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WO1998037588A1 - Batterie a separateur monolithique - Google Patents

Batterie a separateur monolithique Download PDF

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Publication number
WO1998037588A1
WO1998037588A1 PCT/US1998/002602 US9802602W WO9837588A1 WO 1998037588 A1 WO1998037588 A1 WO 1998037588A1 US 9802602 W US9802602 W US 9802602W WO 9837588 A1 WO9837588 A1 WO 9837588A1
Authority
WO
WIPO (PCT)
Prior art keywords
monoblock
tubular
battery assembly
cavity
battery
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.)
Ceased
Application number
PCT/US1998/002602
Other languages
English (en)
Inventor
Victoria A. Edwards
John L. Stempin
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.)
Corning Inc
Original Assignee
Corning Inc
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 Corning Inc filed Critical Corning Inc
Publication of WO1998037588A1 publication Critical patent/WO1998037588A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01M50/463—Separators, membranes or diaphragms characterised by their shape
    • H01M50/469—Separators, membranes or diaphragms characterised by their shape tubular or cylindrical
    • 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

  • Porous separator units for storage batteries and battery assemblies embodying the separator units embodying the separator units.
  • a storage battery assembly customarily includes positive electrodes, negative electrodes, separators and an electrolyte.
  • the assembly may be either a sealed type battery, or a flooded type battery.
  • the electrodes are maintained in spaced relation by the separator.
  • the separator must have sufficient porosity to permit ion transfer between the electrodes. However, the pores should be relatively small, and tortuous to prevent dendrite growth that can cause a short circuit.
  • a rigid, porous separator offers distinct advantages both in battery performance and in manufacture.
  • the separator may provide structural support, whereas the electrodes are the primary source when flexible separators are employed.
  • the rigid separator has proven advantages, but also leaves room for improvement.
  • effort has been directed at further simplifying battery construction and assembly.
  • the present invention embodies results of such efforts.
  • the present invention resides in a battery assembly comprising electrodes, electrolyte and a separator unit, the separator unit comprising a monolithic, porous body containing electrolyte in its pores and having at least two parallel, elongated, spaced cavities, interior of and extending through the body, the electrodes being positioned within the cavities and having conductive current collectors attached.
  • the invention also resides in a separator unit comprising a monolithic, porous body having at least two parallel, elongated, spaced cavities internal of and extending through the body, the cavities being adapted to receive electrodes therein.
  • the invention further embodies a method of producing a battery assembly which comprises providing a material capable of being molded into a porous body, molding a quantity of the material into a monolithic, porous body with parallel, spaced, elongated cavities formed internal of and extending through the body, and positioning electrodes within the cavities.
  • FIGURE 1 is a top plan view of a slotted, monoblock separator unit in accordance with the invention.
  • FIGURE 2 is a view in cross-section along line 2-2 of FIGURE 1.
  • FIGURE 3 is a top plan view of a slotted, tubular monoblock separator unit in accordance with the invention.
  • FIGURE 4 is a view in cross-section along line 4-4 of FIGURE 3.
  • FIGURES 5, 6 and 7 are top plan views showing alternative, monoblock forms of the invention.
  • the present invention expands the concept of a separator unit. It envisions a separator unit that encompasses the electrodes, rather than simply separating them.
  • the separator unit is a monolithic body having elongated slots extending through a central portion of the body.
  • the slots form cavities which receive electrodes to form a battery assembly.
  • the monolithic body may be produced from a batch of proper viscosity by using a conventional molding process such as extrusion, pressing or injection molding.
  • a ceramic batch for molding a separator unit for a lead-acid battery may be prepared as a rigid body as disclosed in the Stempin et al. -494 patent.
  • the ceramic may be alumina, mullite, or mixtures thereof.
  • a rigid, porous, organic unit may be molded from a suitable organic polymer containing a pore-forming material and forming a rigid body.
  • suitable polymers include polyolefins, polyvinyl chloride (PVC), polyvinylidene difluoride (PVDF) and acrylonitrilebutadiene styrene (ABS).
  • PVC polyvinyl chloride
  • PVDF polyvinylidene difluoride
  • ABS acrylonitrilebutadiene styrene
  • the polymers may be made wettable. They may also be mixed with other materials, such as ceramics and/or wood pulp, to form composite materials that attain certain desired properties and/or reduce cost.
  • the monolithic separator structure may be used in either flooded or sealed, lead- acid type batteries as already referred to. It may also be employed in lithium cells or

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Separators (AREA)

Abstract

L'invention porte sur une batterie à séparateur monolithique (10) consistant en un corps poreux contenant l'électrolyte et présentant au moins deux cavités parallèles allongées et étroites (12) s'étendant dans le corps, ainsi que des électrodes (20) remplissant quasiment les cavités et comportant des éléments conducteurs.
PCT/US1998/002602 1997-02-19 1998-02-12 Batterie a separateur monolithique Ceased WO1998037588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3889097P 1997-02-19 1997-02-19
US60/038,890 1997-02-19

Publications (1)

Publication Number Publication Date
WO1998037588A1 true WO1998037588A1 (fr) 1998-08-27

Family

ID=21902489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/002602 Ceased WO1998037588A1 (fr) 1997-02-19 1998-02-12 Batterie a separateur monolithique

Country Status (2)

Country Link
TW (1) TW391070B (fr)
WO (1) WO1998037588A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019152531A1 (fr) * 2018-01-31 2019-08-08 Keracel, Inc. Cellule hybride monolithique dotée d'une structure d'anode scellée
US10581111B2 (en) 2017-01-31 2020-03-03 Keracel, Inc. Ceramic lithium retention device
US10971760B2 (en) 2018-01-31 2021-04-06 Keracel, Inc. Hybrid solid-state cell with a sealed anode structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369936A (en) * 1966-03-10 1968-02-20 Mc Donnell Douglas Corp Multiple plate battery
US3625770A (en) * 1969-06-02 1971-12-07 Mc Donnell Douglas Corp Flexible matrix and battery separator embodying same
US3625771A (en) * 1969-03-27 1971-12-07 Mc Donnell Douglas Corp Battery separator
US3625772A (en) * 1966-08-30 1971-12-07 Mc Donnell Douglas Corp Electrode-separator combination
US4279974A (en) * 1977-09-02 1981-07-21 Ngk Spark Plug Co., Ltd. Solid electrolytic material and use thereof
US5554464A (en) * 1995-07-26 1996-09-10 Corning Incorporated Honeycomb battery separator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369936A (en) * 1966-03-10 1968-02-20 Mc Donnell Douglas Corp Multiple plate battery
US3625772A (en) * 1966-08-30 1971-12-07 Mc Donnell Douglas Corp Electrode-separator combination
US3625771A (en) * 1969-03-27 1971-12-07 Mc Donnell Douglas Corp Battery separator
US3625770A (en) * 1969-06-02 1971-12-07 Mc Donnell Douglas Corp Flexible matrix and battery separator embodying same
US4279974A (en) * 1977-09-02 1981-07-21 Ngk Spark Plug Co., Ltd. Solid electrolytic material and use thereof
US5554464A (en) * 1995-07-26 1996-09-10 Corning Incorporated Honeycomb battery separator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10581111B2 (en) 2017-01-31 2020-03-03 Keracel, Inc. Ceramic lithium retention device
WO2019152531A1 (fr) * 2018-01-31 2019-08-08 Keracel, Inc. Cellule hybride monolithique dotée d'une structure d'anode scellée
US10535900B2 (en) 2018-01-31 2020-01-14 Keracel, Inc. Hybrid solid-state cell with a sealed anode structure
US10971760B2 (en) 2018-01-31 2021-04-06 Keracel, Inc. Hybrid solid-state cell with a sealed anode structure
US11063302B2 (en) 2018-01-31 2021-07-13 Sakuu Corporation Hybrid solid-state cell with a sealed anode structure
US11165101B2 (en) 2018-01-31 2021-11-02 Sakuu Corporation Hybrid solid-state cell with a sealed anode structure
US11616254B2 (en) 2018-01-31 2023-03-28 Sakuu Corporation Hybrid solid-state cell with a sealed anode structure

Also Published As

Publication number Publication date
TW391070B (en) 2000-05-21

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