Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Yukikazu Ohchi

Hiroshi Kubota

Yukihiro Shimasaki

Hiroki Takeoka

Hiroshi Fujii

Mikio Murai

Masaru Odagiri

Kiyoshi Takahashi

Hideyuki Ueda

Tomokazu Sada

Kenji Kuwahara

Kazuya Hayayama

Masatoshi Nagayama

Yoshiaki Kai

Hiroshi Seki

Tatsuya Hiwatashi

Takao Yamamoto

Kiyosi Takahasi

Yasuhiro Hiraki

Ryosuke Kamiura

Tetuo Fuchi

Ryo Majima

Hiroshi Tenmyou

A deterioration diagnosis unitof an arithmetic unitconstituting a remaining performance evaluation systemdiagnoses the deterioration degree of a secondary batterythat has already been used for primary use based on an actual measurement value. The deterioration speed update unitupdates the deterioration speed of the secondary batterybased on the diagnosis result of the secondary battery. The remaining performance estimation unitestimates the remaining performance of the secondary batteryafter the start of secondary use based on the updated deterioration speed and a usage method at the time of the secondary use of the secondary battery

Remaining capability evaluation method for secondary battery, remaining capability evaluation program for secondary battery, computation device, and remaining capability evaluation system

A state estimator estimates, based on at least one of a voltage, a current, and a temperature of a secondary battery, a state of the secondary battery including a state of charge (SOC) of the secondary battery. A discharge controller discharges, when a state of non-use of the secondary battery lasts for a predetermined period of time, the secondary battery such that an indicator indicating easiness of storage deterioration of the secondary battery to progress decreases in stages. The indicator includes a parameter that depends on an SOC of the secondary battery. A value of the indicator and a duration of stay in each stage are set such that a predetermined relationship holds between products in a plurality of stages, each of the products being derived from multiplying the value of the indicator and the duration of stay in each stage.

Battery management device, battery system, and vehicle power supply system for managing battery state of charge level when in non-use state

According to the present invention, a state management unit measures or estimates the AC resistance value of a secondary cell at a plurality of time points, estimates a predicted transition of the AC resistance value of the secondary cell on the basis of the AC resistance value at the plurality of time points, and estimates a remaining use period until the AC resistance value of the secondary cell reaches a resistance threshold value corresponding to a time point at which usage of the secondary cell ends. When the remaining use period of the secondary cell becomes shorter than a prescribed period, an operation management unit changes the usage manner of the secondary cell method to a usage manner that has a smaller load on the secondary cell, or stops the usage of the secondary cell.

Battery management device, battery system, and battery management method for estimating transition of AC resistance value of secondary battery

In this power supplying device used in this power storage system, a power supplying unit charges a battery. A control unit controls the power supplying unit so as to charge the battery in a pulsed manner, in at least a part of a charging period of the battery. The control unit extends a unit on time and a unit off time when charging in the pulsed manner, as the temperature of the battery becomes lower.

Power supplying device, power storage system, and charging method

A metallized film composed of a dielectric film, a metal thin film layer and a dielectric layer, the metal thin film layer being formed on at least one surface of the dielectric film, the dielectric layer being formed on the metal thin film layer, and the dielectric layer being composed of acrylic acid ester resin as a main component being composed of dimethylol tricyclodecane diacrylate and monoacrylate containing a heterocycle.

Metallized film and metallized film capacitor using same

A metalized film capacitor includes metalized films, each of which is formed of an insulating film made of dielectric, and a vapor deposited metal electrode formed on an upper surface of the insulating film. An end of the vapor deposited metal electrode extends together with an end of the insulating film, and both the ends are connected to an electrode terminal. The vapor deposited metal electrode of the metalized film includes a center region and a low resistance section that is made of Al&#x2014;Zn&#x2014;Mg alloy. The low resistance section is disposed at an end of the electrode and is thicker than the center region. This metalized film capacitor has high humidity resistance.

Metalized film capacitor

A metallized film capacitor includes first and second metal electrodes, a dielectric film disposed between the first and second metal electrodes, and first and second external electrodes which are connected to the first and second metal electrodes, respectively. At least one of the first metal electrode and the second metal electrode comprises magnesium. The magnesium is distributed unevenly in the at least one of the first metal electrode and the second metal electrode.

Metallized film capacitor and case mold type capacitor including same

A metallized film capacitor includes a dielectric film and two metal vapor-deposition electrodes facing each other across the dielectric film. At least one of the metal vapor-deposition electrodes is made of substantially only aluminum and magnesium. This metallized film capacitor has superior leak current characteristics and moisture resistant performances, and can be used for forming a case mold type capacitor with a small size.

A metalized film capacitor includes a first dielectric film, a first metal thin-film electrode provided on a surface of the first dielectric film, a second dielectric film provided on the first metal thin-film electrode, and a second metal thin-film electrode provided on the second dielectric film, such that the second metal thin-film electrode faces the first metal thin-film electrode across the second dielectric film. The surface of the first dielectric film has a surface energy ranging from 25 mN/m to 40 mN/m. The metalized film capacitor exhibits high heat resistance and a preferable self-healing effect.

A lubricant is obtained by mixing at least one compound selected from specific fluorine-based diester dicarboxylic acid compounds having has two carboxyl groups, two ester bonds, terminal groups each of which is an alkyl group or an alkenyl group, and one fluoroether or one fluoropolyether chain with at least one compound selected from specific fluorine-based diester compounds having two ester bonds, two terminal groups each of which is an alkyl group or an alkenyl group, one fluoroether or one fluoropolyether chain and specific fluorine-based monoester compounds one ester bond, one terminal group that is an alkyl group or an alkenyl group, and one terminal group that is a fluoroalkyl group, a fluoroether group or a fluoropolyether group, and preferably a specific fluorine-based amino-alcohol compound, and this lubricant is used to form a lubricant layer of a magnetic recording medium.

Lubricant, magnetic recording medium and production method of magnetic recording medium

A lubricant composition having excellent lubricity and comprising at least one compound selected among fluorine compounds each having a perfluoroalkyl or perfluoroether group and an alkyl or alkenyl group in the molecule and at least one compound selected among fluorine compounds each having a perfluoropolyether group in the molecule; and a magnetic recording medium excellent in running durability and still durability and comprising a nonmagnetic substrate (1) and, formed thereon in this order, a ferromagnetic thin metal film (2), a carbon film (3), and a lubricant layer (4), wherein the lubricant layer (4) contains the lubricant composition.

Lubricant composition magnetic recording medium, and process for producing magnetic recording medium

A magnetic recording medium comprising a non-magnetic substrate, a ferromagnetic thin film on the non-magnetic substrate, a hard carbon film on the ferromagnetic thin film, a modified layer of which atomic ratio of nitrogen/carbon is 0.8% or more, and of which thickness is less than 3 nm on the hard carbon film, and a lubricant layer on the modified layer, has excellent electromagnetic conversion characteristic, running stability, durability, and weatherability.

Magnetic recording medium and its manufacturing method

A fluorine-containing carboxylic acid amine salt of Formula A below: ##STR1## wherein R.sup.1 denotes an aliphatic alkyl group or an aliphatic alkenyl group with 6 to 30 carbons; R.sup.2 denotes a group selected from the group consisting of a fluoroalkyl group with 3 to 30 carbons, a fluoroalkenyl group with 3 to 30 carbons, a fluorophenyl group with 6 to 18 carbons, and a fluoroalkylether group with 5 to 50 carbons; R.sup.3 and R.sup.4 each denotes a saturated or unsaturated hydrocarbon chain with 1 to 20 carbons; R.sup.5 denotes either a fluoroalkyl group with 3 to 30 carbons or a fluoroalkenyl group with 3 to 30 carbons; n denotes 0 or 1; X denotes hydrogen or -(R.sup.6) -R.sup.7 ; and Y denotes hydrogen or -(R.sup.8) -R.sup.9, where R.sup.6 and R.sup.8 each denotes a saturated or unsaturated hydrocarbon chain with 1 to 20 carbons, and R.sup.7 and R.sup.9 each denotes a fluoroalkyl group with 3 to 30 carbons or a fluoroalkenyl group with 3 to 30 carbons.

Fluorine-containing carboxylic acid amine salt and a magnetic recording

A magnetic recording media comprising a non-magnetic substrate, a ferromagnetic thin film on the non-magnetic substrate, a hard carbon film on the ferromagnetic thin film, a modified layer of which atomic ratio of nitrogen/carbon is 0.8% or more, and of which thickness is less than 3 nm on the hard carbon film, and a lubricant layer on the modified layer, has excellent electromagnetic conversion characteristic, running stability, durability, and weatherability.

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Osaka, Japan

Yukikazu Ohchi