Nissan Motor Company Limited

Yasuhito Miyazaki

Yoshio Shimoida

Takaaki Abe

Yukinari Kato

Naoto Suzuki

Kenji Hosaka

Takuya Kinoshita

Hiroya Fujimoto

Yasuo Yoshikawa

Tomoya Kubota

Hirotatsu Kamimura

Abe Takaaki

Hosaka Kenji

Suzuki Naoto

A route searching method using a route searching device for searching for a first route to reach a destination includes accumulating a history of activities of a driver in a database, when the history of activities is accumulated, setting a region based on a position on a map at which the history of activities is accumulated as a first region, increasing an area of the first region as the history of activities increases, and searching for a secondary route for reaching the destination from the first region using the route searching device.

Route searching method and route searching device

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

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

A voltage detection terminal (---) and a discharge terminal (-) are connected to a peripheral edge portion of a collector (-) of a bipolar battery (). Assuming a first straight line (Da) that connects a centroid of the collector (-) and the voltage detection terminal (-) and a second straight line (Da) that is orthogonal to the first straight line (Da), the discharge terminal (-) is disposed on an opposite side of the second straight line (Da)-the voltage detection terminal (-). A requirement relating to measurement of a voltage of the collector (-) and a requirement relating to discharge are thereby both satisfied.

Bipolar battery

A bipolar battery () is constructed by laminating a plurality of bipolar electrodes (), each constituted by a layer-form collector (), a positive electrode active material layer () disposed on one surface of the collector (), and a negative electrode active material layer () disposed on another surface of the collector (), via an electrolyte layer (). A voltage detection terminal () is attached to a peripheral edge portion of the collector (). By disposing a voltage detection terminal () of an adjacent collector () on an opposite side of a second straight line (Da), which passes through a centroid (O) of the collector () and is orthogonal to a first straight line (Da) that connects the voltage detection terminal () to the centroid (O) of the collector (), a state of charge within an identical unit cell () is made even.

Growing community of inventors

Yokohama, Japan

Yasuhito Miyazaki