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Patent Searching and Data


Title:
POWER STORAGE MATERIAL AND ULTRA POWER STORAGE BODY
Document Type and Number:
WIPO Patent Application WO/2021/166813
Kind Code:
A1
Abstract:
[Problem] To provide: a power storage material which is formed using a fiber material of cellulose molecules obtained from wood, plant fibers (pulp) or the like, and which is capable of storing direct current power and alternating current power; and an ultra power storage body. [Solution] The present invention comprises fibers that are mainly composed of fibers that are derived from at least one of wood, plant fibers (pulp), animals, algae, microorganisms and microorganism products, while having an enormous number of recesses and projections on the surface. It is preferable that the fibers are crystallized or amorphous fibers, or amorphous fibers having atomic vacancies, while having a specific surface area of 10 m2/g or more. It is preferable that the enormous number of recesses and projections have a diameter of from 1 nm to 500 nm. It is also preferable that the electrical resistance is 100 MΩ or more and the electrical capacity is 5 mF/cm2 or more.

Inventors:
FUKUHARA MIKIO (JP)
HASEGAWA FUMIHIKO (JP)
KURODA TOMOYUKI (JP)
ITO OSAMU (JP)
HASHIDA TOSHIYUKI (JP)
NAKATANI TAKESHI (JP)
MORITA MASAHIRO (JP)
Application Number:
PCT/JP2021/005353
Publication Date:
August 26, 2021
Filing Date:
February 12, 2021
Export Citation:
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Assignee:
UNIV TOHOKU (JP)
JUJO PAPER CO LTD (JP)
International Classes:
H02J15/00; D21H11/00; H01G4/16; H01G11/54
Foreign References:
JP2015000977A2015-01-05
JP2015018696A2015-01-29
JP2016134934A2016-07-25
JP2015057808A2015-03-26
JP2012253321A2012-12-20
JP6498945B22019-04-10
JPH0328241B21991-04-18
JP2016134934A2016-07-25
JP2017041578A2017-02-23
Other References:
M. FUKUHARAT. ARAKIK. NAGAYAMAH. SAKURABA: "Electric storage in de-alloyed Si-Al alloy ribbons", EUROPHYS. LETT., vol. 99, 2012, pages 47001, XP020226998, DOI: 10.1209/0295-5075/99/47001
M. FUKUHARA: "Electric Charging/Discharging Characteristics of Capacitor, Using De-alloyed Si-20A1 Alloy Ribbons", ELECT. ELECTR. ENG., vol. 3, no. 2, 2013, pages 72 - 76
M. FUKUHARAH. YOSHIDA: "AC charging/discharging of de-alloyed Si-Al-V alloy ribbons", J. ALLOYS AND COMP., vol. 586, 2014, pages S130 - S133
M. FUKUHARAH. YOSHIDAM. SATOK. SUGAWARAT. TAKEUCHII. SEKIT. SUEYOSHI: "Superior electric storage in de-alloyed and anodic oxidized Ti-Ni-Si glassy alloy ribbons", PHYS. STAT. SOL. RRL, vol. 7, no. 7, 2013, pages 477 - 480
M. FUKUHARAK. SUGAWARA: "Electric charging/discharging characteristics of super capacitor, using de-alloying and anodic oxidized Ti-Ni-Si amorphous alloy ribbons", NANOSCALE. RES. LETT., vol. 9, 2014, pages 253
M. FUKUHARAK. SUGAWARA: "Anodic oxidization of Ti-Ni-Si amorphous alloy ribbons and their capacitive and resistive properties", THIN SOLID FILMS, vol. 595, 2015, pages 1 - 4, XP029323705, DOI: 10.1016/j.tsf.2015.10.041
M. FUKUHARAT. KURODAF. HASEGAWA: "Amorphous titanium-oxide supercapacitors", SCI. REP., vol. 6, 2016, pages 35870
M. FUKUHARAT. KURODAF. HASEGAWAT. SUEYOSHI: "Superior electric storage on an amorphous perfluorinated polymer surface", SCI. REP., vol. 6, 2016, pages 22012
M. FUKUHARAT. KURODAF. HASEGAWAT. HASHIDAE. KWONK. KONNO: "Amorphous aluminum-oxide supercapacitors", EUROPHYS. LETT., vol. 123, 2018, pages 58004
M. FUKUHARAT. KURODAF. HASEGAWAY. SHIRAIT. SUWAT. HASHIDAM. NISHIJIMA: "Amorphous titanium-oxide supercapacitors with high capacitance", EUROPHYS. LETT., vol. 128, 2019, pages 58001
MICRONICS JAPAN CO., LTD., SECONDARY BATTERY BATTENICE, Retrieved from the Internet
"Complete Japanese Encyclopedia (Encyclopedia Nipponica", vol. 26, 1994, SHOGAKUKAN INC., article "Paper Capacitor"
See also references of EP 4109714A4
Attorney, Agent or Firm:
KUSUNOKI Shuji (JP)
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