Gifu, Japan
Gifu, Japan

SANYO Electric Co., Ltd. is a Japanese major electronics company and member of the Fortune Global 500 whose headquarters is located in Moriguchi, Osaka prefecture, Japan. Sanyo targets the middle of the market and has over 230 subsidiaries and affiliates.On December 21, 2009 Panasonic completed a 400 billion yen acquisition of a 50.2% stake in Sanyo, making Sanyo a subsidiary of Panasonic. In July 2010, Panasonic announced that they would acquire the remaining shares of Sanyo. Wikipedia.


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Patent
SANYO Electric Co. | Date: 2016-09-28

A prismatic secondary battery in which a deformation plate becoming deformed when a pressure inside the battery becomes equivalent to or higher than a predetermined value is disposed in a conductive path between a positive electrode plate and a positive electrode terminal. A positive electrode collector electrically connected to the positive electrode plate includes a collector body portion disposed on an electrode body side of the deformation plate, a collector connection that extends from an end of the collector body portion in a longitudinal direction of a sealing plate towards the sealing plate, and a lead portion that extends from the collector connection in the longitudinal direction of the sealing plate. A positive electrode tab portion is connected to the lead portion.


Patent
SANYO Electric Co. | Date: 2016-09-28

An electrode body including a positive electrode plate and a negative electrode plate is accommodated in a prismatic outer package having an opening. The opening of the prismatic outer package is sealed with a sealing plate. The electrode body includes positive electrode tab portions stacked at an end portion on the sealing plate side. The stacked positive electrode tab portions are divided into two forming a first tab group and a second tab group. A resin member serving as a holding member holding a metal member is fixed to the sealing plate. The metal member is disposed between the first tab group and the second tab group. Lead portions of a positive electrode collector is connected to the first tab group and the second tab group at a surface positioned opposite to a surface that opposes the metal member.


Patent
SANYO Electric Co. | Date: 2016-09-28

A prismatic secondary battery in which a deformation plate becoming deformed when a pressure inside the battery becomes equivalent to or higher than a predetermined value is disposed in a conductive path between a positive electrode plate and a positive electrode terminal, a positive electrode collector connected to the positive electrode plate includes a collector body portion, a collector connection, and a lead portion, the end portion of the lead portion on one end portion side of the sealing plate in the longitudinal direction is positioned on the one end portion side of the sealing plate in the longitudinal direction with respect to an end portion of the collector body portion on the one end portion side of the sealing plate in the longitudinal direction, the collector body portion is connected to the deformation plate, and the lead portion is connected to a positive lead portion.


In a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution contains a nitrile compound having a chain saturated hydrocarbon group and a nitrile group, the number of carbon atoms in the nitrile compound is four or more, and the positive electrode contains a positive-electrode active material on the surface of which particles of a rare earth element compound are deposited in dispersed form.


Patent
SANYO Electric Co. | Date: 2016-06-28

A wound electrode body includes a negative electrode core body exposed portion on one of the end portions of the wound electrode body in a winding axis direction, which is layered by being wound. A core body connection of a negative electrode collector is disposed on one of the outer surfaces of the layered negative electrode core body exposed portion, and a negative electrode collector receiving component is disposed on the other one of the outer surfaces. Furthermore, tapes are each disposed between the core body connection and the negative electrode core body exposed portion and between the negative electrode collector receiving component and the negative electrode core body exposed portion. Each tape includes a base material layer, and an adhesion layer containing a coloring agent.


A nonaqueous electrolyte secondary battery includes a prismatic housing having an opening and a sealing member sealing the opening. The prismatic housing contains a flat-wound electrode assembly and a nonaqueous electrolyte. The flat-wound electrode assembly includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode substrate and a positive electrode active material mixture layer formed on the positive electrode substrate. The positive electrode active material mixture layer contains lithium carbonate and lithium phosphate. The nonaqueous electrolyte contains lithium fluorosulfonate.


Patent
SANYO Electric Co. | Date: 2016-07-20

A positive electrode sheet is electrically connected to a positive terminal with a positive electrode current collector, a deformable plate, and a conductive member interposed therebetween. When the pressure inside a battery is higher than or equal to a predetermined value, the deformable plate is deformed toward a sealing plate and an annular groove formed on a base portion of the positive electrode current collector is broken due to deformation of the deformable plate so that a conductive path between the positive electrode sheet and the positive terminal is disconnected. A first insulating member disposed between the deformable plate and the base portion of the positive electrode current collector includes a first rotation preventing protrusion on a surface thereof on a wound electrode body side and outside an outer circumferential edge of the base portion of the positive electrode current collector.


Patent
SANYO Electric Co. | Date: 2016-07-20

A conductive member including an opening portion is connected to a positive terminal and is integrally secured to a sealing plate together with an outer insulating member and a second insulating member. The conductive member opening portion is sealed by a deformable plate. A base portion of a positive electrode current collector is connected to the deformable plate. A first insulating member that is disposed between the deformable plate and the base portion of the positive electrode current collector includes a pair of first catch portions that are disposed so as to be aligned in a longitudinal direction of the sealing plate and a pair of second catch portions that are disposed so as to be aligned in a transverse direction of the sealing plate. The first catch portions and the second catch portions are connected to the second insulating member disposed between the sealing plate and the conductive member.


Patent
SANYO Electric Co. | Date: 2016-03-09

A prismatic outer body includes an opening, a bottom, a pair of large-area side walls, and a pair of small-area side walls. The opening is sealed by a sealing plate, a flat-shaped electrode body is housed in the prismatic outer body, a positive electrode tab portion and a negative electrode tab portion are disposed on one end of the electrode body closer to the sealing plate than the other end and are electrically connected to a positive electrode terminal and a negative electrode terminal attached to the sealing plate, and a gas release valve is formed in the bottom of the prismatic outer body.


Patent
SANYO Electric Co. | Date: 2016-03-07

A prismatic secondary battery that includes a wound electrode body including a wound positive electrode core body exposed portion in one edge portion and a wound negative electrode core body exposed portion in the other edge portion. A width of the wound electrode body is 110 to 160 mm, a height thereof is 50 to 70 mm, and a thickness is 10 to 30 mm. A distance from an undersurface of a base portion of a positive electrode collector to a weld between a positive electrode connection portion and the positive electrode core body exposed portion is 10 to 25 mm, and a distance from an undersurface of a negative electrode base portion of a negative electrode collector to a weld between a negative electrode connection portion and the negative electrode core body exposed portion is 10 to 25

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