428 patents
Page 2 of 22
Utility
Non-aqueous electrolyte secondary battery positive electrode active material, method for producing same, and non-aqueous electrolyte secondary battery which uses positive electrode active material
10 Oct 23
The present invention provides a lithium-nickel-manganese-cobalt composite oxide in which the reactivity between a lithium raw material and a metal composite hydroxide is improved so that a high low-temperature output characteristic can be achieved, a method for manufacturing the composite oxide, and a positive electrode active material and the like without causing a problem of gelation during the paste preparation.
Hiroko Oshita, Kazuomi Ryoshi, Taira Aida, Koji Yamaji, Jiro Okada
Filed: 31 Jul 18
Utility
Method for manufacturing sulfuric acid solution and electrolyzer used thereof
10 Oct 23
A method for manufacturing a sulfuric acid solution includes supplying a chloride ion-containing sulfuric acid solution as an initial electrolyte in an electrolyzer inside of which is divided into an anode chamber and a cathode chamber by a diaphragm; and subsequently taking out a metal dissolved electrolyte in which a metal constituting the anode is dissolved from the anode chamber while supplying a current to an anode and a cathode disposed in the electrolyzer.
Hiroto Watanabe, Itsumi Matsuoka, Yusuke Senba, Hiroshi Kobayashi
Filed: 19 Apr 19
Utility
Nickel powder, method for manufacturing nickel powder, internal electrode paste using nickel powder, and electronic component
3 Oct 23
To provide a fine nickel powder for an internal electrode paste of an electronic component, the nickel powder obtained by a wet method and having high crystallinity, excellent sintering characteristics, and heat-shrinking characteristics.
Junji Ishii, Shingo Murakami, Hiroyuki Tanaka, Takahiro Kamata, Toshiaki Terao, Masaya Yukinobu, Yuji Watanabe, Tsutomu Tanimitsu, Yoshiyuki Kunifusa, Haruo Nishiyama
Filed: 13 May 22
Utility
Positive electrode active material for nonaqueous electrolyte secondary batteries, method for producing same, and nonaqueous electrolyte secondary battery
3 Oct 23
Provided is a positive electrode active material for a nonaqueous electrolyte secondary battery including a LiNi composite oxide having low internal resistance and excellent thermal stability.
Tomoko Nakayama, Jun Yokoyama, Tetsufumi Komukai
Filed: 14 Jul 22
Utility
Non-aqueous electrolyte secondary battery including a positive electrode active substance containing a lithium composite oxide porous particle having voids
3 Oct 23
A non-aqueous electrolyte secondary battery which is obtained using a lithium composite oxide having a layered structure and coated with a tungsten-containing compound in a positive electrode active substance, and which has a low initial resistance, and in which an increase in resistance following repeated charging and discharging is suppressed.
Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
Filed: 10 Jul 20
Utility
Electrode material, method for manufacturing electrode material, electrode, and lithium ion battery
26 Sep 23
An electrode material including a carbonaceous-coated electrode active material having primary particles of the electrode active material and secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which a specific surface area, which is obtained using a nitrogen adsorption method, is 4 m2/g or more and 40 m2/g or less, a volume of micropores per unit mass is 0.05 cm3/g or more and 0.3 cm3/g or less, and an average micropore diameter, which is obtained from the volume of the micropores per unit mass and the specific surface area, is 26 nm or more and 90 nm or less.
Kouji Oono, Satoru Oshitari, Tsutomu Nozoe, Masataka Oyama
Filed: 4 Sep 19
Utility
Method for Treating Sulfide
21 Sep 23
Provided is a method for treating a sulfide, the method being suitable for obtaining nickel and/or cobalt from a sulfide containing copper and nickel and/or cobalt.
Hiroshi Takenouchi, Shin-ichi Heguri, Satoshi Asano, Hirofumi Shouji
Filed: 5 Aug 21
Utility
Method for Recovering Lithium and Method for Producing Lithium Carbonate
21 Sep 23
Disclosed is A method for recovering lithium from slag containing at least aluminum and lithium, the slag being provided by melting a lithium-ion secondary battery to be disposed of to obtain molten metal containing valuable metal and molten slag containing at least aluminum and lithium and separating the slag containing at least aluminum and lithium from the molten metal containing valuable metal.
Takuro ABE, Naoki HOSODA, Shinsuke KATAYAMA, Satoshi ASANO, Toshihiko NAGAKURA
Filed: 13 Apr 21
Utility
Nonaqueous electrolyte secondary battery
12 Sep 23
Provided is a nonaqueous electrolyte secondary battery with a positive electrode active material that contains an excess of Li and has a layered structure, the nonaqueous electrolyte secondary battery having a high output and enabling prevention of gelation of the positive electrode active material layer-forming paste during production.
Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
Filed: 15 Jul 20
Utility
Thick Film Resistor Paste, Thick Film Resistor, and Electronic Component
31 Aug 23
To provide a thick film resistor paste for a resistor having a smaller resistance change rate and excellent surge resistance, a thick film resistor using the thick film resistor paste, and an electronic component provided with the thick film resistor.
Masaki Ando
Filed: 30 Apr 21
Utility
Dark Powder Dispersion Liquid, Dark Powder Dispersion Body and Colored Layer-attached Base Material
31 Aug 23
A dark powder dispersion liquid including a dark pigment, composite tungsten oxide particles and a solid medium, wherein a mass ratio of the dark pigment to the composite tungsten oxide particles (mass of dark-colored pigment/mass of composite tungsten oxide fine particles) is 0.01 or more and 5 or less.
Takafumi ITO, Keiichi SATO, Mika OKADA
Filed: 9 Apr 21
Utility
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing the same, and nonaqueous electrolyte secondary battery
22 Aug 23
A positive electrode active material for a nonaqueous electrolyte secondary battery is disclosed which contains a lithium-nickel-manganese composite oxide containing a secondary particle formed of a plurality of flocculated primary particles and a lithium-niobium compound.
Haruki Kaneda, Yuki Koshika, Takuma Nakamura
Filed: 25 Dec 17
Utility
Cathode active material for non-aqueous electrolyte secondary battery and method of manufacturing cathode active material for non-aqueous electrolyte secondary battery
22 Aug 23
A cathode active material for a non-aqueous electrolyte secondary battery including primary particles of a lithium nickel complex oxide represented by a general formula: LizNi1−x−yCoxMyO2+α, and secondary particles in which the primary particles aggregate, wherein a plurality of coated lithium nickel complex oxide particles are formed by disposing a compound containing tungsten and lithium on surfaces of the secondary particles and surfaces of the primary particles positioned inside the secondary particles, and wherein a relative standard deviation of a ratio of a number of atoms of tungsten to a number of atoms of a metallic component other than lithium contained in the coated lithium nickel complex oxide particles is 0.4 or lower.
Toshiaki Aihara, Hiroyuki Toya
Filed: 21 Nov 18
Utility
Alloy Powder, Method for Manufacturing Same, and Method for Recovering Valuable Metal
17 Aug 23
Provided are: an alloy powder in which nickel and cobalt can be easily dissolved in an acid and stably leached with an acid; a manufacturing method with which an alloy powder that enables stable acid leaching can be obtained at low cost; and a method for recovering a valuable metal using the manufacturing method.
Ryo Togashi
Filed: 18 Aug 21
Utility
Method for Recovering Valuable Metal
17 Aug 23
Provided is a method which allows for strict control of an oxygen partial pressure required for the heating and melting of a raw material, and thereby more efficient recovery of a valuable metal.
Yu Yamashita, Toshihiko Nagakura, Tomoya Hagio
Filed: 29 Jun 21
Utility
Method for Recovering Valuable Metal
10 Aug 23
Provided is a method that allows for efficient removal of an impurity metal, and further, the recovery of a valuable metal with high efficiency.
Kazunari Maeba, Yu Yamashita, Toshihiko Nagakura, Junichi Takahashi, Ryo Togashi
Filed: 12 Jul 21
Utility
Nickel-manganese Composite Hydroxide, Method for Producing the Same, Positive Electrode Active Material for Nonaqueous Electrolyte Secondary Battery, Method for Producing the Same, and Nonaqueous Electrolyte Secondary Battery
10 Aug 23
Provided are a positive electrode active material with which a nonaqueous electrolyte secondary battery having a high energy density can be obtained, a nickel-manganese composite hydroxide suitable as a precursor of the positive electrode active material, and production methods capable of easily producing these in an industrial scale.
Haruki Kaneda, Yuki Koshika, Takaaki Ando
Filed: 13 Apr 23
Utility
Method for separating copper, and nickel and cobalt
8 Aug 23
Provided is a method for separating copper from nickel and cobalt, which can efficiently and selectively separate copper from nickel and cobalt in a substance containing copper, nickel, and cobalt in a waste lithium ion battery, etc.
Hiroshi Takenouchi, Hiroshi Kobayashi, Hirofumi Shoji, Tatsuya Higaki
Filed: 28 Nov 18
Utility
Rare Earth-iron-nitrogen-based Magnetic Powder, Compound for Bonded Magnet, Bonded Magnet, and Method for Producing Rare Earth-iron-nitrogen-based Magnetic Powder
3 Aug 23
A rare earth-iron-nitrogen-based magnetic powder according to this invention contains, as main constituent components, a rare-earth element (R), iron (Fe), and nitrogen (N).
Satoshi Sugimoto, Masashi Matsuura, Takashi Ishikawa, Yukinobu Yoneyama
Filed: 31 Mar 21
Utility
Bubble Measurement Device and Bubble Measurement Method
20 Jul 23
A bubble measurement device for measurement of bubbles moving in a liquid includes a measurement chamber having an image capturing surface; an image capturing device that captures an image of the bubbles passing along the image capturing surface; an introduction pipe that introduces the bubbles into the measurement chamber; a retaining tank that stores the liquid; a supply pump that draws up the liquid; a drain pipe that returns the liquid into the retaining tank; and a flow velocity adjusting mechanism that adjusts a flow velocity of the liquid passing along the image capturing surface.
Yoshihiko NAKAO
Filed: 20 Mar 23