in an overload of the cell due to structural

Changes in the cathode material for the formation or release of reactive, in particular molecular and / or atomic and / or free-radical and / or ionic oxygen come. On the one hand, the oxygen thus formed or released can adversely affect an SEI formation, in particular in the first cycles of the cell, since it can react with additives and / or other electrolyte or SEI constituents and these reaction products or

Decomposition products can disrupt the SEI education process. In addition, the amount of oxygen formed depending on the material may be sufficient to catalyze in addition to the formation of unwanted pressure in the cell further side reactions such as electrolyte decomposition, or to react with a lithium-containing electrode, in particular anode but also cathode.

In order to prevent or at least significantly reduce the above-mentioned processes, it is provided in a prescribed lithium ion battery that is inside the cell case and in direct fluid communication with at least one separator disposed between the anode and the cathode, the anode and the cathode separator and the electrolyte disposed between the anode and the cathode is arranged at least one oxygen scavenger.

In particular, at least one oxygen scavenger can be arranged on the anode side or preferably on the cathode side. As already stated, serves a

Oxygen catcher in particular to oxygen, especially gaseous oxygen, but also oxygen atoms or oxygen radicals, or to bind oxygen ions and thus from the environment

or in particular to remove from the arranged inside the cell volume. Thus, it can be prevented that the oxygen formed can exert unwanted or defective effects.

An arrangement of at least one oxygen scavenger in fluidic connection to one or more of the aforementioned components may in particular mean that in particular formed gaseous oxygen or other oxygen species, if they are potentially in one of the aforementioned components would be equally reach the oxygen scavenger, so for example, a gas transport or other example, fluidic transport, between the oxygen scavenger and the corresponding component is possible. This can be possible, for example, through an immediate spatial connection.

The exact arrangement of the oxygen scavenger can basically be chosen freely, insofar as the above condition is met. However, certain positioning may be particularly advantageous, as explained in detail below. In addition, the nature of the oxygen scavenger can basically be freely selected, insofar as the

Oxygen catcher is suitable, in particular under the operating conditions of the lithium-ion battery to remove oxygen from the environment or from the interior of the cell or at least significantly reduce the oxygen concentration. In this case, only one oxygen scavenger can be provided or a basically arbitrary plurality

Oxygen scavengers, the position as well as the type of oxygen scavengers in principle for each of the oxygen scavengers used can be freely selectable.

By providing an oxygen scavenger, as explained above, it can thus be made possible that, for example, in the case of an overload or

Activation of the cell resulting oxygen is bound and thus removed from the environment, whereby, for example, a chemical reaction of oxygen with other cell components, such as components of the

Electrolyte, can be prevented. This allows the battery to operate in a particularly reliable and long-term stable manner, since oxygen-based undesired and defective side reactions with one or more components of the battery, such as with electrolyte components, can likewise be prevented or at least significantly reduced. Furthermore, in an above-described lithium-ion battery, an impairment of

Cell life by possible interactions of the no longer occurring oxidation products with the cell materials largely excluded.

In addition, pressure build-up inside the cell can be prevented. This can allow the cell to work very safely because of environmental hazards, such as in the environment of the battery persons, for example by a through a

Oxygen-forming overpressure in the cell is prevented or at least significantly reduced. Furthermore, damage or destruction of the cell can be prevented or at least significantly reduced by this overpressure, which can further improve the reliability and longevity of the cell.

In summary, in a lithium-ion battery according to the invention in a simple and cost-effective manner, a particularly safe and long-term stable work can be made possible.

Within the scope of one embodiment, the oxygen scavenger can be configured to sorb oxygen, that is to adsorb or absorb, in particular selectively, for example, toward argon, a noble gas or nitrogen, or to react chemically with oxygen. In particular, in this embodiment, a particularly safe and effective interception of formed, in particular gaseous, or even atomic or free-radically or ionically present oxygen are possible. In addition, the

The aforementioned solutions are available inexpensively and thereby the positioning and also the specific nature of the oxygen scavenger particularly easily adaptable to the desired field of application. With respect to the oxygen scavengers, which react chemically with oxygen, these may be particularly advantageous to the oxygen formed permanently and in the

Working conditions of a lithium-ion battery in particular irreversible from the environment to remove. For the corresponding oxygen scavengers can then be selected such that, although they are oxidized in a simple manner by contact with oxygen, in particular under the conditions prevailing when the battery is operated, for example, but

Do not re-release oxygen under the conditions mentioned, so in this case, in particular, the oxygen scavenger oxidized by the trapped oxygen can not be reduced again under the operating conditions of the lithium-ion battery.

In another embodiment, the oxygen scavenger may comprise at least one of an oxidisable metal, oxidisable metal oxide, an unsaturated organic compound, in particular a polymeric compound, especially in combination with a catalyst, a zeolite or an antioxidant.

Here, for example, pure metal oxides, such as pure

Transition metal oxides, or mixed oxides, such as transition metal mixed oxides, with a valence of less than or equal to 3 are particularly suitable, which can be converted by chemical reaction with the oxygen into a corresponding oxide, such as a mixed oxide, for example, a valence of 4. As a particularly preferred example here cerium may be mentioned, which may be present as ceria (CeO _x with x less than 2) as oxygen scavenger and is reacted or oxidized with oxygen as to cerium (II) oxide (Ce0 ₂ ). In this case, CeO _x with x less than 2 may be preferred because of its high ability to trap oxygen. The corresponding metals or metal oxides of titanium, iron, cobalt, nickel, aluminum, magnesium, tin, chromium or zinc and mixed oxides of these metals with one another or with cerium are likewise particularly preferably suitable.

With regard to the unsaturated organic compound, it may in particular be such an unsaturated compound which has C-C multiple bonds, in particular double bonds. In this case, the organic compound may be a monomeric compound, an oligomeric compound or a polymeric compound. Preferred of these oxygen scavengers thus include unsaturated hydrocarbons. Examples of monomeric compounds may be terpenes. Suitable examples of polymeric compounds include, but are not limited to, polydienes such as

Polybutadiene, such as ice and trans 1, 2- or 1, 4-polybutadienes, polyisoprenes, especially trans-polyisoprene, or copolymers thereof, such as styrene-butadiene copolymers. Also suitable as examples are polyethylenes, such as polypentenamer, polyoctenamer, polycyclohexenes and polymers from cyclic olefin metathesis, as well as diene oligomers, such as norbornadiene, 5-ethylidene-2-norbornene, or vinylcyclohexenes. Functionalizations of the unsaturated hydrocarbons, for example with oxygen-containing side chains, may be advantageous for improving the physicochemical properties. In principle, the organic compound can be ion-conducting or porous and sufficiently permeable in order to influence the operation of the lithium-ion battery as slightly as possible. To the process of oxygen binding To accelerate, in particular catalysts can be added to organic as well as polymeric compounds. Examples of such

Catalysts include, for example, transition metal catalysts, in the form of the pure metal, as a salt, as a complex or chelate of the (transition) metal, which can accelerate the oxidative process, with nickel, manganese (II or III), and cobalt (II or III ) Catalysts are exemplified here.

In principle, the transition metals of the first, second or third transition series of the Periodic Table of the Elements are suitable, the catalysts not being restricted to such examples. In addition, the metals or metal oxides described above, such as cerium or cerium oxide or else iron or iron oxide can be incorporated into the organic compounds, in particular into the polymers, in order to accelerate the oxidative process.

In addition, antioxidants are also advantageously suitable for binding oxygen formed and thus from the environment or from the environment

Remove cells inside to prevent unwanted reactions or an undesirable increase in pressure in the cell. Examples of such antioxidants include, for example, BHT (2,6-di-tert-butyl-cresol), ascorbates, or triphenyl phosphite. These substances, like the other abovementioned oxygen scavengers, in particular in a combination of different oxygen scavengers, serve in addition to the actual function of suppressing or delaying the degradation of the oxygen scavenger prior to the use according to the invention, for example during electrode production. Under an antioxidant can in a conventional manner, in particular a

Radical scavengers are understood, which binds the oxygen radicals occurring in an oxidation reaction and thus can prevent or at least significantly reduce an oxidation reaction.

In a further embodiment, at least one oxygen scavenger can be integrated into an electrode. In particular, the oxygen scavenger can be integrated into a cathode, but also an anode.

For example, the oxygen scavenger can be present embedded in pores of the electrode or in particular of the electrode material as a carrier for the active material. In this example, the Oxygen scavengers thus unfold their effect in a place in whose immediate vicinity active material is present. In this case, as stated above, for example, be bound by a chemical reaction of oxygen and removed from the environment, so that the oxygen can not enter the space of the cell or the electrode to about a reaction with a

Component of the electrode to prevent. Here, the oxygen scavenger can be involved in a suitable manner in the manufacturing process of the electrode. In particular, here the oxygen scavenger can be an oxidizable compound as described above, in particular an oxidisable metal oxide, or an organic, in particular polymeric, compound. It can be applied to the electrode itself or into the pores of the electrode before the electrode is installed in the cell in the form of a coating process, or as a coating directly onto the same and before processing of the active material as follows whose pores are applied.

Additionally or alternatively, the oxygen scavenger can be homogeneously integrated into the electrode active material or as a coating of the

Be carried active material particles. For example, at least one oxygen scavenger can be arranged in or integrated into the electrode active material of the cathode. In this embodiment, the oxygen scavenger can be integrated into the production process of the active material and protect as a coating or homogeneously in the interior of the active material, such as by a chemical reaction with the oxygen formed, the cell materials, in particular those in the interior of the active material

resulting or exiting oxygen, for example, completely binds by a chemical reaction. This can be realizable by a reaction of the oxygen with the oxygen scavenger. This can prevent the oxygen formed in the active material from entering the space of the electrode or the cell. As a coating, in addition to the

above-described mixed oxides, in particular a prescribed organic or polymeric substance find use, or a combination thereof.

Furthermore, the oxygen scavenger can be introduced into the active material slurry directly or in the form of a suitably functionalized binder, such as based on polyvinylidene fluoride (PVDF), for example during the production of the electrode and so embedded in the electrode. In particular here can the

Oxygen scavenger is an oxidizable compound as described above, an oxidizable metal oxide, or an organic compound which is present approximately in side chains of the binder material or otherwise connected to the binder. In the case of the organic or in particular the polymeric compound as an oxygen scavenger, this itself can be partially

(Copolymer with PVDF) or fully perform the function of the binder, which then in the latter case can be dispensed with the additional addition of a binder. In this case, the oxygen scavenger can be distributed very homogeneously in the electrode by adding it to the slurry during the production process of the electrode. A combination with transition metal catalysts according to the invention is conducive to the above-described oxygen-binding mode of operation.

Alternatively or additionally, the oxygen scavenger may be used as a coating

or coating on active material particles, in particular cathode active material particles. Such an oxygen scavenger can thus be present protectively on the active material particles and, for example, have a protective effect by a chemical reaction with the oxygen. Thus, it is possible to cause the oxygen developed or emerging in the electrodes inside the active material particles to become completely bound, so that the oxygen can no longer enter the space of the electrode or cell from the active material particles. In particular, a previously described organic or polymeric substance can be used here.

In the context of a further embodiment, at least one oxygen scavenger can be present as an inner coating of the cell housing. In this embodiment, trapping of oxygen formed or an oxygen species formed independently of the position of the emergence can be realized in particular when the entire or at least a majority of the inner housing is coated with a layer having the oxygen scavenger. For example, a particularly simple coating of this kind can be made possible if the coating has an organic or polymeric material configured as described above. In the context of a further embodiment, at least one oxygen scavenger can be integrated in the separator. In particular, the oxygen scavenger may be present in or on the separator. In this embodiment, the

Oxygen scavengers, for example, be present as a coating on the separator and / or arranged approximately on the anode side or in particular on the cathode side. As a result, the oxygen scavenger, again for example by a chemical reaction and at a location not directly on an electrode, protectively intervene, so that formed in the interior of the active material oxygen chemically binds completely, so that the oxygen trigger no further oxidation processes and / or catalyze can. In particular, there is no diffusion of oxygen from the cathode to the anode or vice versa. Furthermore, it is conceivable that the oxygen scavenger, for example in the form of an organic, for example polymeric, compound is present as a copolymer mixed with the actual separator material or even as this is carried out. Alternatively or additionally, the separator can be configured in multiple layers. For example, the separator can be carried out in three layers, wherein a layer having the oxygen scavenger can be surrounded by two conventional separator layers.

In a further embodiment, at least zeolite material or a molecular sieve can be present in the interior of the cell. For example, the zeolite material may be an approximately modified alumino-phosphate or alumino-silicate having a cavity-containing framework structure. The zeolite material can serve, for example, itself as an oxygen scavenger, or a

Oxygen scavenger can be bound or integrated in the zeolite material or in its pores. In this embodiment, the nature of the oxygen scavenger may in principle be freely selectable, although examples with unsaturated organic substances, including polymers, can preferably be arranged on zeolites. This can be realized, for example, by introducing the substances into the pores of the zeolites, where they are immobilized, for example because of interactions, in particular by the adsorption capacity of zeolites known to those skilled in the art.

The same applies in a manner understandable to those skilled in the art for

other oxygen scavengers described above, such as for the oxidizable compounds, such as metals or metal oxides. The zeolites or the organic substances for themselves can then for example in a Polymer or introduced into the slurry, for example, in the

Electrode to be arranged.

In the context of a further embodiment, at least one oxygen scavenger can be present at an opening and / or at a connection position of the housing. In this embodiment, with the oxygen scavenger

For example, openings or connection positions, such as

Connection points or connecting lines of the cell housing, for example, coated and sealed so that even penetration of very small amounts of atmospheric oxygen at these critical points from the outside into the cell can be excluded. A connection position may include, for example, a sealed seam or a position at which different parts of the housing are joined together. An opening of the housing may for example be an arrester version. In particular, in this embodiment may be an organic, such as polymeric, execution of the oxygen scavenger be preferred because they allow a particularly simple sealing of the openings or connection positions.

In a further embodiment, at least one means for

Capture at least one other substance, so a substance other than oxygen or oxygen species, be provided. In this

Embodiment can thus be achieved a multi-functional design, in which not only oxygen but also further potentially harmful

Substances from the environment or from the cell interior, ie from the area within the cell housing, can be removed. Exemplary as another potentially harmful substance, which may occur during operation of a lithium-ion battery, for example, to mention hydrogen fluoride (HF). For example, correspondingly effective nucleophilic groups, such as nitrogen bases, can be incorporated into a backbone or side chain of a polymer

Oxygen scavenger be incorporated. Phosphazene units in the polymer are also conceivable as HF scavengers.

In the context of a further embodiment, at least one oxygen scavenger can be immobilized on an inert support structure, in particular wherein the support structure is designed in the form of a mat, a roll, a fleece or a bag. An inert support structure is made of a material configured, which is not active on the loading or

Discharge the cell involved. A mat is also a planar porous structure of a certain thickness that can be flexibly mounted in the cell in an otherwise unfilled space. A role can

For example, have a tubular structure, which may be configured as a curved mat about. In particular, a structure may be referred to as a bag, which represents a porous system but closed with respect to leakage of the oxygen scavenger. In particular, a nonwoven fabric is a structure consisting of fibers passing through a web

unordered random method are connected. Woven or braided structures can also be used to contain the oxygen scavenging particles.

For example, in one roll, an amount of active oxygen scavenging particles can be rolled in a layer and sealed at the ends. Likewise, the active material can be stored, for example, as granules in a bag which is closed. In these embodiments, the oxygen scavenger can in turn be arranged inside the cell. Thereby, the advantage can be achieved that the catcher is not incorporated directly into the electrode structure, where it could reduce the energy density in the electroactive mass, since it does not participate in the electrochemical reaction but increases the mass of the electrode. Similarly, the ohmic or ionic resistance of the electrodes can be kept lower if such a catcher material, which is often non-conductive, does not extend the path of electrical or ionic current flow.

Inside the cell next to the electrodes, which may be configured as an electrode winding, for example, the oxygen scavenger can protect, for example, by a chemical reaction in a place where no

Electrode material is by chemically completely binds the resulting inside the active material or exiting oxygen, which dissolves in the electrolyte, so that the oxygen can trigger any further oxidation processes and / or catalyze.

The oxygen scavenger may also be mounted in the part of the cell which is filled with electrolyte and where there is no electrode coil. For example, the support structure may be located at the bottom of the cell and secured with clamping sheets or on the winding body so that it can not rupture. In principle, all oxygen scavengers can be used in this bag.

Claims

claims

1 . Lithium-ion battery, comprising at least one cell separated from the external environment by a cell housing, wherein inside the

Cell housing an anode, a cathode, a separator disposed between the anode and cathode and arranged between the anode and cathode electrolyte are disposed within the cell housing and in fluid communication with at least one of the anode, the cathode, the separator disposed between the anode and cathode and the electrolyte disposed between the anode and the cathode is arranged at least one oxygen scavenger.

The lithium ion battery of claim 1, wherein the oxygen scavenger is configured to sorb oxygen or to chemically react with oxygen.

3. The lithium-ion battery according to claim 2, wherein the oxygen scavenger

at least one of an oxidizable metal, an oxidizable metal oxide, an unsaturated organic compound, a zeolite and an antioxidant.

4. Lithium-ion battery according to one of claims 1 to 3, wherein at least one oxygen scavenger is integrated into an electrode.

5. Lithium-ion battery according to one of claims 1 to 4, wherein at least one oxygen scavenger is present as an inner coating of the cell housing.

6. Lithium-ion battery according to one of claims 1 to 5, wherein at least one oxygen scavenger is integrated into the separator.

A lithium-ion battery according to any one of claims 1 to 6, wherein at least one zeolite material is present in the interior of the cell.

8. Lithium-ion battery according to one of claims 1 to 7, wherein at least one oxygen scavenger at an opening and / or at a

Connection position of the housing is present.

9. Lithium-ion battery according to one of claims 1 to 8, wherein at least one means for capturing at least one further substance is provided.

10. Lithium-ion battery according to one of claims 1 to 9, wherein at least one oxygen scavenger is immobilized on an inert support structure, in particular wherein the support structure in the form of a mat, a roll, a non-woven fabric or a bag is configured.