WO2000069010A1 - Procede de fabrication d'un element de batterie stratifie - Google Patents

Procede de fabrication d'un element de batterie stratifie Download PDF

Info

Publication number
WO2000069010A1
WO2000069010A1 PCT/US2000/012445 US0012445W WO0069010A1 WO 2000069010 A1 WO2000069010 A1 WO 2000069010A1 US 0012445 W US0012445 W US 0012445W WO 0069010 A1 WO0069010 A1 WO 0069010A1
Authority
WO
WIPO (PCT)
Prior art keywords
binder
binder solution
separator
solvent
solution
Prior art date
Application number
PCT/US2000/012445
Other languages
English (en)
Other versions
WO2000069010A8 (fr
Inventor
Fabrice Coustier
Original Assignee
Polystor Corporation
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 Polystor Corporation filed Critical Polystor Corporation
Priority to AU49912/00A priority Critical patent/AU4991200A/en
Publication of WO2000069010A1 publication Critical patent/WO2000069010A1/fr
Publication of WO2000069010A8 publication Critical patent/WO2000069010A8/fr

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
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0416—Methods of deposition of the material involving impregnation with a solution, dispersion, paste or dry powder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • 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
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • H01M50/461—Separators, membranes or diaphragms characterised by their combination with electrodes with adhesive layers between electrodes and separators
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to electrochemical cells and methods for their
  • the invention relates a method of fabricating lithium-
  • Lithium-ion secondary battery cells are primarily composed of a positive
  • separator a porous polymer film, such as polyethylene, polypropylene,
  • EPDM diene monomer
  • Such binders include, for example,
  • polyurethane polyethylene oxide, polyacrylonitrile, polymethylacrylate,
  • polyacrylamide polyacrylamide, polyvinylacetate, polyvinylpyrrolidone, polytetrafluoroethylene, glycol diacrylate, polyvinylidene fluoride (PVDF), and copolymers of the foregoing
  • the present invention provides alternative to
  • invention provides a process wherein a binder is applied to a battery separator after
  • wound or stacked electrochemical structures including positive and negative
  • the invention provides a method of making a battery cell.
  • method include providing an electrochemical structure having a positive electrode, a
  • the invention provides a method of rigidifying an
  • the method involves providing an electrochemical cell
  • the electrochemical structure is then contacted with a binder
  • Fig. 1 depicts a portion of a single laminate layer of an electrochemical
  • Figs. 2A and 2B illustrate basic jellyroll and stacked electrochemical
  • Fig. 3 depicts a completed battery cell in accordance with the present
  • Fig. 4 depicts a flow chart presenting aspects the fabrication of a battery cell
  • Figs. 5 and 6 depict graphical data from experiments conducted to test
  • the present invention provides alternative fabrication methods for a lithium-
  • the present invention provides a process wherein a
  • binder is applied to a battery separator after winding or stacking the electrodes.
  • the electrochemical structure is typically in
  • the layer 102 includes a porous
  • separator 104 interposed between a positive electrode 106 and a negative electrode
  • the separator is impregnated (including being coated) with a binder 105 to
  • electrodes 106, 108 are typically formed on current collectors 1 10, 1 12, respectively,
  • the positive electrode 106 may be composed of a cathode material 114
  • the negative electrode 108 may be
  • the separator 104 is porous.
  • the electrochemical structure may be composed of appropriate materials known to
  • Suitable materials for a lithium-ion cell include, for example,
  • carbon as an electronic conductor
  • active material e.g., graphite
  • lithium cobalt oxide lithium manganese oxide, or lithium nickel oxide
  • a binder such as PVDF
  • carbon as an active material with a
  • the electrodes are typically formed on a binder (such as PVDF).
  • binder such as PVDF
  • the separator may be composed of a porous polyolefin,
  • separator materials include polytetrafuoroethylene,
  • the separator is typically filled with a liquid
  • compositions for lithium ion cells in accordance with the present invention may
  • solvents such as propylene carbonate, ethylene carbonate, diethyl carbonate,
  • invention is typically in the form of a "jellyroll" (wound laminate) or stack.
  • Figs. 2A are typically in the form of a "jellyroll" (wound laminate) or stack.
  • FIG. 2A depicts an enlarged cross-sectional
  • the jellyroll design 200 is
  • Fig. 2B depicts an enlarged cross-sectional
  • the stack 210 may be
  • a positive lead 204 is attached, e.g., by welding, to a portion of the positive electrode's current collector
  • a negative lead 206 is attached to a portion of the negative electrode's current
  • the cell container may be composed of a substantially gas-impermeable
  • barrier material composed a polymer-laminated metal material that is lightweight
  • gel-polymer as well as solid state polymer cell batteries.
  • container material is polymer-laminated aluminum foil, such as product number
  • the present invention is primarily directed to a process for applying a binder
  • a "jellyroll" or stack electrochemical structure may be dip-coated or
  • the binder solution may include polyurethane, polyethylene oxide, polyacrylonitrile,
  • polymethylacrylate polyacrylamide, polyvinylacetate, polyvinylpyrrolidone,
  • the binder solution may be a PVDF homopolymer, or it may also include a PVDF co-
  • HFP hexafluoropropylene
  • CTFE chlorotrifluoroethylene
  • the binder is dissolved in a solvent; from about 1% to 30% binder
  • solvent preferably about 6% binder in solvent.
  • Suitable solvents will preferably be
  • Suitable solvents include: acetone,
  • binder solution is PVDF-acetone-NMP.
  • solution may be about 1 to 20% by weight PVDF in solvent (e.g., 80% acetone/20%
  • the structure is placed in a cell container.
  • jellyroll is wound or a stack of electrodes prepared using a standard separator and
  • a cell container in the form of a pouch (e.g.. sealed on three
  • the separator is impregnated with PVDF solution, and then dried, e.g., under vacuum, to remove the low boiling point acetone solvent.
  • the cell is then wetted with
  • electrolyte wetting can take place in the same vessel.
  • binder solutions In accordance with one embodiment of the present invention, binder solutions
  • electrochemical structure is subsequently dried by evaporation, the lower boiling
  • binder solution on the separator is composed of connected pockets of the bad solvent.
  • binder material or latent i.e., poor solubility for the binder material).
  • latent i.e., poor solubility for the binder material
  • good solvents may include: acetone, tetrahydrofuran, methyl ethyl ketone,
  • Latent solvents include: methyl isobutyl
  • bad solvents include: pentane, methyl alcohol, hexane,
  • hydrocarbons aromatic hydrocarbons, chlorinated solvents, and alcohols.
  • the ratio of solvents can be from about 99% good/1%) bad
  • polyethylene film may be coated with a solution of PVDF dissolved in a mixture of 2-
  • 2-butanone is a good solvent for PVDF and has a
  • Diethyl carbonate is a bad solvent for PVDF and has a boiling point of 80°C.
  • lamination may take place before or after the cell is sealed.
  • any suitable energy source such as UN., I.R, R.F. ultrasound, heat, etc.
  • a jellyroll or stack may
  • solution e.g., 1% to 30% binder, 10% to 90% electrolyte, 10% to 90% of solvent
  • PVDF-acetone-electrolyte e.g., LiPF 6 in 50% DEC/50% EC
  • the electrolyte remains in the jellyroll or stack.
  • the pouch may then be sealed.
  • jellyroll is wound or a stack of electrodes prepared using a standard separator and
  • PVDF/solvent/electrolyte solution for example, a 10% solvent
  • the separator Under pressure, the separator is impregnated with PVDF/electrolyte
  • Fig.4 illustrates a process flow 400 for soaking an electrochemical structure
  • Processes in accordance with the present invention may include up to
  • the process flow 400 begins by providing an electrochemical structure having
  • binder solution in accordance with the present invention (404).
  • the binder solution in accordance with the present invention (404).
  • compositions as described herein, and the contact may take
  • the electrolyte As noted above, in at least one embodiment of the present invention, the electrolyte
  • solvents having particular properties e.g.,
  • drying steps typically take place to remove volatile
  • Example 1 Impregnation of Separator by PVDF Soaking
  • the dry-box removed from the dry-box and placed in an oven at 90°C for 10 minutes.
  • control and 701 is the roll soaked in PVDF solution.
  • the capacity of the two cells is
  • the cells were formed, vented, resealed and tested for rate capability. This
  • FIG. 6 shows the capacity versus rate for a control and one of the soaked
  • the inventive technique does not result in any deterioration in

Abstract

L'invention concerne des procédés de fabrication d'un élément de batterie secondaire au lithium-ion (300). Ces procédés consistent à appliquer un liant (105) sur un séparateur de batterie (104) après enroulement ou empilement des électrodes (106, 108). Pour ce faire, on trempe les structures électrochimiques enroulées ou empilées, y compris les électrodes positive (106) et négative (108) ainsi que le séparateur poreux (104) dans une solution contenant le liant (105).
PCT/US2000/012445 1999-05-06 2000-05-05 Procede de fabrication d'un element de batterie stratifie WO2000069010A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49912/00A AU4991200A (en) 1999-05-06 2000-05-05 Method of fabricating a lamitated battery cell

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13305799P 1999-05-06 1999-05-06
US60/133,057 1999-05-06
US56520400A 2000-05-04 2000-05-04
US09/565,204 2000-05-04

Publications (2)

Publication Number Publication Date
WO2000069010A1 true WO2000069010A1 (fr) 2000-11-16
WO2000069010A8 WO2000069010A8 (fr) 2001-05-25

Family

ID=26830994

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/012445 WO2000069010A1 (fr) 1999-05-06 2000-05-05 Procede de fabrication d'un element de batterie stratifie

Country Status (1)

Country Link
WO (1) WO2000069010A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1401037A2 (fr) * 2002-09-17 2004-03-24 Tomoegawa Paper Co. Ltd. Séparateur pour pile secondaire à ions lithium et pile secondaire à ions lithium équiper d'un tel dispositif
EP2779295A1 (fr) * 2013-03-15 2014-09-17 Samsung SDI Co., Ltd. Dispositif d'assemblage du type "jelly roll" à électrodes enroulées et son procédé de fabrication
CN114512724A (zh) * 2022-02-16 2022-05-17 天津市捷威动力工业有限公司 一种叠片电芯及其制备方法和应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5456000A (en) * 1993-03-05 1995-10-10 Bell Communications Research, Inc. Method of making an electrolyte activatable lithium-ion rechargeable battery cell
US5470357A (en) * 1993-03-05 1995-11-28 Bell Communications Research, Inc. Method of making a laminated lithium-ion rechargeable battery cell
US5853916A (en) * 1996-10-28 1998-12-29 Motorola, Inc. Multi-layered polymeric gel electrolyte and electrochemical cell using same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5456000A (en) * 1993-03-05 1995-10-10 Bell Communications Research, Inc. Method of making an electrolyte activatable lithium-ion rechargeable battery cell
US5470357A (en) * 1993-03-05 1995-11-28 Bell Communications Research, Inc. Method of making a laminated lithium-ion rechargeable battery cell
US5853916A (en) * 1996-10-28 1998-12-29 Motorola, Inc. Multi-layered polymeric gel electrolyte and electrochemical cell using same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1401037A2 (fr) * 2002-09-17 2004-03-24 Tomoegawa Paper Co. Ltd. Séparateur pour pile secondaire à ions lithium et pile secondaire à ions lithium équiper d'un tel dispositif
EP1401037A3 (fr) * 2002-09-17 2006-12-20 Tomoegawa Paper Co. Ltd. Séparateur pour pile secondaire à ions lithium et pile secondaire à ions lithium équiper d'un tel dispositif
US7311994B2 (en) 2002-09-17 2007-12-25 Tomoegawa Paper Co., Ltd. Separator for lithium ion secondary battery and lithium ion secondary battery provided therewith
EP2779295A1 (fr) * 2013-03-15 2014-09-17 Samsung SDI Co., Ltd. Dispositif d'assemblage du type "jelly roll" à électrodes enroulées et son procédé de fabrication
CN104051776A (zh) * 2013-03-15 2014-09-17 三星Sdi株式会社 电极组件和使用其的二次电池的制造方法
CN114512724A (zh) * 2022-02-16 2022-05-17 天津市捷威动力工业有限公司 一种叠片电芯及其制备方法和应用

Also Published As

Publication number Publication date
WO2000069010A8 (fr) 2001-05-25

Similar Documents

Publication Publication Date Title
US7166385B2 (en) Non-aqueous electrolyte secondary battery assembly
EP1401037B1 (fr) Séparateur pour pile secondaire à ions lithium et pile secondaire à ions lithium équiper d'un tel dispositif
JP4155054B2 (ja) バイポーラ電池
US6024773A (en) Method of fabricating a lithium ion secondary battery
JP3982165B2 (ja) 固体電解質電池
JP4281129B2 (ja) リチウムイオン二次電池
US20020136957A1 (en) Rechargeable lithium-ion battery cells and methods of making the same
US20020110732A1 (en) Battery cell fabrication process
US9752063B2 (en) Treatment and adhesive for microporous membranes
US7288343B2 (en) Structure and methods of fabricating binding layers for a Li-ion polymer battery
JP2002512430A (ja) 再充電可能なリチウム電池の複合ポリマー電解質
KR100587437B1 (ko) 비수 전해질 이차 전지
JP2008097940A (ja) 双極型二次電池
JPH09213338A (ja) 電池及びリチウムイオン二次電池
US6338920B1 (en) Electrode for lithium ion secondary battery and lithium ion secondary battery using the same
JP2007242424A (ja) バイポーラ電池
US6426165B1 (en) Electrochemical cell separators with high crystallinity binders
US7381500B2 (en) Method for preparing a lithium secondary battery comprising a multi-phase separator and lithium secondary battery made using the same
JP2004253155A (ja) バイポーラ電池
JP2000251944A (ja) 非水電解液二次電池及び非水電解液二次電池の製造方法
WO2000069010A1 (fr) Procede de fabrication d'un element de batterie stratifie
JP2002231196A (ja) 薄形電池の製造方法
JP4202549B2 (ja) 電気化学デバイス及びその製造方法
JP2004335302A (ja) ポリマー電池およびポリマー電池用電極の製造方法
JP2000285954A (ja) ラミネート外装体を用いた薄型電池の製造方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: C1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: C1

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: PAT. BUL. 46/2000 UNDER (30) REPLACE "NOT FURNISHED" BY "09/565204"

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP