DE102018003328A1 - Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid - Google Patents

Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid

Info

Publication number
DE102018003328A1
DE102018003328A1 DE102018003328.8A DE102018003328A DE102018003328A1 DE 102018003328 A1 DE102018003328 A1 DE 102018003328A1 DE 102018003328 A DE102018003328 A DE 102018003328A DE 102018003328 A1 DE102018003328 A1 DE 102018003328A1
Authority
DE
Germany
Prior art keywords
cell
battery cell
preferably
solid
li
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.)
Pending
Application number
DE102018003328.8A
Other languages
German (de)
Inventor
wird später genannt werden Erfinder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENVITES ENERGY GES fur UMWELTTECHNIK und ENERGIESYSTEME MBH
Envites Energy Gesellschaft fur Umwelttechnik und Energiesysteme Mbh
Original Assignee
ENVITES ENERGY GES fur UMWELTTECHNIK und ENERGIESYSTEME MBH
Envites Energy Gesellschaft fur Umwelttechnik und Energiesysteme Mbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ENVITES ENERGY GES fur UMWELTTECHNIK und ENERGIESYSTEME MBH, Envites Energy Gesellschaft fur Umwelttechnik und Energiesysteme Mbh filed Critical ENVITES ENERGY GES fur UMWELTTECHNIK und ENERGIESYSTEME MBH
Priority to DE102018003328.8A priority Critical patent/DE102018003328A1/en
Publication of DE102018003328A1 publication Critical patent/DE102018003328A1/en
Application status is Pending legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/446Initial charging measures
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

Abstract

The invention relates to a method for producing a battery cell, preferably a Li-ion Bi-stack cell with solid, wherein after a first charging (21) of the filled battery cell (10) with electrical energy forming in at least two forming steps (23, 24) is carried out, wherein before and / or after each of the at least two forming steps (23, 24) at least one degassing step (25) with an externally applied to the battery cell (10) energetic excitation (26) and at least one aging step (27) is performed , For long-axis cells longer than 40 cm, an energetic excitation (26) occurs from the center of the geometry.

Description

  • The invention relates to a method for producing a battery cell, preferably a Li-ion Bi stacked cell with solid.
  • Battery cells are usually the smallest encapsulated electrochemical unit electrochemical energy storage, which are also referred to as galvanic cells. The present invention is also preferably applicable to bi-stacks of electrochemical transducers or capacitive elements.
  • There are primary, ie non-rechargeable lithium batteries and secondary, rechargeable lithium batteries and cells, or cell systems. Their material combinations and nominal stress levels as well as energy densities have a broad field. The present invention is not limited to a particular combination of materials, for example, the cathode with respect to a metal oxide or an olivine material (polyanionic) or a manganese phosphate, but may relate to a variety of material combinations, as well as layered phosphate materials, various, also mixed oxides, spinels and the like. As well as preferably using solid materials or bi-cell electrodes and various contacts. It is preferably also zinc, sodium, magnesium or sulfur as a basic eponymous element for battery cell systems.
  • Preferably, lithium metal layers and solids or solids (solid state battery cell) may be included, but also elements of an air system or a sulfur or magnesium battery and the like.
  • Lithium batteries and lithium-ion batteries or hybrid systems, such as preferably a combination of lithium metal and Li secondary battery can be formed in various ways, preferably as Bi-, stack or winding cells, the latter also in a combined stacking or winding arrangement. A simple embodiment is preferably formed as a negative electrode / separator / cathode. Thus, it is also possible for a plurality of stacks, windings, electrode / separator arrangements or combinations with different properties to be integrated in one battery cell.
  • About a stacking cells of different systems with substantially the same shape and basically the same properties in comparable electrodes and basically different thickness or weight can be produced by at least two or more stacking. This allows a high flexibility in production can be achieved. Such a cell may be formed from a stacked arrangement of the electrode or separator composite. In this case, prefabricated parts thereof can be arranged in a composite, such as a solid composite or a protective layer, one or more coils, or a functional layer such as a corrosion protection layer. These are processed in the manufacture of the cell optionally or in combination with other cell components.
  • Preferably, the prefabricated elements of the cell have different thicknesses or dimensions. For the purposes of the invention, the functional components of an electrochemical cell involved in the storage and / or capacitive processes are referred to here as stacks, including one or more optionally provided additional devices such as sensory, anticorrosive, insulating, safety-supporting or stabilizing the intermediate layers elements. Such elements may for example be independent of the cell as such, as a sensor or integrated into the cell, such as a stabilizing heat protection layer.
  • The configurable to a battery cell stack are sometimes wrapped or wrapped with an additional material, which can also serve as an electrolyte reservoir and / or safety is conducive, for example, by insulating properties, as short-circuit and / or as deformation protection. The packaging of the battery cell can represent such a wrapping or wrapping. Thus, for example, a Totleiter be arranged, which dissipates the current in the case of short circuits and prevents heating of the active materials, in which he absorbs the heat energy. A plurality of stacks or reels and additional elements and / or functional layers can be arranged in a battery cell. Advantageously, by means of such a stacking concept, a comparatively improved use of space and, due to homogeneity in the structure, an improved service life of the cell can be achieved. Such cell arrangements can also be stacked, dish-shaped, semicircular, honeycomb-shaped, knob-cell-shaped or even cylindrical, with a prismatic design being the most common application.
  • Such battery cells can be installed in different function, property and combination to battery modules, preferably on modules, or batteries and used in very different market applications. The invention will be described in relation to motor vehicle applications, but preferably there are applications of almost technical nature of unlimited nature, which also stationary character, but also industrial batteries, the military, the air and Space, equipment, tools and other equipment.
  • Various methods are known from the prior art, which relate to a method for producing a battery cell. In this case, steps such as formation, classification / sorting / grading or aging / aging are generally known, but are not sufficiently detailed for a high yield. See also brochure: "PRODUCTION PROCESS OF A LITHIUM-ION BATTERY CELL", Aachen, Frankfurt am Main, October 2015 PEM and VDMA self-printing, 2nd revised edition.
  • The present invention preferably has a higher yield of high quality of the battery cells in industrial production with preferably a Li-ion Bi stacking cell in different choice electrochemical system, also with solid, to provide in large-sized cells. The so-called new cell formats in the large-scale cell area should be able to be imaged in the process, the format of which should comprise a length of preferably 40 cm to 140 cm. The process steps should be purposefully updated in order to fulfill the task. On this basis, therefore, the invention provides the object to provide an improved method for the production of battery cells available, which is achieved according to claim 1. This is achieved according to the invention by the teaching of the independent claims. Advantageous embodiments of the invention are the subject of the dependent claims.
  • To achieve the object, a method for producing a battery cell, preferably a Li-ion Bi-stacked cell with solid proposed according to claims 1 et seq. Proposed, wherein after a first charge the filled battery cell with electrical energy, the formation in at least two forming steps is carried out. Before and / or after each of the at least two forming steps, at least one degassing step is carried out with an energetic excitation applied from the outside to the battery cell and at least one aging step. The dependent claims relate to advantageous developments of the inventions.
  • The proposed method sets in particular after the process step of filling the battery cell with an electrolyte and the impregnation of the electrolyte, as far as this is performed in the production of the battery cell, because the required for the battery cell content of electrolyte can already arranged in the arrangement with at least alternately Be contained cathodes and anodes. This is the case for example in embodiments in which a type of solid electrolyte is used.
  • After filling, the usual steps in the production of prismatic composite film cells (housing material) are also referred to here as pouch cells or Li-polymer on the market, such as wetting-formation-grading-classifying and sorting prior to delivery, a novel process step combination described in an inventive manner On the one hand solve many safety-related questions and the performance of the battery cells efficiently and with high yield and on the other hand ensure a very high quality, which is determined over the entire life of the battery cell.
  • A solid electrolyte or solid electrolyte is preferably a material in which there is at least one type of ion movable so that an electric current can flow. Such a material is electrically conductive, but in contrast to a metal has no or only a low electronic conductivity. Examples of solid electrolytes or solid electrolytes are in plastics and / or plastics and their ion sources contained in derivatives or mixtures. The packaging ( 9 ) of the battery cell ( 10 ) is preferably designed to be at least partially flexible in shape, preferably as a so-called polymer cell or pouch cell.
  • If in the manufacture of the battery cell no filling of these with an electrolyte is required, then the method steps of the proposed method are followed by the first charging of the battery cell with electrical energy after the production of the electrode arrangement and the arrangement of the packaging on the electrode arrangement and preferably the impregnation of the electrolyte in the example of Li-ion cells. If a cell concept such as preferably a bi-cell concept with a length of 60 cm with a solid component containing the necessary electrolyte, is already installed, thus eliminating an impregnation or is only partially carried out. The first charging of the battery cell with electrical energy already takes place before the later formation steps, in which the actual charging of the battery cell with electrical energy. The proposed first charging is used to eliminate frequently existing metallic impurities of anode and / or cathode, which lead to loss of quality of the battery cell in their whereabouts. In the proposed first charging, an electrical energy is applied to the battery cell which is dimensioned to merge with the anode / cathode metal contaminants prior to forming the battery cell with the anode or cathode material of the cell. As a result, in particular the conductivity of the anode or cathode material and in this way the quality of the later battery cell is improved.
  • After initial charging, the proposed method involves forming in at least two forming steps. Before and / or after each of the at least two forming steps, at least one degassing step takes place with an energetic excitation applied externally to the battery cell and at least one aging step. During the formation, the battery cells are cyclically charged and discharged in particular with increasing current intensity. In conjunction with the electrolyte, a protective layer forms on the anode, which is referred to as the solid electrolyte interface (SEI). It should be emphasized that it is possible in combination of the inventive steps and according to the claims to form particularly stable such layers as SEI, which are also comparatively thin. So on the anode and cathode side.
  • A suitable formation represents a decisive factor for the life of the cell. Usually, several cells are formed simultaneously in one charging station.
    In the proposed method, each of the at least two forming steps at least one upstream and / or downstream degassing step, which includes at least one applied externally to the battery cell energetic excitation. Such energetic excitation can have different forms. For example, a mechanical action such as applying a pulse to the battery cell or, for example, heating the battery cell may be a suitable energetic excitation that excites a forming gas forming gas to escape from the battery cell so that it may be dissipated therefrom. Such energetic excitation and the resulting improved degassing of the battery cell has a direct and advantageous effect on the quality of the manufactured battery cells and the efficiency of the manufacturing process and is accompanied by a beneficial, because more efficient formation. Last but not least, an improved degassing achieved thereby also represents a significant influencing factor for the safety of the battery cells, since in the example of the Li-ion cells, Li deposits and defects in the intercalation are preferably reduced or even avoided. Intercalation is understood to mean the reversible incorporation of ions, atoms and / or molecules in chemical compounds whose molecular structure does not change significantly as a result of the incorporation.
  • In the proposed method, at least one aging step is carried out before and / or after each of the at least two forming steps. As you age, cell-internal shorts are identified. At the same time, changes in the characteristics or performance data of the battery cell can be monitored. In the proposed method, the aging can be carried out, for example, at temperatures in the range of room temperature, in particular at a temperature between 20 ° C and 25 ° C.
  • In one embodiment of the proposed method, an energetic excitation is applied to the battery cell before a first forming step in order to improve the distribution of the electrolyte contained in the battery cell. This step is used in particular to improve the required for the function of the battery cell in particular complete wetting of the anode and cathode by the electrolyte. An energetic excitation provided here can correspond to the energetic excitation as previously described for exciting the gas forming during the formation to escape from the battery cell. Thus, for example, a distribution of the electrolyte exciting suitable mechanical action or heating of the battery cell can take place. Such energetic excitation has an advantageous effect on the wetting of the anode and cathode by the electrolyte and thus directly on the quality of the battery cells produced. After improving the wetting of the elements of the battery cell with the electrolyte, a step for charging the battery cell may follow.
  • [4] In one embodiment of the method, the first charging takes place at 0.007 C, preferably over 35 minutes, preferably within 1 to 4 hours after reaching the process status battery cell. Such set charging is particularly suitable for eliminating unwanted metallic contaminants, which advantageously contributes to safety and quality.
  • [5] In one embodiment of the method, the first forming step is performed in at least three stages, which differ in particular in the duration and in the current loading of the battery cells. In one embodiment of the method, this first forming step leads to a state of charge of up to 30% at 25 ° C. By the proposed first forming step, an advantageous thin and stable, relatively homogeneous protective layer on the anode (SEI = Solid Electrolyte Interface) can be generated, which has a positive effect on the essential properties of the battery cell, such as longevity, safety and their performance. [7] In one embodiment of the method, this first forming step is assisted by applying energetic excitation to the battery cell during at least a period of the first forming step to facilitate the formation of a first forming step advantageous protective layer on the anode to further improve.
  • [8] In one embodiment of the method, the second forming step is preceded by at least one degassing step with an energetic excitation applied externally to the battery cell in order to remove the gas formed in and following the first forming step in the battery cell from the battery cell and so on in a state suitable for carrying out the second forming step.
  • In one embodiment of the method, the second forming step is carried out in several, in particular two or three steps, which differ in particular in the duration and magnitude of the current application and with pauses of the battery cells. Preferably with CC (constant current) 0.007-3.75 V at 10 minutes, CC 0.15 C at 3.95 V, 0.5C-0.8 C at Mischoxidsystem battery cells. For safety reasons, in one embodiment preferably after / at 3.87 V a quiescent voltage value should be checked for its behavior, for example preferably over 10 minutes.
  • [10] In one embodiment of the method, in particular the voltage (dV / dt [mV / min]) and / or the charge increase (dQ / dt [dA / min]) in the battery cell is monitored during the second forming step. If these values deviate from the intended areas, damage or other defects in the battery cell can be detected. This makes it possible to detect and discard defective battery cells already during the second forming step.
  • [11] In one embodiment of the method, an in particular two-stage aging takes place after the second shaping step. In this case, the at least two aging steps differ in particular in the duration and in the aging temperature. In this way, the second aging step can build on the maturing of the battery cells during the first aging after the second forming step. [12] At least one of these aging steps can provide an at least temporary cooling of the battery cells in order to influence the aging process in an advantageous manner.
  • [13] In one embodiment of the method, at least one further aging step is carried out, in particular immediately before the quality of the battery cells is evaluated. In this way, in the course of the process, two aging steps that finalize the formation can be provided, which influence the quality of the battery cells.
  • In one embodiment of the method, after the completion of the formation and at least one subsequent aging step, the quality of the battery cells is evaluated and assigned the battery cells according to their rating different quality classes, which are essential for the further processing and distribution or subsequent use of the battery cells , When evaluating the quality, in particular different performance parameters of the battery cells are determined, such as the capacity, the internal resistance or the self-discharge. Evaluating the quality of battery cells in the manufacturing process is also referred to as grading.
  • In one embodiment of the method, in evaluating the quality of the battery cells, at least one charging step and at least one discharging step are carried out, in particular at least two charging and at least two discharging steps, wherein the at least two charging steps and the at least two discharging steps take place in duration and the current during charging and discharging differ. In this case, pauses of a predetermined duration are maintained between the loading and unloading steps, which have the same or different lengths. The predetermined duration of such a pause can be between one and 20 minutes, in particular between three and ten minutes, in particular also five minutes, depending on the manufactured battery cells.
  • [16] In one embodiment of the method, after the quality of the battery cell has been assessed and after the battery cells have been assigned to a quality class, a further aging step is carried out, in particular over preceding aging steps. Such an aging step can take several days. In this case, the battery cells are stored in the charged state at elevated temperature, preferably in a temperature above room temperature, according to an inventive embodiment in a temperature window of 30 ° - 60 ° C, which is system dependent to define. In this case, there is a final fine distribution of the electrolyte and the reaction of residues of by-products and impurities, which stabilizes the battery cell.
  • [17] In one embodiment of the method, the internal resistance and the open circuit voltage (OCV) of the battery cell are detected and tested at least once in the process sequence. From this, for example, the self-discharge rate of a battery cell can be derived. Further, these parameters indicate the progress of formation of a battery cell. In addition, based on the detected parameters, it is also possible to infer potential defects of a battery cell.
  • In one embodiment of the method, energy is applied in the form of kinetic, thermal or electrical energy or in the form of a combination of these types of energy to the battery cell when applying the energetic excitation to the battery cell. The expression of the at least one type of energy used for the energetic excitation of the energy cell depends on the application and the battery cell and can be made variable accordingly. As previously stated, an energetic excitation, for example, to support the distribution of the electrolyte in particular in the battery cell or to support the discharge of a gas from the battery cell, in particular for deriving a forming during the formation of the battery cell forming gas.
  • In one embodiment of the method, the packaging of the battery cell is at least partially designed flexible. An at least partially flexible packaging facilitates the application, in particular, of kinetic energy via the packaging to the battery cell, for the energetic stimulation, since a kinetic energy can be transmitted directly to the battery cell arranged in the packaging via a flexible packaging. For example, a wandering motion, such as rolling off doctoring, calendering, chill rolling, flattening, ironing, for example, also in combination with a transfer of thermal energy or gas pressure or vacuum as in an irradiation of the cell or ironing over the packaging on the arranged therein elements of the battery cell are transmitted.
  • In one embodiment of the method, when applying an energetic excitation, at least one kinetic energy is applied to the battery cell in the form of a pressure load applied to at least one part of the battery cell, which is changeable in particular with regard to the load strength, load duration, frequency and load location , Accordingly, suitable for the present type of battery cell energetic excitation can be applied to the battery cell to support, for example, the distribution of elements in the battery cell or to remove a gas therefrom. This also supports homogeneity and cell yield.
  • [21] In one embodiment of the method, upon application of energetic excitation, at least one kinetic energy in the form of a vibration vibration is applied to the battery cell, and in another embodiment or in combination therewith, energetic excitation in the form of at least one thermal and / or electrical energy in the form of heat or a magnetic field strength applied to the battery cell. The selection of a suitable energetic excitation is done depending on the type and size of the battery cell and the purpose that is to be achieved with the energetic excitation.
  • Other features, advantages and applications of the invention will become apparent from the following description taken in conjunction with the figure. It shows
    • 1 a schematic representation of an exemplary inventive method for producing a battery cell.
  • 1 shows a schematic representation of an exemplary inventive method for manufacturing a battery cell 10 in which an arrangement 8th of alternately arranged cathodes and anodes with an electrolyte in a package 9 is arranged. The method according to the invention is described by way of example for an electromobility cell.
  • After providing the battery cell 10 and thus, for example, immediately after filling and impregnation of the electrolyte is initially a charge 21 the battery cell 10 with electrical energy. In the embodiment, a charging time of 0.6 to 1.8 minutes at 0.007 C within one to four hours is provided. This eliminates certain metallic impurities in the battery cell.
  • In carrying out the method, in particular, a step is performed several times 22 in which the internal resistance and the rest voltage (OCV) of the battery cell are detected and checked for a deviation from the internal resistance and open circuit voltage provided in this process state.
  • After charging 21 the battery cell 10 the formation of the battery cell takes place 10 in two formation steps 23 . 24 , Before and after the first forming step 23 will ever be an aging step 27 in conjunction with an energetic stimulation 26 the battery cell 10 carried out. The aging step 27 is carried out at a temperature in the range of room temperature, in the embodiment at 25 ° C. The energetic stimulus 26 has a direct and beneficial effect on the quality of the battery cells 10 and allows a high efficiency of the formation, as a result, for example, defects in the incorporation of ions, atoms or molecules in the elements of the battery cell 10 be reduced or avoided.
  • This first forming step 23 is performed in the embodiment in three, temporally and in the current application different steps, which lead to a state of charge of a maximum of 30% at 25 ° C. In an exemplary Li-ion cell (NCM 811, NCM 622, NCM 111, LMO, Other), a charge of 3.6V to a charge level (SOC) of 20 to 25%. In conjunction with the electrolyte, a protective layer (SEI) forms on the anode, supporting essential cell properties, such as longevity, safety and performance. In the exemplary embodiment, this is supported by a pressure on the cell. In a preferred exemplary embodiment, the three substeps of the forming step occur 23 up to a charge of the battery cell 10 with CC 0.007C, CC 0.05C and CC 0.13C.
  • After the first forming step 23 followed by a second forming step 24 to which a degassing step 25 with an energetic stimulation 26 goes ahead. In the embodiment, this second forming step 24 executed in at least two or three steps. Factors such as the voltage curve (dV / dt) and / or the charge increase (dQ / dt) are monitored. If monitored parameters deviate from predetermined value ranges, then these battery cells become 10 sorted out. In this way, the safety and quality of the manufactured battery cells 10 elevated. For example, at one step 22 At 3.87V (NMC) of a lithium-ion cell, an OCV drop test was performed over a period of 5 to 20, especially 10 minutes. Depending on the cell system, for example, a lithium-ion cell in this step 22 Information on adjusting the formation regime obtained, in particular, the charge end voltages relates.
  • After the second forming step 24 follows in the exemplary embodiment, a two-stage aging 27 which differs in duration and temperatures. Preferably, an aging 27 with a cooling of the battery cells 10 take place, for example when using electrodes or components of various lithium-ion cells with special binders or solid materials.
  • After the second forming step 24 and the two aging steps 27 follows in the exemplary embodiment, a quality assessment step 28 which is also called grading. In the quality evaluation, several charging and discharging steps are usually carried out, for example two charging steps and two unloading steps, wherein each step may differ, for example, in the loading rate during loading CC and during unloading DC. Between the steps, several pause times are kept, which are between 3 and 10 minutes. According to the results of the quality assessment step 28 become the individual battery cells 10 assigned to different quality classes. This assignment step 29 which is also called sorting, so go two aging steps 27 ahead. After the assignment step 29 followed preferably a several days lasting further aging step 27 , This further aging step 27 takes for example 10 days and takes place at a temperature of 25 ° C, and this may differ depending on the particular system and also the materials used and or components.

Claims (8)

  1. Method for producing a battery cell, preferably a Li-ion Bi-stacked cell with solid, characterized in that after a first charging (21) of the filled battery cell (10) with electrical energy, the formation in at least two forming steps (23, 24) performed is performed before and / or after each of the at least two forming steps (23, 24) at least one degassing step (25) with an externally applied to the battery cell (10) energetic excitation (26) and at least one aging step (27).
  2. Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid according to Claim 1 , characterized in that before the first formation step (23) the energetic excitation (26) and degassing (25) are embedded in aging steps (27), which precedes and follows, a second formation step, a second energetic excitation (26) and degassing ( 25) precede with an aging step.
  3. Method for producing a battery cell, preferably a solid Li cell Bi stacked cell according to at least one of the preceding claims, characterized in that prior to grading / classifying the cells and sorting, two aging steps (27) precede and such aging (27 ) follows.
  4. Method for producing a battery cell, preferably a solid Li ion bi-stack cell, according to at least one of the preceding claims, characterized in that the first forming step (23) takes place in at least three stages, which in particular in duration and in the Distinguish strength of the current application of the battery cells (10).
  5. Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid, according to at least one of the preceding claims, characterized in that the second forming step (24) is carried out in several, in particular two or three steps, which are particularly in one, the duration or in the strength of the current application of the battery cells (10) differ.
  6. Method for producing a battery cell, preferably a Li-ion Bi stacked cell with solid, according to at least one of the preceding claims, characterized in that after the second forming step (24) takes place in particular two-stage aging (27), wherein the at least two Aging steps (27) in particular in the duration and in the aging temperature differ.
  7. Method for producing a battery cell, preferably a Li-ion Bi-cell with solid, according to Claim 6 , characterized in that in at least one aging step (27) takes place at least a temporary cooling of the battery cells (10).
  8. A method for producing a battery cell, preferably a Li-ion Bi-stacked cell with solid, according to at least one of the preceding claims, characterized in that for long-axis cells with over 40 cm edge length energetic excitation (26) takes place from the center of the geometry forth ,
DE102018003328.8A 2018-04-24 2018-04-24 Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid Pending DE102018003328A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102018003328.8A DE102018003328A1 (en) 2018-04-24 2018-04-24 Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018003328.8A DE102018003328A1 (en) 2018-04-24 2018-04-24 Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid

Publications (1)

Publication Number Publication Date
DE102018003328A1 true DE102018003328A1 (en) 2019-10-24

Family

ID=68104866

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102018003328.8A Pending DE102018003328A1 (en) 2018-04-24 2018-04-24 Method for producing a battery cell, preferably a Li-ion Bi stacking cell with solid

Country Status (1)

Country Link
DE (1) DE102018003328A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008027741A (en) * 2006-07-21 2008-02-07 Matsushita Battery Industrial Co Ltd Manufacturing method of nonaqueous electrolyte secondary battery
US20130244095A1 (en) * 2010-12-02 2013-09-19 Lg Chem, Ltd. Degassing method of secondary battery using centrifugal force
US20160118644A1 (en) * 2014-10-24 2016-04-28 Semiconductor Energy Laboratory Co., Ltd. Lithium-ion storage battery and fabricating method thereof
US20170012316A1 (en) * 2014-01-24 2017-01-12 Nissan Motor Co., Ltd. Electrical device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008027741A (en) * 2006-07-21 2008-02-07 Matsushita Battery Industrial Co Ltd Manufacturing method of nonaqueous electrolyte secondary battery
US20130244095A1 (en) * 2010-12-02 2013-09-19 Lg Chem, Ltd. Degassing method of secondary battery using centrifugal force
US20170012316A1 (en) * 2014-01-24 2017-01-12 Nissan Motor Co., Ltd. Electrical device
US20160118644A1 (en) * 2014-10-24 2016-04-28 Semiconductor Energy Laboratory Co., Ltd. Lithium-ion storage battery and fabricating method thereof

Similar Documents

Publication Publication Date Title
US8023251B2 (en) Hybrid energy storage device and method of making same
EP0689260A1 (en) Rechargeable electrochemical cell
US20080199737A1 (en) Electrochemical supercapacitor/lead-acid battery hybrid electrical energy storage device
KR20060053980A (en) Non-aqueous electrolyte battery
US20050127875A1 (en) Method for prolonging the life of lithium ion batteries
US20090193649A1 (en) Method for the manufacture of a thin film electrochemical energy source and device
JP5085651B2 (en) Capacitor-battery hybrid electrode assembly
CN104303332A (en) Battery cell having stair-like structure
KR20100137290A (en) Manufacturing method of stacked electrodes by winding type electrode stacking and stacked electrode thereby
US20040191611A1 (en) Non-aqueous electrolyte battery
EP2406838A1 (en) Battery system having an output voltage of more than 60 v direct current voltage
JP5464116B2 (en) Method for producing lithium ion secondary battery
JP5090413B2 (en) Manufacturing method of multilayer secondary battery
RU2309488C2 (en) Storage battery incorporating foam carbon current collectors
JP4488426B2 (en) Storage device control device
CN100418249C (en) Battery and producing method thereof
Ingale et al. Rechargeability and economic aspects of alkaline zinc–manganese dioxide cells for electrical storage and load leveling
WO2003088375A3 (en) Dual chemistry hybrid battery systems
US20070190404A1 (en) Lithium ion secondary battery
JP4048905B2 (en) Battery inspection method
JP4179528B2 (en) Secondary battery inspection method
CN102017244A (en) Cathode active material coated with resistance-reduction coating layer, and all solid-state lithium secondary battery using the same
KR20130004153A (en) Electrode assembly for secondary battery and lithium secondary battery comprising the same
JP5761378B2 (en) Secondary battery control device and control method
KR20120068919A (en) Process for producing secondary battery

Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R012 Request for examination validly filed
R163 Identified publications notified
R016 Response to examination communication