Panasonic Intellectual Property Management Co., Ltd.

Panasonic Holdings Corporation

Katsuji Sumimoto

Yoshiro Kitamura

Masahiro Mori

Akihiro Horikawa

Kazuki Fujiwara

A laser slicing apparatus for dividing a workpiece with a laser beam, including: a light shielding area detection section that detects light shielding areas existing on a side of a first surface of the workpiece; and a control section that radiates a first laser beam from the side of the first surface so as to scan across a whole area of the first surface of the workpiece and form a first modified layer in a to-be-sliced plane inside the workpiece, and that radiates a second laser beam to the light shielding areas of the workpiece from a second surface on an opposite side of the first surface and form a second modified layer in such a manner that the second modified layer is continuous with the first modified layer in the to-be-sliced plane.

Laser slicing apparatus and laser slicing method

An all-solid battery is formed by laminating a first current collector, a positive-electrode layer, a solid electrolyte layer, a negative-electrode layer, and a second current collector in this order. The positive-electrode fine particle layer contains positive-electrode active material fine particles having a particle diameter smaller than that of the positive-electrode active material and is formed on a side surface of the positive-electrode layer. The negative-electrode fine particle layer contains negative-electrode active material fine particles having a particle diameter smaller than that of the negative-electrode active material and is formed on a side surface of the negative-electrode layer.

All-solid battery and method of manufacturing the same

Provided herein is a solid-state battery having high volume energy density, as well as a method of manufacture of such a solid-state battery. A solid-state batteryis a laminate including a first collector layer, a positive electrode layer, a solid electrolyte layer, a negative electrode layer, and a second collector layer, in this order from the top. The solid-state batterysatisfies &#x3b1;&#x3e;90&#xb0;, &#x3b2;&#x3e;90&#xb0;, and &#x3b1;&#x3e;&#x3b2;, where &#x3b1; is the angle formed in the positive electrode layerby a side surfaceA of the positive electrode layerand the top surface of the solid electrolyte layerunderlying the positive electrode layer, and &#x3b2; is the angle formed in the negative electrode layerby a side surfaceA of the negative electrode layerand the top surface of the second collector layerunderlying the negative electrode layer

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Nara, Japan

Katsuji Sumimoto