Abstract: A cylindrical battery according to an aspect of the present invention includes an electrode assembly including a positive electrode plate and a negative electrode plate wound together via a separator, an electrolytic solution, a bottomed cylindrical housing can, and a sealing unit fixed by crimping of an open end of the housing can via a gasket. The sealing unit includes a valve member having a circular outline, a metal plate connected to a central portion of the valve member so as to be farther inside the battery than the valve member, and an annular insulating member disposed between an outer peripheral portion of the valve member and an outer peripheral portion of the metal plate. The valve member has a sloping region in which the thickness decreases or increases continuously along the radial direction.

Abstract: A cell block including a metal case including a plurality of pipe-shaped members and a plurality of single cells housed in each of the pipe-shaped members. Each of the pipe-shaped members is joined at joining surfaces, and the pipe-shaped members are joined and integrated. A member for housing single cells is provided, and the housing member is molded with a high degree of accuracy and is capable of being manufactured at low cost and in a simple manner.

Abstract: A battery module includes: a plurality of battery cells held in a case; and a collector plate disposed on one side or the other side of the plurality of battery cells. The collector plate includes connection terminals connected to a collector plate main body so that the plurality of connection terminals are disposed to face an electrode provided in each of the battery cells. In at least one of the electrodes, the plurality of the connection terminals facing the at least one electrode include a first connection terminal welded to the electrode and a second connection terminal not welded to the electrode.

Abstract: A battery module includes a plurality of battery cells each having a safety mechanism, a cell case having a plurality of battery housing parts for housing the plurality of battery cells respectively in a predetermined arrangement, an insulating member disposed on one side of each of the battery cells, and a duct serving as a route for exhausting exhaust gas discharged from the battery cells. The battery housing parts have a plurality of openings for housing the battery cells. The insulating member has a through hole formed at a position facing an opening of the plurality of openings that houses corresponding one of the battery cells, and a lid part for closing an opening of the plurality of openings that houses no battery cell. The exhaust gas is discharged to the route of the duct through the through hole of the insulating member.

Abstract: A battery module includes: a plurality of battery cells held in a case; and a collector plate disposed on one side or the other side of the plurality of battery cells. The collector plate includes connection terminals connected to a collector plate main body so that the plurality of connection terminals are disposed to face an electrode provided in each of the battery cells. In at least one of the electrodes, the plurality of the connection terminals facing the at least one electrode include a first connection terminal welded to the electrode and a second connection terminal not welded to the electrode.

Abstract: A battery retainment block includes a plurality of block pieces each having a battery storage unit for retaining a battery. The plurality of block pieces are aligned and, among the plurality of block pieces, two block pieces that are adjacent to each other are coupled together. A gap is provided between the two block pieces that are adjacent to each other to serve as a circulation space for circulating a medium.

Abstract: A battery block comprising: a battery case that includes a plurality of metal pipe-shaped members joined or adhered to each other; a cell accommodated inside each of the plurality of metal pipe-shaped members; and an insulating layer that covers the outer wall surface or the inner wall surface of the metal pipe-shaped members of the battery case. According to the present invention, even if unnecessary contact between battery blocks occurs in a power supply unit, a short circuit or the like does not occur.

Abstract: An aspect of battery module includes a plurality of columnar batteries stored in storage unit of a high thermal conductivity. The storage unit includes base section, first frame sections, and second frame sections. The base section is a base member to which the first frame sections and the second frame sections are fixed. The first frame sections are hollow cylindrical members protruding on one main surface side of the base section. The second frame sections are hollow cylindrical members protruding on the other main surface side of the base section. The first frame sections and second frame sections are alternately arranged. A half of each battery is covered with each first frame section or each second frame section.

Abstract: Battery module includes a plurality of substantially columnar batteries, and a plurality of cases that store respective batteries and are disposed in parallel with each other. Cases are disposed so that a vent disposed in one case of two adjacent cases communicates with a vent disposed in other case. Thus, the route from another vent disposed in one case to another vent disposed in other case is formed as an airflow path passing through the vents communicating with each other between adjacent cases.

Abstract: A battery module includes: battery blocks which are connected to each other and each of which includes cells. Each of the cells has an opening through which a gas generated in the cell is released to an outside. Each of the battery blocks has a holder in which the cells are accommodated with the openings of the cells being aligned on a same side. On a side of the battery block on which the openings are aligned, a flat plate in touch with one end of the cells is disposed such that the gas passes above the flat plate. Each adjacent two of the battery blocks are disposed such that the flat plates are substantially flush with each other. The flat plate of one of the each adjacent two of the battery blocks extends above the holder of the other of the each adjacent two of the battery blocks.

Abstract: A battery retainment block includes a plurality of block pieces each having a battery storage unit for retaining a battery. The plurality of block pieces are aligned and, among the plurality of block pieces, two block pieces that are adjacent to each other are coupled together. A gap is provided between the two block pieces that are adjacent to each other to serve as a circulation space for circulating a medium.

Abstract: A battery block comprising: a battery case that includes a plurality of metal pipe-shaped members joined or adhered to each other; a cell accommodated inside each of the plurality of metal pipe-shaped members; and an insulating layer that covers the outer wall surface or the inner wall surface of the metal pipe-shaped members of the battery case. According to the present invention, even if unnecessary contact between battery blocks occurs in a power supply unit, a short circuit or the like does not occur.

Abstract: A battery module is provided in which a gap at a bonding section between a positive electrode bus bar and a negative electrode bus bar is less likely to be formed in a bonding process, and stress-induced strain is less likely to be caused at the bonding section after the positive electrode bus bar is bonded to the negative electrode bus bar. The battery module includes a plurality of cells 100 arranged with a same polarity oriented in a same direction, a positive electrode bus bar 200 by which positive electrode terminals of the cells 100 are electrically connected to each other in parallel, and a negative electrode bus bar 300 by which negative electrode terminals are electrically connected to each other in parallel.

Abstract: The present invention provides a cell block (100) including: a metal case including a plurality of pipe-shaped members; and a plurality of single cells (40) housed in each of the pipe-shaped members (30), wherein each of the pipe-shaped members (30) is joined at joining surfaces, and the pipe-shaped members (30) are joined and integrated. According to the present invention, a member for housing single cells is provided, wherein the housing member is molded with a high degree of accuracy and is capable of being manufactured at low cost and in a simple manner.

Abstract: A case of a battery module 21 includes a battery chamber 31, and an exhaust chamber 33. A member 41 having a lower melting point than a melting point of the case is provided on an inner surface of the case located in a release direction of gas.

Abstract: At a central portion of a lid of a battery, a negative terminal, which has a T-shaped section view, is provided so as to be surrounded by a gasket and pierce the lid. An insulator is provided at the inner face side of the lid. A plate-like current collector is placed in a recess of the insulator. Notches are provided at two positions of an insertion hole which is provided at one end portion side of the current collector. By inserting the negative terminal into the insertion hole and crimping an end portion of a leg portion of the negative terminal, the negative terminal is fixed to the current collector with a deforming part of the end portion eating into the notches and being locked.