Title:
DEVICE FOR CONTINUOUSLY PRODUCING CHEMICALLY-MODIFIED CELLULOSE AND METHOD USED IN SAME
Document Type and Number:
WIPO Patent Application WO/2017/057699
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a device for continuously producing chemically-modified cellulose obtained by reacting a finely-powdered cellulose fiber material and a hydrophobic chemical substance; and a method used in said device. This device constitutes a part of an apparatus for continuously producing, from a finely-powdered cellulose fiber raw material, a cellulose nanofiber composite separator used for lithium-ion batteries, thereby contributing to efficient production of a cellulose nanofiber composite separator used for lithium-ion batteries. More specifically, the present invention pertains to: a device for continuously producing a chemically-modified cellulose, said device having a first mechanism for transporting a finely-powdered cellulose fiber raw material and a hydrophobic chemical substance, a specific extruder, a solvent tank connected to the extruder, and a drying device connected to the solvent tank; and a method for continuously producing a chemically-modified cellulose, comprising a step for removing the hydrophobic chemical substance that has not reacted by washing the chemically-modified cellulose produced from a finely-powdered cellulose fiber raw material and a hydrophobic chemical substance using the extruder in the solvent tank, and then drying same in the drying device.
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Inventors:
NAKAMURA SATORU (JP)
ISHIGURO RYO (JP)
YOSHIOKA MARIKO (JP)
ISHIGURO RYO (JP)
YOSHIOKA MARIKO (JP)
Application Number:
PCT/JP2016/079072
Publication Date:
April 06, 2017
Filing Date:
September 30, 2016
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD (JP)
UNIV KYOTO (JP)
UNIV KYOTO (JP)
International Classes:
C08B17/02; C08B3/12; C08B3/16; H01M50/409; H01M50/443; H01M50/489; H01M50/494
Domestic Patent References:
| WO2014017335A1 | 2014-01-30 |
Foreign References:
| JP2014234472A | 2014-12-15 | |||
| JP2009293167A | 2009-12-17 | |||
| JP2013056958A | 2013-03-28 |
Other References:
SATORU NAKAMURA ET AL.: "Development of the production process for the lithium-ion battery separator", JAPAN STEEL WORKS TECHNICAL REVIEW, vol. 64, October 2013 (2013-10-01), pages 28 - 36, XP009509141
RYO ISHIGURO ET AL.: "LIB-yo Cellulose Nanofiber Fukugoka Polyethylene (PE) Separator no Kaihatsu", JOURNAL OF THE JAPAN SOCIETY OF POLYMER PROCESSING (NENJI TAIKAI, vol. 24, 14 May 2013 (2013-05-14), pages 87 - 88, XP009509135
RYO ISHIGURO ET AL.: "Development of the Polyethylene and Cellulose Nanofiber Composites Separator Film for LIB", JOURNAL OF THE JAPAN SOCIETY OF POLYMER PROCESSING, vol. 27, no. 2, 20 January 2015 (2015-01-20), pages 65 - 67, XP055520326, ISSN: 0915-4027
SATORU NAKAMURA ET AL.: "3E01: LIB-yo Cellulose Nanofiber Fukugoka Polyethylene (PE) Separator no Kaihatsu [Development of the polyethylene (PE) and cellulose nanofiber composites separator film for LIB ]", ABSTRACTS OF ANNUAL MEETING OF THE ELECTROCHEMICAL SOCIETY OF JAPAN; 25-31/03/2013, vol. 80, 29 March 2013 (2013-03-29), pages 151, XP009509611
MARIKO YOSHIOKA ET AL.: "Jisedai Lithium-Ion Denchi-yo Cellulose Nanofiber Hokyo Separator Film no Kaihatsu", ABSTRACTS OF THE ANNUAL MEETING OF THE JAPAN WOOD RESEARCH SOCIETY (KANZENBAN, vol. 63, 2013, pages J27 - 03-1645, XP009509145
RYO ISHIGURO ET AL.: "Practical Use Technology Development of the Innovative Separator for Next-Generation Lithium Ion Battery", JAPAN STEEL WORKS TECHNICAL REVIEW, vol. 66, October 2015 (2015-10-01), pages 63 - 72, XP009509142
RYO ISHIGURO ET AL.: "Practical Use Technology Development of the Innovative Separator for Next-Generation Lithium Ion Battery", SEIKEI KAKO SYMPOSIA [MOLDING PROCESSING SYMPOSIA]; NOVEMBER 2 - 3, 2015 FUKUOKA UNIVERSITY, 2 November 2015 (2015-11-02), pages 231 - 232, XP009510126
MARIKO YOSHIOKA ET AL.: "Jisedai Lithium-Ion Denchi-yo Cellulose Nanofiber Hokyo Separator Film no Kaihatsu (II", ABSTRACTS OF THE ANNUAL MEETING OF THE JAPAN WOOD RESEARCH SOCIETY (KANZENBAN, vol. 65, 1 March 2015 (2015-03-01), pages J18 - 08-1530, XP009509131
See also references of EP 3345930A4
RYO ISHIGURO ET AL.: "LIB-yo Cellulose Nanofiber Fukugoka Polyethylene (PE) Separator no Kaihatsu", JOURNAL OF THE JAPAN SOCIETY OF POLYMER PROCESSING (NENJI TAIKAI, vol. 24, 14 May 2013 (2013-05-14), pages 87 - 88, XP009509135
RYO ISHIGURO ET AL.: "Development of the Polyethylene and Cellulose Nanofiber Composites Separator Film for LIB", JOURNAL OF THE JAPAN SOCIETY OF POLYMER PROCESSING, vol. 27, no. 2, 20 January 2015 (2015-01-20), pages 65 - 67, XP055520326, ISSN: 0915-4027
SATORU NAKAMURA ET AL.: "3E01: LIB-yo Cellulose Nanofiber Fukugoka Polyethylene (PE) Separator no Kaihatsu [Development of the polyethylene (PE) and cellulose nanofiber composites separator film for LIB ]", ABSTRACTS OF ANNUAL MEETING OF THE ELECTROCHEMICAL SOCIETY OF JAPAN; 25-31/03/2013, vol. 80, 29 March 2013 (2013-03-29), pages 151, XP009509611
MARIKO YOSHIOKA ET AL.: "Jisedai Lithium-Ion Denchi-yo Cellulose Nanofiber Hokyo Separator Film no Kaihatsu", ABSTRACTS OF THE ANNUAL MEETING OF THE JAPAN WOOD RESEARCH SOCIETY (KANZENBAN, vol. 63, 2013, pages J27 - 03-1645, XP009509145
RYO ISHIGURO ET AL.: "Practical Use Technology Development of the Innovative Separator for Next-Generation Lithium Ion Battery", JAPAN STEEL WORKS TECHNICAL REVIEW, vol. 66, October 2015 (2015-10-01), pages 63 - 72, XP009509142
RYO ISHIGURO ET AL.: "Practical Use Technology Development of the Innovative Separator for Next-Generation Lithium Ion Battery", SEIKEI KAKO SYMPOSIA [MOLDING PROCESSING SYMPOSIA]; NOVEMBER 2 - 3, 2015 FUKUOKA UNIVERSITY, 2 November 2015 (2015-11-02), pages 231 - 232, XP009510126
MARIKO YOSHIOKA ET AL.: "Jisedai Lithium-Ion Denchi-yo Cellulose Nanofiber Hokyo Separator Film no Kaihatsu (II", ABSTRACTS OF THE ANNUAL MEETING OF THE JAPAN WOOD RESEARCH SOCIETY (KANZENBAN, vol. 65, 1 March 2015 (2015-03-01), pages J18 - 08-1530, XP009509131
See also references of EP 3345930A4
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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