Nissan Motor Company Limited

Enax, Inc.

Kyouichi Watanabe

Hideaki Horie

Osamu Shimamura

Takuya Kinoshita

Takamitsu Saito

Kazunori Ozawa

Hajime Sato

Yoshio Shimoida

Takaaki Abe

Kenji Hosaka

Yasuhiro Yanagihara

Yuuji Tanjou

Takanori Ito

Yoshinori Naruoka

Chizuru Matsuyama

Takao Takasaki

Yuichiro Yamamura

Hironori Ozawa

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

A battery electrode, includes: a collector; and an active material layer formed on a surface of the collector and including: an active material, and a conductive additive having a bulk density which is gradually decreased in a direction from a collector side of the active material layer to a surface side of the active material layer.

Battery electrode having layers of differing bulk densities of conductive additive

An electrode and method for preparing the same in which droplets of a first electrode ink composition and droplets of a second electrode ink composition are ejected from an ink jet device onto a base material and the first electrode ink composition contains at least one electrode active material and the second electrode ink composition contains at least one binder material. The resulting electrode is suitable for use in a battery.

Electrode for use in a battery

A method for preparing an electrode in which droplets of a first electrode ink composition and droplets of a second electrode ink composition are ejected from an ink jet device onto a base material. The first electrode ink composition contains at least one electrode active material and the second electrode ink composition contains at least one binder material. The two ink compositions are deposited in combination to form one of a positive electrode and a negative electrode layer. The resulting electrode is suitable for use in a battery.

Method of making an electrode for use in a battery

A cell structure that can improve heat dissipation and the vibration-proofing nature of a cell without using a cooling medium while keeping the rigidity and the discharge current quantity of the cell includes at least one electrode having a positive pole active material layer, a current collector and a negative pole active material layer. The cell structure also includes a separator provided between each electrode; and a casing. The cell structure satisfies the inequality: wherein b (mm) indicates a short-side length of the electrode, S (m) indicates an electrode area, c (mm) indicates a cell structure thickness and 1000 (m/mm) is a constant. The separators have a different Shore A hardness and the separator having the lowest Shore A hardness is placed at a center of the cell structure.

Cell structure having improved heat dissipation and lower vibrations

A secondary cell module and the method of its production, which comprises a combination cell formed by connecting the positive and/or the negative electrode terminal(s) of multiple secondary cells in series and/or in parallel with each other through a metal bus-bar and a casing which contains the combination cell, wherein the secondary cell is formed in a sheet shape and comprises sheet-type internal electrode couple, electrolytic solution and a flexible outer wrapper of envelope type which contains them in a sealed state. The secondary cell module is of a simple structure and it can be small-sized and light-weighted or thin-shaped as necessary and the heat which generates inside the cell can be efficiently diffused to outside, thereby enabling the production of cells of high capacity with a high degree of freedom in designing its shape as well as supreme productivity.

Secondary cell module and method of its production

A flat cell of the present invention has: a power-generating element which includes a positive plate, a negative plate, and a separator provided between the positive and negative plates; a sheath member which is composed of a upper sheath member and a lower sheath member and accommodates the power-generating element; and positive and negative terminals connected to the power-generating element through a plurality of collectors and extended from a outer periphery of the sheath member. The upper sheath member includes a flat wall in a portion accommodating the power-generating element and an inclined wall between the flat wall and the outer periphery of the sheath member. When the inside of the cell is evacuated, the inclined wall is curved toward the inside of the cell.

Flat cell, battery, combined battery, and vehicle

A battery pack has a unit cell packaged by a package material of a laminate type, an outer case which accommodates the unit cell therein, and a vibration isolation device which attenuates vibrations inputted to the outer case and transmitted to the unit cell by pressing one side surface of the unit cell. The vibration isolation device is disposed between the unit cell and the outer case, and includes a first press structure which presses the one side surface of the unit cell. The first press structure is constituted by connecting one surface of the outer case, the one surface facing to the one side surface of the unit cell, and a press plate abutting against the one side surface of the unit cell with an elastic member interposed therebetween.

Growing community of inventors

Yokohama, Japan

Kyouichi Watanabe