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ELECTRODE COMPOSITION, ELECTRODE, PRODUCTION METHOD FOR SAID ELECTRODE, AND BATTERY

Foreign code F180009520
File No. (S2017-0295-N0)
Posted date Nov 2, 2018
Country WIPO
International application number 2018JP002476
International publication number WO 2018139580
Date of international filing Jan 26, 2018
Date of international publication Aug 2, 2018
Priority data
  • P2017-014066 (Jan 30, 2017) JP
Title ELECTRODE COMPOSITION, ELECTRODE, PRODUCTION METHOD FOR SAID ELECTRODE, AND BATTERY
Abstract [Problem] To provide an electrode which can sufficiently exhibit the battery characteristics necessary for a solid-state battery, a production method therefor, an electrode composition for producing said electrode, and a battery using the electrode.
[Solution] An electrode composition for secondary cells which is characterized by including an active material, a binder, and an ion-conductive material, the ion-conductive material being a solvated ion–conductive material or ion-conductive solution provided with a metal ion compound; an electrode which is characterized by being provided with an active material, a conductive aid, and a composite material obtained by combining a binder and an ion-conductive material; and an electrode production method using the electrode composition, the electrode production method being characterized by involving a first mixing step for obtaining a first mixture by mixing an active material and a binder, and a second mixing step for obtaining a second mixture by adding and mixing an ion-conductive material to the first mixture.
Outline of related art and contending technology BACKGROUND ART
2 Of the secondary battery is a lithium secondary battery, long life, high efficiency, high capacity, a mobile phone, a notebook personal computer, such as a digital camera has been available for the power supply.In recent years from the viewpoint of safety and may also be a solid electrolyte of the all-solid-state battery have been developed and, in response to the all-solid-state battery has been the development of suitable electrodes.
For example, to Patent Document 1, the electrode material while suppressing the cracking and separation of the surface of the thin film and a large area can be reduced, and, excellent ion conductivity as the electrode sheet, the sheet-like porous substrate, and the adhesive layer, electrode material, is provided, the adhesive, at least the framework surrounding the air gap of the porous base material is deposited on the surface, the electrode material, solid electrolyte material and the electrode active material includes, the inside of the voids of the porous base material is filled has been proposed.In addition, in Patent Document 2, high conductivity, reduce the internal resistance of the battery, in order to improve the input-output characteristics, and the active material and mixing and dispersing the metal source compound, thermal decomposition, the gas-phase reduction, or, liquid phase reduction, or a combination thereof by chemical reaction of the metal particles precipitate on the surface of the active material electrode material has been proposed.In addition, in Patent Document 3, the polymer solid electrolyte is used in the all-solid lithium secondary battery, and suppress an increase in the resistance of the battery over time to improve the cycle life, reduced internal resistance can be simultaneously performed to improve the discharge load characteristic, in order to improve the reliability of the battery, the polymer solid electrolyte is used, the active material, conductive agent, the polymer solid electrolyte, the electrode constituent material of the binder added to the solid electrolyte powder, to an electrode active material, polymer solid electrolyte and inorganic solid electrolyte powder and the ratio between the volume fraction is less than 50% and a battery using the electrode has been proposed.
Scope of claims (In Japanese)請求の範囲
[請求項1]
活物質、バインダー及びイオン伝導性物を含み、
上記イオン伝導性物が、金属イオン系化合物を有する、溶媒和イオン伝導性物又はイオン伝導性溶体である、
ことを特徴とする2次電池用の電極用組成物。
[請求項2]
 上記イオン伝導性物の上記活物質に対する配合割合が、重量比で、活物質:イオン伝導性物=1:0.01~0.3である、
ことを特徴とする請求項1記載の2次電池用の電極用組成物。
[請求項3]
活物質と、導電性助剤と、バインダー及びイオン伝導性物が複合化されてなるコンポジット材とを具備することを特徴とする電極。
[請求項4]
上記コンポジット材が電極の厚み方向全体に亘って、上記活物質及び上記導電性助剤と混合された状態で存在していることを特徴とする請求項3記載の電極。
[請求項5]
請求項1記載の電極用組成物を用いた電極の製造方法であって、
活物質とバインダーとを混合して第1混合物を得る第1混合工程と、
上記第1混合物にイオン伝導性物を添加して混合し、第2混合物を得る第2混合工程と、を具備する、
 ことを特徴とする電極の製造方法。
[請求項6]
 請求項3又は4記載の電極を、正極又は負極の少なくともいずれか一方として具備することを特徴とする電池。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • TOKYO METROPOLITAN UNIVERSITY
  • Inventor
  • KANAMURA Kiyoshi
  • MUNAKATA Hirokazu
  • SHOJI Mao
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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