Toyota Jidosha Kabushiki Kaisha

Toyoda Gosei Co., Ltd.

Primearth Ev Energy Co., Ltd.

Kokoku Intech Co., Ltd.

Yodogawa Hu-tech Co., Ltd.

Takashi Harayama

Kazuyuki Kusama

Hiroyuki Nakayama

Satoshi Suzuki

Koji Takahata

Tomohiro Matsuura

Toshiya Okada

Hikohito Yamazaki

Takahiko Hasegawa

Shigeaki Murata

Tomio Yamanaka

Yasushi Hirakawa

Ichiro Murata

Yasunori Uchida

Yoichi Naruse

Yoshiaki Kameda

Tomohide Sumi

Hiroshi Onizuka

Yoshio Matsuyama

Masato Komatsuki

Youichi Naruse

Tadanobu Ota

Junta Takasu

Kaoru Yugahara

Katsumi Ogawa

Shinya Muroi

Kaoru Kajita

Ryo Hanasaki

Isao Awai

Syun Yoshida

Koji Terashima

Ayano Asai

Jumpei Iijima

Hiroyuki Torii

Takamasa Kajiwara

A fuel cell vehicle includes: a fuel cell; a storage portion to store produced water that is produced as a result of power generation by the fuel cell; a drainage valve for switching between a storage state and a drainage state of discharging the produced water from the storage portion to the outside of the fuel cell vehicle; a road information acquisition portion configured to acquire road information on roads on which the fuel cell vehicle travels; and a controller configured to drainage valve control operation. The controller sets a road region meeting a first condition defined in advance regarding road information and that permits the drainage state as a first road region where the drainage state is permitted, and the controller performs drainage if a drainage implementation condition defined in advance, including traveling of the fuel cell vehicle in the first road region, is fulfilled.

Fuel cell vehicle

The nonaqueous electrolyte secondary batteryherein proposed is characterized by being manufactured by performing an initial charging and discharging treatment on an assembly, in which are accommodated in a battery casean electrode body, and a nonaqueous electrolyte containing a compound expressed by a general formula: A[PX(CO)], the content of the compound being 1.1 mass % to 1.2 mass % when the total mass of the nonaqueous electrolyte is assumed to be 100 mass %.

Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery includes: an electrode assembly; a nonaqueous electrolyte; and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode active material layer. The negative electrode includes a negative electrode active material layer. The separator is interposed between the positive electrode and the negative electrode. The battery case accommodates the electrode assembly and the nonaqueous electrolyte. Ends of contact faces of the negative electrode active material layer and the separator are at least partially bonded to each other.

Nonaqueous electrolyte secondary battery and manufacturing method therefor

Provided is a nonaqueous electrolyte secondary battery including a flat wound electrode body. The flat wound electrode body has a flat portion, a first R portion, and a second R portion. The second R portion is provided on a bottom side of a battery case when a nonaqueous electrolytic solution is put into the battery case at least in a battery construction step. Opposite end portions of the second R portion in the winding axial direction are squashed in a thickness direction of the electrode body to a larger extent than opposite end portions of the first R portion in the winding axial direction.

A battery is provided with a lid member that closes a case, a collector terminal member having an insert-through part, an insulator that electrically insulates the lid member and the collector terminal member, and a gasket that provides a seal between the lid member and the collector terminal member. The lid member has a protrusion protruding downward in the vertical direction from the bottom. A gasket is in the same position as the protruding section in an inside-outside direction, which is perpendicular to the vertical direction, and has a sealing part pressed by the protruding section. At least one gap exists in the vicinity of the seal section in a different position to the seal section in the inside-outside direction, and at least portions of the gaps are enclosed by the gasket and the collector terminal member.

Battery

A lithium ion battery has a flat wound electrode assembly, a nonaqueous electrolyte, and a battery case. The nonaqueous electrolyte contains an electrically insulating inorganic aggregate and is formed of an impregnating electrolyte impregnated into the flat wound electrode assembly and a surplus electrolyte not impregnated into the flat wound electrode assembly. Letting the flat wound electrode assembly be divided into a planar region where the electrode surfaces are planar surfaces and a lower wound curved region which is positioned vertically downward from the planar region and where the electrode surfaces are curved, a boundary plane that includes the boundary between the planar region and the lower wound curved region, the inorganic aggregate amount Mincluded in a space which is below the boundary plane and the inorganic aggregate amount Mincluded in the impregnating electrolyte within the flat wound electrode assembly satisfy the relationship M&#x3e;M.

A battery pack has a plurality of series-connected batteries each having an electrode body, a battery case, a positive extending member, a positive external terminal mechanically joined and electrically connected to a positive external extending part of the positive extending member, by caulking deformation thereof, a negative extending member, and a negative external terminal mechanically joined and electrically connected to a negative external extending part of the negative extending member, by caulking deformation thereof. Among the positive and negative external extending parts, the positive and negative external terminals, the metal making up the positive external extending part has the lowest tensile strength. The battery pack includes bus bars; positive fastening members for fastening the positive external terminals to the bus bars; and negative fastening members for fastening the negative external terminals to the bus bars. The negative external terminal is thinner than the positive external terminal.

Battery pack

A sealed battery includes an electrode assembly; a case having an opening portion and accommodating the electrode assembly; a lid closing the opening portion and having a through-hole; a collector terminal including an inner terminal segment and a projection; and an insulating seal in contact with a bottom surface of the lid, the bottom surface being an inner side of the lid in a thickness direction of the lid, the inner side of the lid facing an inside of the case when the lid closes the opening portion, and the insulating seal providing sealing between the lid and the collector terminal. The lid has a protrusion protruding from the bottom surface of the lid. The protrusion surrounds the through-hole. A part of the protrusion protrudes into the through-hole. The through-hole has a smallest opening diameter at a position at which the part of the protrusion protrudes into the through-hole.

Sealed battery

A nonaqueous electrolyte battery provided by the present invention includes: an electrode body () having a flat shape and including a positive electrode and a negative electrode (); a square-shaped battery case () configured to accommodate therein the electrode body () and a nonaqueous electrolyte; and a negative electrode collector terminal () placed in the battery case () and connected to the negative electrode () of the electrode body (). The negative electrode collector terminal () is mainly made of copper or copper alloy. An insulator film () configured to insulate the battery case () from the electrode body () is placed between an inner wall () of the battery case () and the electrode body (). The insulator film () is joined to the inner wall () of the battery case (), and the insulator film () is placed so as not to make contact with the negative electrode collector terminal ().

Nonaqueous electrolyte battery and manufacturing method thereof

A battery includes: a battery case having a case body member and a case lid member having a through hole; a rivet that engages with the through hole; and a gasket. The through hole is hermetically sealed with the gasket interposed between the circumferential outer surface of the case lid member and an outer flange of the rivet. The case lid member is configured such that, in a state wherein a peripheral edge portion connected to an opening end portion of the case body member, the circumferential outer surface is positioned in the axial outward direction such that the circumferential outer surface faces further towards the outer side along the axis line of the through hole than the peripheral edge portion and the opening end portion.

A sealed batteryis provided, which has a seambetween a case main bodyand a lidon an outer surfaceA side of the lid, and in which this seamis laser welded. A terminalconnected to an electrode assembly in the batteryis led to the outside from a through hole in the lidand is separated from the lid outer surfaceA by an outside resin member. The outside resin memberis constituted of a resin matrix, which is formed of a nonaromatic resin composition, and inorganic fiberspresent dispersed in the resin matrix. At least 50% by mass of the inorganic fibersin the outside resin memberis disposed such that the fiber axial direction of the inorganic fibersis parallel to the outer surface of the lid

A sealed battery includes a filling hole, and a gasket and a blind rivet that seal the filling hole. A tapered surface that is inclined toward an inside of a battery case is formed around the filling hole of the battery case. The filling hole is sealed by the gasket and the blind rivet by the blind rivet plastic deforming.

Sealing arrangement of a battery filling port using a rivet

A battery includes a bottomed case of box shape housing a power-generating element, a lid component for the case, a terminal electrode provided outside the case and extending in the direction of the thickness of the lid component, a take-out electrode passing through the lid component, provided for taking out an electric power of the power-generating element to the outside of the case, and disposed at a position different from that of the terminal electrode within a plane including the lid component, and a connecting member connecting the terminal electrode and the take-out electrode and including a thinner portion allowing bending of the connecting member in response to an external force applied to the terminal electrode in the direction of the thickness of the lid component.

Battery, assembled battery, and mounting device

Provided is a technique for suppressing welding faults caused in sealing a case of a sealed battery by laser welding. A step for manufacturing a sealed battery having a case sealed by a sealing plug and a sealing plate, which includes a sealing step for fitting the sealing plug into a pouring hole formed in a recess of a lid portion and inserting the sealing plate into the recess, and a welding step for joining the sealing plate to the recess by laser welding. In the sealing step, a heat-insulating member is provided in a minute space defined by the recess, the sealing plug and the sealing plate so as to block at least a part of the boundary portion between the sealing plate and the recess. In the welding step, welding is completed at a position where the heat-insulating member is present in the boundary portion.

Sealed battery and method for manufacturing the same

A hermetically sealed battery is provided with a sealing member for air-tightly sealing the through-hole of a battery case from the outside. The sealing member has: a covering member secured to the battery case from the outside; an insertion portion inserted into the through-hole; an annular pressure contact portion in air-tight pressure contact with the hole surrounding portion of the battery case; and a connecting portion disposed between the insertion portion and the annular pressure contact portion so as to be integral with the insertion portion and the annular pressure contact portion. The connecting portion is provided with an annular groove surrounding the insertion portion.

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Toyota, Japan

Takashi Harayama