Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Sumitomo Metal Mining Company, Ltd.

Mitsui Chemicals, Inc.

Asmo Co., Ltd.

Adeka Corporation

Kureha Corporation

Denso Corpora Tion

Taiheiyo Cement Corporation

Satoru Suzuki

Manabu Yamada

Hirofumi Iisaka

Katsuya Kase

Yoshihiro Adachi

Taira Saito

Masaru Irie

Toshihiro Matsuura

Yukihide Ishino

Takashi Nagaya

Yoshinobu Nagao

Yoshitsugu Nakagawa

Hironori Suzuki

Takashi Sato

Tomoyoshi Ueki

Shuhei Yoshida

Takayuki Taki

Hiroshi Ueshima

Daisuke Itoh

Ryuichi Kuzuo

Hiroki Yamashita

Takaaki Ogami

Takahiko Yamamoto

Shigeki Kubo

Kotaku Saigusa

Kouhei Yamamoto

Ko Nozaki

Atsuo Tomita

Kazuo Ikuta

Yasuhiro Sudou

Syuuhei Yoshida

Hiroto Asano

Toshiki Maeda

Musashi Nakagane

Syuuhei Oda

Yuko Hirayama

Toshihito Shimada

Satoru Nagami

Shun Okijima

There is provided a positive electrode active material composite for a lithium-ion secondary battery, in which, when using as a positive electrode active material of the lithium-ion secondary battery, it can effectively improve high-temperature cycle characteristics. In the positive electrode active material composite for a lithium-ion secondary battery, only on the surface of a lithium transition metal oxide secondary particle (A) composed of one or more of the lithium transition metal oxide particles represented by the following formula (I): LiNiCoMnMO. . . (I) or the following formula (II): LiNiCOAlMO. . . (II), a lithium-based polyanion particles (B) is composited with lithium transition metal oxide particles under a specific condition, the lithium-based polyanion particles (B) being represented by the following formula (III) or (III)': LiMnFeMPO. . . (III) or MnFeMPO. . . (III)&#x2032; and being supporting carbon (C) on a surface thereof.

Positive electrode active material complex for lithium-ion secondary battery, secondary battery using same, and method for producing positive electrode active material complex for lithium-ion secondary battery

A brushless motor comprising: a rotor; a stator core disposed at a radial direction outside of the rotor, and a stator case. The stator core includes an outer ring shaped section, teeth sections projecting out from the outer ring shaped section toward a radial direction inside, and an inner ring shaped section extending from end portions of the teeth sections. Protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section. The stator case is integrated together with the stator core by a plurality of plastic deformation portions formed at an outer peripheral portion of the stator case at locations facing towards the protruding portions, and the plastic deformation portions are disposed at even intervals along a circumferential direction of the stator case.

Brushless motor, stator, stator manufacturing method and brushless motor manufacturing method

Disclosed is a nonaqueous electrolyte secondary battery which comprises a flat wound electrode body wherein a positive electrode plate, which comprises a positive electrode collector foil and a positive electrode active material layer, and a negative electrode plate, which comprises a negative electrode collector foil and a negative electrode active material layer, are wound up with a separator being interposed therebetween. The positive electrode plate has a collector cover layer that has electrical insulation properties and covers at least a part of a facing collector portion in the longitudinal direction in a positive electrode collector portion. The collector cover layer covers at least an innermost semi-cylindrical facing collector portion which forms the innermost part of the facing collector portion and has a half-cylindrical shape.

Nonaqueous electrolyte secondary battery, vehicle, and device using battery

An apparatus for calculating a residual capacity of a secondary battery is provided. The apparatus calculates the residual capacity of energy in the secondary battery which is charged/discharged. The apparatus includes an arithmetic unit which estimates and calculates a first residual capacity based on a charge/discharge voltage corresponding to a residual capacity of the secondary battery, calculates a second residual capacity based on an integrated value of a charge/discharge current of the secondary battery, weights the charge/discharge voltage of the secondary battery with the first residual capacity or the second residual capacity according to the voltage changing rate, and combines the results of the weighting to obtain the residual capacity of the secondary battery.

Apparatus for calculating residual capacity of secondary battery

In a lithium-ion secondary battery (), a battery case () has sidewalls (A,B) facing toward side ends of a wound electrode body (), the side ends being at opposite lateral sides of the positive electrode sheet (), and of the sidewalls (A,B), one of the sidewalls (A) (positive-electrode-side sidewall) facing toward an uncoated portion () of the positive electrode sheet () is thicker than the other sidewall (B) (negative-electrode-side sidewall). In other words, the relationship between the thickness A of the one sidewall (A) facing toward the uncoated portion () of the positive electrode sheet () and the thickness B of the other sidewall (B) is A&#x3e;B.

Secondary battery

A multilayer blow molded container having a layer structure that a polyglycolic acid layer is provided as a core layer, and thermoplastic polyester resin layers are arranged as inner and outer layers, wherein the core layer formed of the polyglycolic acid layer is not present between the inner and outer layers in at least part of an opening end portion of the container, and the core layer formed of the polyglycolic acid layer is not present between the inner and outer layers in at least part of a bottom of the container, wherein the melt viscosity x of a polyglycolic acid forming the polyglycolic acid layer is 300 to 900 Pa&#xb7;s as measured at a temperature of 270&#xb0; C. and a shear rate of 122 sec, the melt viscosity y of a thermoplastic polyester resin forming the thermoplastic polyester resin layers is 250 to 600 Pa&#xb7;s as measured at a temperature of 290&#xb0; C. and a shear rate of 122 sec, and a melt viscosity ratio x/y between both melt viscosities is 0.85 to 1.80, and a production process thereof.

Multilayer blow molded container and production process thereof

A lithium-nickel complex oxide material for active material for positive electrode of a lithium secondary battery is provided and expressed by the general formula Li(NiCo)MO(where, 0.98&#x2266;x&#x2266;1.10, 0.05&#x2266;y&#x2266;0.4, 0.01&#x2266;z&#x2266;0.2, M=at least one element selected from the group of Al, Zn, Ti and Mg), wherein according to Rietveld analysis, the Li site occupancy rate for the Li site in the crystal is 98% or greater, and the average particle size of the spherical secondary particles is 5 &#x3bc;m to 15 &#x3bc;m, and wherein the difference in specific surface area between before and after the washing process is 1.0 m/g or less.

Active material for positive electrode of lithium secondary battery

A nonaqueous electrolyte solution in which an electrolyte salt is dissolved in an organic solvent includes, includes at least one or more compounds selected from the silicon compounds represented by general formula (1), (2), or (3) below: (In the formulae, each of R, R, and Rindependently represents a Calkyl, Calkenyl, Calkynyl, or Caryl group; Rrepresents a Calkylene, Calkenylene, Calkynylene, or Carylene group; and n represents 1 or 2. When n is 1, X represents a fluorine atom, trifluoromethyl group, Calkoxy group, Calkenyloxy group, Caryloxy group, or Cacyloxy group, Csulfonyloxy group, isocyanato group, isothiocyanato group, or cyano group. When n is 2, X represents a Calkylene group, Calkylenedioxy group, Calkenylene group, Calkenylenedioxy group, Calkynylene group, Calkynylenedioxy group, Carylene group, Carylenedioxy group, Cdiacyloxy group, oxygen atom, or direct bond.)

Nonaqueous electrolyte solution and secondary battery using the electrolyte solution

An active material for positive electrode for a non-aqueous electrolyte secondary battery comprises a lithium-metal composite oxide that is expressed by the general formula of Li(NiCo)MO(where 0.98&#x2266;x&#x2266;1.10, 0.05&#x2266;y&#x2266;0.4, 0.01&#x2266;z&#x2266;0.2, and where M is at least one metal element selected from the group of Al, Mg, Mn, Ti, Fe, Cu, Zn and Ga), and where the SOion content is in the range from 0.4 weight % to 2.5 weight %, and the occupancy rate of lithium found from the X-ray diffraction chart and using Rietveld analysis is 98% or greater, and the carbon amount measured by way of the high frequency heating-infrared adsorption method is 0.12 weight % or less, and that the Karl Fischer water content due to heating at 180&#xb0; C. be 0.2 weight % or less.

Active material for positive electrode in non-aqueous electrolyte secondary battery having SO4 ions

To provide a positive electrode active material for a non-aqueous electrolyte secondary battery, which if used as a positive electrode for a lithium ion secondary battery, the battery internal resistance can be reduced, giving a secondary battery superior in output characteristics and life property. After mixing raw material powders in specified quantities of each so as to become a lithium-metal complex oxide represented by LiNiMO(wherein M is at least one kind or more of metal elements selected from the group consisting of Co, Al, Mg, Mn, Ti, Fe, Cu, Zn, and Ga; and w and z respectively satisfy 0&#x3c;w&#x2266;0.25, and 1.0&#x2266;z&#x2266;1.1), baking is performed in two stages. At first the temperature is raised from room temperature to a first stage baking temperature (450 to 550&#xb0; C.) at a temperature rise rate of 0.5 and 15&#xb0; C./min, and held for 1 to 10 hours. Then the temperature is raised to a second stage baking temperature (650 to 800&#xb0; C.), and held for 0.6 to 30 hours.

Positive electrode active material for non-aqueous electrolyte secondary battery and manufacturing method thereof, and non-aqueous electrolyte secondary battery using same

A method of manufacturing a non-aqueous electrolyte secondary battery is provided wherein the positive electrode is made from a lithium-metal composite oxide represented by the general formula Li(Ni, Co)MO(0.98&#x2266;x&#x2266;1.10, 0.05&#x2266;y&#x2266;0.4, 0.01&#x2266;z&#x2266;0.2, in which M represents at least one element selected from the group consisting of Al, Mg, Mn, Ti, Fe, Cu, Zn and Ga), and having an average particle diameter of 5 &#x3bc;m to 10 &#x3bc;m a C-amount of 0.14 wt % or less measured by way of the high-frequency heating-IR absorption method, and a Karl Fischer moisture content of 0.2 wt % or less when heated to 180&#xb0; C. and the method comprising the steps of applying a paste of active material for positive electrode to electrode plate to make an electrode, then drying the electrode, and pressing and then installing the electrode in a battery, in a work atmosphere having an absolute moisture content of 10 g/mor less.

Active material for positive electrode for non-aqueous electrolyte secondary battery and method of manufacturing the same

A battery separator of the invention is obtained by press forming a meltblown nonwoven fabric comprising 4-methyl-1-pentene polymer or a 4-methyl-1-pentene/&#x3b1;-olefin copolymer, the battery separator having an average fiber diameter of 0.8 to 5 &#x3bc;m, a basis weight of 9 to 30 g/m, a porosity of 30 to 60%, and a load at 5% elongation in the MD direction (longitudinal direction) of not less than 1.2 (kg/5 cm width). A lithium ion secondary battery of the invention includes the battery separator.

Separator for battery and lithium ion battery using the same

Abnormality of a vehicle is detected while the vehicle is being parked. System normality is set when a tank internal pressure is Kor more for time Tor more. System abnormality is set when the tank internal pressure is K(K&#x3c;K) or more and less than Kafter time Tand a tank internal temperature variation is less than C. System interim abnormality is set when an interim abnormality counter reaches M. The interim abnormality counter is incremented when the tank internal pressure is less than Kand other predetermined vehicle states suffice.

Vehicular abnormality detecting device

Growing community of inventors

Kariya, Japan

Satoru Suzuki