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17 条记录 (耗时 0.02 秒)

    FILM PRODUCTION METHOD
    1.
    发明申请
    FILM PRODUCTION METHOD 审中-公开

    公开(公告)号：US20200044218A1

    公开(公告)日：2020-02-06

    申请号：US16599167

    申请日：2019-10-11

    申请人： Sumitomo Chemical Company, Limited

    发明人： Akihiko SHIN ,  Yuji TAKAOKA ,  Atsushi NAKAZAWA ,  Hideyuki SASAKI

    IPC分类号： H01M2/14 ,  H01M2/18 ,  C08J7/04 ,  H01M2/16 ,  B32B27/14

    摘要： A desired drying capability is achieved while damage to a film is prevented. A film production method is arranged such that: a production process including a drying step is operated by setting a drying condition, under which to carry out the drying step, for each of at least two periods, the two periods being a first period and a second period later than the first period; the drying condition is changed in at least a part of the first period so as to be enhanced with time; and the drying condition is maintained in the second period so as to be substantially fixed.

    FILM MANUFACTURING METHOD, FILM MANUFACTURING APPARATUS, AND FILM
    2.
    发明申请
    FILM MANUFACTURING METHOD, FILM MANUFACTURING APPARATUS, AND FILM 审中-公开

    公开(公告)号：US20180309104A1

    公开(公告)日：2018-10-25

    申请号：US15770793

    申请日：2016-10-31

    申请人： Sumitomo Chemical Company, Limited

    发明人： Akihiko SHIN ,  Atsuhiro TAKATA

    IPC分类号： H01M2/14 ,  B05D3/02 ,  B05D7/04 ,  H01M2/16

    摘要： A method of producing a film is provided. The film includes a base material layer which is shrunk by heat and a functional layer which is dried while being restricted by the base material layer. The method involves heating the film while applying a tensile force in a direction of a length of the film so as to convey the film, and subjecting the film to a heat treatment while, in a distribution along a width of the film, a center part is higher in temperature than end parts. A center part sample of the film is smaller in curling amount with respect to the width of the film than an end part sample, or a standard deviation in curling amount with respect to the width is not more than 1 mm between two samples from respective end parts and a sample from the center part of the film.

    HEATING ROLLER AND FILM PRODUCTION METHOD
    4.
    发明申请
    HEATING ROLLER AND FILM PRODUCTION METHOD 审中-公开

    公开(公告)号：US20170145559A1

    公开(公告)日：2017-05-25

    申请号：US15353815

    申请日：2016-11-17

    申请人： Sumitomo Chemical Company, Limited

    发明人： Akihiko SHIN ,  Koichiro WATANABE

    IPC分类号： C23C14/58 ,  H01M10/60

    摘要： A drying roller includes: a cylindrical member for drying a separator original sheet, with hot water which is supplied into the cylindrical member and ejected from inside the cylindrical member, the separator original sheet being wrapped on an outer peripheral surface of the cylindrical member; and a discharge pipe for discharging the hot water toward one inner end surface of the cylindrical member, the heating medium being discharged at a position where a distance to the one end surface of the cylindrical member is longer than a distance to the other inner end surface of the cylindrical member.

    BATTERY SEPARATOR FILM, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    10.
    发明申请
    BATTERY SEPARATOR FILM, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：US20180375080A1

    公开(公告)日：2018-12-27

    申请号：US15538482

    申请日：2017-01-17

    申请人： Sumitomo Chemical Company, Limited

    发明人： Akihiko SHIN

    IPC分类号： H01M2/16 ,  H01M10/0525

    CPC分类号： H01M2/1686 ,  H01M10/0525

    摘要： A battery separator film that has a small curling amount and is highly handleable is provided. The battery separator film has a curling amount W of not more than 5 mm, the curling amount W being represented by the following equation (1): Curling amount W=W1−W2 (1) where W1 is a width of a film that has been cut out in a longer side direction of the battery separator film, and W2 is a projection width of a part of the film which part is smallest in projection width when seen from a direction perpendicular to a surface of the film while the film, to which a tension of 90 N/m is applied, is stretched between two rollers that are provided in parallel with each other at an interval of 1 m at a temperature of 23 degrees Celsius and a relative humidity of 50%.