[특허]Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries

[미국특허] Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-002/16 H01M-002/18 B32B-005/18
출원번호	US-0190353 (1998-11-12)
발명자 / 주소	DuPasquier, Aurelien Tarascon, Jean-Marie
출원인 / 주소	Valence Technology, Inc.
대리인 / 주소	Williams, Roger A.Ross, Michael D.
인용정보	피인용 횟수 : 22 인용 특허 : 11

초록 ▼

A mesoporous polymeric membrane for use as an ionically-conductive inter-electrode separator in a rechargeable battery cell contains a like distribution of mesopore voids throughout a membrane matrix. The porous membrane is capable of absorbing significant amounts of electrolyte solution to provide suitable ionic conductivity for use in rechargeable battery cells. The addition of inert particulate filler to the coating composition provides further strength in the body of the membrane and provides particulate support within the membrane mesopores which prevents collapse of the voids at cell fabrication laminating temperatures and thus maintains electrolyte absorption capability.

대표청구항 ▼

1. A mesoporous polymeric membrane for use as an ionically conductive inter-electrode separator in rechargeable battery cell, said membrane comprising a polymeric matrix and distributed throughout said matrix, a plurality of voids and a multiplicity of inert filler particles, wherein only a portion of said particles is situated within said voids, and wherein said particles are distributed within said voids in a greater spatial density than within said matrix. 2. A membrane according to claim 1 wherein the polymeric matrix comprises a polymer or copolymer of at least one monomer selected from the group consisting of vinyl chloride, acrylonitrile, vinyl acetate, vinyl fluoride, vinylidene chloride, vinylidene fluoride and hexafluoropropylene. 3. A membrane according to claim 1 wherein said polymeric matrix comprises a copolymer of vinylidene fluoride with 3% to 25% by weight hexafluoropropylene. 4. A rechargeable battery cell structure comprising a positive electrode element, a negative electrode element, and a separator membrane element disposed therebetween wherein said separator membrane comprises a polymeric matrix having distributed therein a plurality of voids and a multiplicity of inert filler particles, said particles being distributed throughout said matrix and at least some of the particles also being completely situated within said voids. 5. A rechargeable battery structure according to claim 4 wherein said particles are distributed within said voids in a greater spatial density than within said matrix. 6. A rechargeable battery structure according to claim 4 wherein said polymeric matrix comprises a copolymer of vinylidene fluoride with 3% to 25% by weight hexafluoropropylene. 7. A rechargeable battery structure according to claim 4 wherein each of said electrode elements comprises a polymeric matrix and each of said electrode and separator elements is bonded to contiguous elements at its respective interfaces to form a unitary flexible laminate structure.

이 특허에 인용된 특허 (11) 인용/피인용 타임라인 분석

Chaney ; Jr. Earl J. (Medina OH) Malay Manuel R. (Brunswick OH) O\Hara Thomas J. (Bay Village OH) Ayers Alan D. (Westlake OH), Electrochemical cell having a safety vent closure.
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Gozdz Antoni S. (Tinton Falls NJ) Tarascon Jean-Marie (Martinsville NJ) Warren Paul C. (Far Hills NJ), Electrolyte activatable lithium-ion rechargeable battery cell.
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Langer Alois (Pittsburgh PA) Scala Luciano C. (Murrysville PA) Ruffing Charles R. (Edgewood PA), Heat resistant substrates and battery separators made therefrom.
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Korleski Joseph E. (Newark DE) King David R. (Elkton MD), High capacitance sheet adhesives.
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Gao Feng ; Mitchell Porter H. ; Barker Jeremy, Method of preparing electrochemical cells.
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Gozdz Antoni S. (Tinton Falls NJ) Schmutz Caroline N. (Eatontown NJ) Tarascon Jean-Marie (Martinsville NJ) Warren Paul C. (Far Hills NJ), Polymeric electrolytic cell separator membrane.
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Mortimer ; Jr. William P. (New Castle DE), Polytetrafluoroethylene film.
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Mesiti Edward C. (Jenkintown PA) Rosenblatt Solomon (Montclair NJ), Porous fluoro-carbon polymer matrices.
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McLoughlin Robert H. (Swindon GBX), Process for making a separator for an electrochemical device.
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Gore Robert W. (Newark DE), Process for producing porous products.
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Gozdz Antoni S. (Tinton Falls NJ) Schmutz Caroline N. (Eatontown NJ) Tarascon Jean-Marie (Martinsville NJ) Warren Paul C. (Far Hills NJ), Rechargeable lithium battery construction.
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이 특허를 인용한 특허 (22) 인용/피인용 타임라인 분석

Vanpoulle, Sophie; Nguyen, Van Nhan; Dekoninck, Alexandra, Biocidal roofing granules, roofing products including such granules, and process for preparing same.
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Manthiram, Arumugam; Choi, Wonchang, Cation-substituted spinel oxide and oxyfluoride cathodes for lithium ion batteries.
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Manthiram, Arumugam; Choi, Wonchang, Cation-substituted spinel oxide and oxyfluoride cathodes for lithium ion batteries.
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Kalkanoglu, Husnu M.; McShea, Thomas; Shiao, Ming Liang, Coating compositions for roofing granules, dark colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles and process for producing the same.
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Kalkanoglu, Husnu M.; McShea, Thomas; Shiao, Ming Liang, Coating compositions for roofing granules, dark colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing the same.
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Hong, Keith C.; Shiao, Ming Liang; Kalkanoglu, Husnu M., Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same.
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Shiao, Ming Liang; Kalkanoglu, Husnu M.; Hong, Keith C., Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same.
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Shiao, Ming Liang; Kalkanoglu, Husnu M.; Hong, Keith C., Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same.
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Shiao, Ming Liang; Kalkanoglu, Husnu M.; Hong, Keith C., Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same.
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Huang, Xiaosong, Making a lithium ion battery separator.
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Beard, Kirby, Optimized microporous structure of electrochemical cells.
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Shiao, Ming Liang; Millberg, Jennifer A.; Jacobs, Gregory F., Roofing granules with high solar reflectance, roofing materials with high solar reflectance, and the process of making the same.
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Shiao, Ming Liang; Sharp, Jennifer A.; Jacobs, Gregory F., Roofing granules with high solar reflectance, roofing materials with high solar reflectance, and the process of making the same.
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Shiao, Ming Liang; Hong, Keith C.; Stephens, Walter T., Roofing granules with high solar reflectance, roofing products with high solar reflectance, and processes for producing same.
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Kalkanoglu, Husnu M.; Shiao, Ming Liang; Jacobs, Gregory F., Solar heat reflective roofing membrane and process for making the same.
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Kalkanoglu, Husnu M.; Shiao, Ming Liang; Hong, Keith C.; Jacobs, Gregory F., Solar heat responsive exterior surface covering.
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Kalkanoglu, Husnu M.; Shiao, Ming Liang; Hong, Keith C.; Jacobs, Gregory F., Solar heat responsive exterior surface covering.
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Kalkanoglu, Husnu M.; Shiao, Ming Liang; Hong, Keith C.; Jacobs, Gregory F., Solar heat responsive exterior surface covering.
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Kalkanoglu, Husnu M.; Shiao, Ming Liang; Hong, Keith C.; Jacobs, Gregory F., Solar heat responsive exterior surface covering.
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Shiao, Ming Liang; Hong, Keith C.; Kalkanoglu, Husnu M.; Jacobs, Gregory F., Solar heat-reflective roofing granules, solar heat-reflective shingles, and process for producing same.
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Beard, Kirby W, Treatment and adhesive for microporous membranes.
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Beard, Kirby W., Treatment and adhesive for microporous membranes.
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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries 원문보기