Nissan Motor Company Limited

Kaneka Corporation

Rohm Co., Ltd.

Ajinomoto Co., Ltd.

Yoshio Shimoida

Tetsuya Hayashi

Hideaki Tanaka

Masakatsu Hoshi

Shigeharu Yamagami

Hideaki Horie

Kenji Hosaka

Kazuki Miyatake

Yusuke Kato

Osamu Shimamura

Takaaki Abe

Takashi Kikuchi

Norihisa Waki

Masahiro Kojima

Satoshi Oku

Takashi Ito

Yasuyuki Tanaka

Yasuhito Miyazaki

Shiho Inoue

Akiko Waki

Yuji Muroya

Masakazu Kobayashi

Kraisorn Throngnumchai

Hajime Satou

Takuya Kinoshita

Masato Kusakabe

Saichirou Kaneko

Shigeo Ibuka

Masanori Aoyagi

Teruo Segawa

Yasuhiro Yanagihara

Toshiro Shinohara

Gen Takayama

Ryutaro Mukai

Hiroyuki Ogino

Yukinari Kato

Takashi Nakamura

Masanobu Sato

Hiroshi Amano

Teruyoshi Mihara

Kyoichi Watanabe

Masahiro Tsukamoto

Mineo Miura

Gentaro Kano

Takashi Yoshida

Noriaki Kawamoto

Tadayuki Hatsuda

Kyouichi Watanabe

Hiroyuki Kaneko

Keisuke Wakabayashi

Takayuki Kitou

Masami Yanagida

Ryouichi Senbokuya

Masanori Yamagiwa

Tomoya Kubota

Takahiro Iwasaki

Kouichiro Yonekura

Toshiro Karaki

Yasutaka Nakamura

Seiji Ishimoto

Daijirou Sakurai

Tomohisa Matsuno

Yuichiro Yamamura

Toshirou Karaki

Toshifumi Fukushige

Kraisom Throngnumchai

Ohtani Yoshihiko

Keiji Ogino

Yamamura Yuichiro

Jyun Ikezawa

Junya Kohno

Naoki Nishio

Noboru Nakano

Yoshihiko Ohtani

Hideaki Hori

Yanagihara Yasuhiro

Miura Mineo

Kitou Takayuki

Hoshi Masakatsu

Tanaka Hideaki

Hayashi Tetsuya

Kawamoto Noriaki

Yamagami Shineharu

A charging control unit determines whether the electric vehicles are coupled to the respective charging ports and calculates the estimate value Tc and the estimate value Tr for every charging port coupled. The estimate value Tc is the period from start of charging to completion of charging. The estimate value Tr is the period from completion of charging to departure. The charging control unit, when the electric vehicle coupled t last is set to the N-th vehicle and the electric vehicles already coupled are set to the first to N&#x2212;1-th vehicles in the order of being coupled, and only when Formula (4) is satisfied by all the first to N&#x2212;1-th vehicles, starts charging of the N-th vehicle. The charging control unit controls to resume charging of the vehicle that was charging immediately before the N-th vehicle started charging as soon as charging of the N-th vehicle finishes.

Charging control unit and charging control method

A current collector for a battery includes: a layer () formed from an electrically conductive material and at least one of (a) a polymer compound having an alicyclic structure, (b) a saturated hydrocarbon polymer compound having a hydroxyl group, (c) a phenoxy resin and an epoxy resin, and (d) an amine having an amine equivalent of 120 g/eq or less and an epoxy resin; a layer () which is formed on at least one surface of the layer (); and a layer () formed from an electrically conductive material. The current collector for a battery has stability to an equilibrium potential environment in a negative electrode, a low electric resistance, a blocking property to solvent in electrolytic solution, and a blocking property to a component in an electrolyte. In addition, the current collector for a battery has a high capacity retention rate, and battery durability is improved.

Current collector for battery and battery using same

A conductive film includes a layer 1 formed by a conductive material 1 that includes a polymer material 1 containing any of (1) an amine and an epoxy resin (where the epoxy resin and the amine are mixed in a ratio of 1.0 or more in terms of the ratio of the number of active hydrogen atoms in the amine with respect to the number of functional groups in the epoxy resin), (2) a phenoxy resin and an epoxy resin, (3) a saturated hydrocarbon polymer having a hydroxyl group, and (4) a curable resin and an elastomer and conductive particles 1. The conductive film has excellent stability in an equilibrium potential environment in a negative electrode and low electric resistance per unit area in the thickness direction. A multilayer conductive film including the conductive film achieves excellent interlayer adhesion, and using them as a current collector enables the production of a battery satisfying both weight reduction and durability.

Conductive film, current collector using same, battery and bipolar battery

Provided is a bipolar battery current collector that includes a conductive resin layer formed in such a manner as to, when at least part of the conductive resin layer reaches a predetermined temperature, interrupts a flow of electric current through the at least part of the conductive resin layer in a vertical direction thereof. Also provided is a bipolar battery using the current collector. It is possible by the use of the current collector to suppress local heat generation in the bipolar battery and improve the durability of the bipolar battery.

Bipolar battery current collector that contracts to interrupt a flow of electric current in a direction thereof and bipolar battery

A bipolar electrode includes a collector; a positive electrode active material layer disposed on one surface of the collector; and a negative electrode active material layer disposed on the other surface of the collector. The quotient of the volume resistance of the collector and that of the positive and negative electrode active material layers is between 10and 10. The bipolar electrode further includes a current distribution relaxation layer having a volume resistivity lower than that of either the positive electrode active material layer or the negative electrode active material layer. At least one active material layer having a volume resistivity larger than that of the current distribution relaxation layer is disposed between the current distribution relaxation layer and the collector.

Bipolar electrode and bipolar lithium-ion secondary battery using same

A cell module includes a unit cell, a sensor, a calculation device, a storage device, an assessment device and a controller. The sensor is connected to the unit cell. The calculation device is for calculating a value indicating the state of the unit cell on the basis of a value measured by the sensor. The storage device is for recording calculated values calculated by the calculation device. The assessment device is for assessing illegitimate usage of the cell module. The controller is for controlling the calculation device, the storage device, and the assessment device, the control device deleting calculated values recorded in the storage device and prohibiting recording of calculated values to the storage device when the assessment device assesses that illegitimate usage has occurred.

Cell module

A multilayer conductive film includes a layerincluding a conductive material containing a polymer materialhaving an alicyclic structure and conductive particlesand a layerincluding a material having durability against positive electrode potential. The multilayer conductive film has stability in an equilibrium potential environment in a negative electrode and stability in an equilibrium potential environment in a positive electrode, has low electric resistance per unit area in the thickness direction, and has excellent barrier properties for a solvent of an electrolytic solution. A battery including a current collector employing the multilayer conductive film can achieve both weight reduction and durability.

Multilayer conductive film, current collector using same, battery and bipolar battery

In a device for controlling an assembled battery provided with a plurality of single batteries, the device includes a capacity adjustment section for adjusting a capacity such that voltages of the single batteries are equalized at a targeted voltage, an internal state detection section for detecting terminal voltages or SOC of the single batteries and for detecting, based on the detected terminal voltages/SOC, a voltage/SOC difference among the single batteries as voltage-difference/SOC-difference data, and a time-series data storage for storing the voltage-difference/SOC-difference data in time-series. Also provided is a prediction section for more appropriately predicting time when the assembled battery becomes an abnormal state, based on a time-dependent change in the voltage-difference/SOC-difference data detected in a voltage/SOC region different from the targeted voltage by a predetermined voltage, among the stored time-series voltage-difference/SOC-difference data.

Device for controlling assembled battery

A battery control device is provided that uses a discharge to adjust the capacitance of cells that form a bipolar battery and calculates the voltage increase value of the remaining cells that do not discharge to adjust capacitance if one or more cells, among all of the cells that form the bipolar battery, are discharged to adjust capacitance in a battery control device that controls voltage dispersion or volume dispersion between cells that form the bipolar battery; and setting the general discharge value when there is a discharge to adjust capacitance on the basis of the result of the voltage increase value calculation.

Bipolar battery control device for adjusting a voltage or capacitance in cells

A method for producing a semiconductor device () is disclosed. The semiconductor device () includes: 1) a semiconductor substrate (), 2) a hetero semiconductor area () configured to contact a first main face (A) of the semiconductor substrate () and different from the semiconductor substrate () in band gap, 3) a gate electrode () contacting, via a gate insulating film (), a part of a junction part () between the hetero semiconductor area () and the semiconductor substrate (), 4) a source electrode () configured to connect to the hetero semiconductor area (), and 5) a drain electrode () configured to make an ohmic connection with the semiconductor substrate (). The method includes the following sequential operations: i) forming the gate insulating film (); and ii) nitriding the gate insulating film ().

Method for producing semiconductor device

Disclosed is a battery having an improved life. Specifically disclosed is a battery which comprises an electric power generating element in which one or more unit cell layers are stacked, each being constituted by sequentially laminating or stacking a positive electrode, an electrolyte and a negative electrode; a first collector plate which is provided on the outermost positive electrode surface of the electric power generating element; a second collector plate which is provided on the outermost negative electrode surface of the electric power generating element; a convex or protruding portion provided on the first collector plate and/or the second collector plate with a width that is not less than a half of the width of the end edge of the collector plate; and a terminal which is attached to the convex portion for retrieving electric current from the convex portion.

Battery

The disclosure discusses a secondary battery with superior durability and a vehicle configured to mount the same. The secondary battery comprises an electrode structure wherein a cathode is formed at one side of a base material layer having electrical insulating property and an anode is formed at another side of the base material layer. A plurality of electrode structures are stacked with an electrolyte layer interposed therebetween such that the cathode and anode of adjacent electrode structures are on opposite sides of the electrolyte layer.

Secondary battery and vehicle mounting the same

When a bipolar battery is manufactured, a bipolar electrode and a separator are prepared first. Then, one electrode (for example, a positive electrode) out of positive and negative electrodes is applied with such an amount of electrolyte as being exposed on a surface of the one electrode. Then, the separator is arranged on the surface of the one electrode applied with the electrolyte, thus forming a sub-assembly unit. Then, a plurality of the sub-assembly units are layered, and the electrolyte applied to the one electrode is made to permeate through the separator to the other electrode, thus forming an assembly unit.

Bipolar battery manufacturing method, and bipolar battery

Embodiments of a battery taught herein are directed to preventing a displacement between bipolar battery stacks or between a bipolar battery stack and an electrode tab. A bonding portion is formed at a part of a contact surface where a collector positioned at both ends in a stacking direction of a bipolar battery stack is bonded to the electrode tabs. The electrode tab and the collector are fixed by such a bonding portion. Further, the bonding portion is formed at a part of a contact surface where adjacent bipolar battery stacks are bonded to each other. Bipolar batteries positioned at upper and lower portions in the stacking direction are fixed by such a bonding portion.

Bipolar secondary battery, battery assembly formed by connecting said batteries and vehicle mounting same

Disclosed is a cell with a power-generating element and an outer package. The power-generating element includes a unit cell layer including a first electrode, a second electrode and an electrolyte layer disposed between the first and second electrodes. In the first electrode, a first collector is provided with one of a positive electrode active material layer and a negative electrode active material layer. In the second electrode, a second collector is provided with the other one of the positive and negative electrode active material layers. The first and second collectors have thicknesses such that when a conductor from outside penetrates at least two cells and a short circuit is formed between two cells via the conductor, shorted portions of the first and second collectors are fused by the heat generated by the current before the temperature of the cells reaches a predetermined value so that the short circuit is blocked.

Cell for reducing short circuit and battery incorporating the cell

Growing community of inventors

Yokosuka, Japan

Yoshio Shimoida