Nec Corporation

Samsung Sdi Co., Inc.

Samsung Display Co., Ltd.

Yukiko Morioka

Hitoshi Ishikawa

Atsushi Oda

Satoru Toguchi

Kentaro Nakahara

Shigeyuki Iwasa

Masaharu Satoh

Hiroshi Tada

Jiro Iriyama

Masahiro Suguro

Yutaka Bannai

Koji Kudo

Hisato Sakuma

Etsuo Hasegawa

Hiroshi Yageta

Hiroo Hongo

Sadahiko Miura

Yuki Kusachi

Sigeyuki Iwasa

Yutaka Ban-Nai

An energy system includes an electric device that consumes electric power, a plurality of storage batteries that supplies stored electric power to the electric device, each of the storage batteries being chargeable and dischargeable under the control of an external device, and an information processor that divides the plurality of storage batteries into families which includes the storage batteries having similar charging and discharging characteristics, and that controls the timings to charge and discharge the storage batteries in the family.

Energy system

An electric device has an electric power measurement unit with an electric power detection element measuring consumed electric power and an information communication element transmitting the measured power. An electric power meter has an information communication element measuring and transmitting total electric power consumed indoors. An information processing unit stores the measured values in every predetermined sampling period. If a difference &#x3b1; of two measurement values of the electric power detection element is a finite value, the information processing unit calculates and stores both a difference &#x3b2; of two measurement values of the electric power meter corresponding to the two measurement values and &#x3b2;/&#x3b1;, and calibrates the amount of electric power consumed by the electric device and that is measured by the electric power detection element using a median of values of &#x3b2;/&#x3b1; obtained in a predetermined measurement period or a median of a predetermined number of values of &#x3b2;/&#x3b1;.

Electric power measurement system, electric power measurement method, and information processing device

An energy system having a plurality of storage batteries and renewable power supplies includes an information processor. Each of the storage batteries is individually set to a maximum SOC representing a charging limit and a minimum SOC representing a discharging limit. Each of the storage batteries is chargeable and dischargeable under the control of an external device and is capable of measuring SOC values. The information processor controls charging and discharging processes of the storage batteries individually to keep the storage batteries charged until SOC values acquired from the storage batteries reach the maximum SOC when the storage batteries are charged and to keep the storage batteries discharged until SOC values acquired from the storage batteries reach the minimum SOC when the storage batteries are discharged.

Disclosed is a polyradical compound which can be used as an electrode active material for at least one of a positive electrode and a negative electrode. The polyradical compound has a repeating unit represented by general formula (1) and is crosslinked using a bifunctional crosslinking agent having two polymerizing groups in the molecule represented by general formula (2), wherein Rto Reach independently represent hydrogen or methyl group; Rto Reach independently represent C1 to C3 alkyl group; X represents single bond, linear, branched or cyclic C1 to C15 alkylenedioxy group, alkylene group, phenylenedioxy group, phenylene group or structure represented by general formula (3); and Rto Reach independently represent hydrogen or methyl group, and k represents an integer of 2 to 5. 

Process for producing polyradical compound and battery cell

An organic EL device including at least an anode, a cathode and an organic light-emitting zone with high brightness is provided. A mixture containing at least two compounds is used for a light-emitting zone and the spectrum of the luminescence from light-emitting zone includes at least one peak at a wavelength which is different from neither of fluorescent peak positions of the compounds included in light-emitting zone.

Organic electroluminescence device

A radical compound may be used as an active material for an anode layerto provide a novel stable secondary battery with a higher energy density and a larger capacity. The radical compound used has, for example, a spin concentration of 10spins/g or more.

Secondary battery with a radical compound active material

A secondary battery is provided which has a high energy density, a high capacity, an excellent stability in charge-discharge cycle as well as an excellent safety. The secondary battery comprises at least a positive electrode, a negative electrode and an electrolyte, wherein an active material of at least one of the positive and negative electrodes includes at least one compound selected from the group consisting of radical compounds represented by the formula (1) or the formula (3): (in the formula (1), X1 and X2 each independently represent a group represented by the formula (3), alkoxyl group, halogen atom, hydroxyl group or cyano group, and R1&#x2dc;R8 each independently represent hydrogen atom or alkyl group.) (in the formula (3), R10 represents alkyl group or substituted or unsubstituted phenyl group.)

Secondary battery having an active material radical compound

An object of the present invention is to provide a battery which is high in capacity density and superior in stability. An electrode containing a compound having a diazine-N,N'-dioxide structure shown by a general formula (1) described below as an electrode active material is used, where x, y, x&#x2032;, and y&#x2032; independently shows integer numbers of 0 or more respectively, and the order of condensation of diazine rings and benzene rings may be alternate or random. One of substituents R, R, R, R, R, R, R, and Rshows a part of main chain or side chain of oligomer or polymer, and the other independently shows hydrogen atom, halogen atom, or a specific group.

Electrode active material and electrode using the electrode active material and battery using the electrode

A battery, which has excellent safety in an overcharged state and is excellent in low-temperature characteristics and cycle characteristics, is provided. The electrolytic solution of the secondary battery contains a compound which has a diazine N,N'-dioxide structure represented by general formula (1). in which, n, m, n&#x2032;, and m&#x2032; each independently are an integer 0 or larger; the diazine rings and the benzene rings may be condensed alternately or randomly; and substituents R, R, R, R, R, R, R, and Reach independently represent hydrogen atom, halogen atom, or specific group. However, when n is 2 or larger, then Rand Rmay be the same or different, and when n&#x2032; is 2 or larger, then Rand Rmay be the same or different. In addition, these substituents, in cooperation with each other, may form a ring structure.

Electrolytic solution for secondary battery and secondary battery containing the same

A charge storage device such as a battery, wherein a positive electrode comprises a nitroxyl compound having a structure of a nitroxyl cation moiety represented by formula (I) in an oxidized state while having a structure of a nitroxyl radical moiety represented by formula (II) in a reduced state and a reaction represented by reaction formula (A) in which an electron is transferred between these states is used as a positive electrode reaction. The charge storage device can have a higher energy density and can be used at a large current. 

Electricity storage device

An organic electroluminescence material of the present invention includes, in order to provide an durable organic EL device emitting light of high brightness, a compound shown by the general formula (A-I) or (B-I) (as explained in the specification) wherein, Ato Awhich may be the same or different, are independently each a substituent shown by the general formula (A-II) (as explained in the specification): and a, b, and bare independently each an aryl group which may be substituted, ahaving at least one substituent shown by the general formula (B-II) (as explained in the specification), and band beach having at least one substituent shown by the general formula (B-III) (as explained in the specification), and band bmay be the same of different.

Organic electroluminescence material and electroluminescence device using the same

The present invention relates to a battery comprising at least a positive electrode, a negative electrode and an electrolyte as composing elements, wherein the positive electrode and/or the negative electrode comprise an active material of nitroxyl radical compound represented by the following general formula (1) as a starting material or a reaction product of at least a discharge reaction of electrode reactions: 

Battery and battery electrode

In a secondary battery comprising a positive electrode, a negative electrode and an electrolyte therebetween, active material of one of the positive electrode and the negative electrode includes a compound having boron radicals or sulfur radicals.

Secondary battery having radical compound electrode

An electrode including a compound acting as an electrode active material and represented by a general formula (1) having a diazine N,N'-dioxide structure. A novel battery with the higher specific density and the excellent charge and discharge stability can be provided by incorporating the electrode having the compound represented by the general formula (1).[General Formula 1]

Electrode and battery using same

An organic EL device comprising an anode, a cathode, and one or more organic thin-film layers having a light-emitting layer sandwiched between the anode and the cathode, the organic thin-film layers including, either singly or as a mixture, a perylene compound represented by a general formula [1] or a benzoperylene compound represented by a general formula [2].

Growing community of inventors

Tokyo, Japan

Yukiko Morioka