A power storage module includes a cylindrical resin portion that extends in a direction in which a plurality of bipolar electrodes is stacked and that accommodates therein the plurality of the bipolar electrodes. The resin portion includes a first seal portion that has a cylindrical shape and is joined to peripheral edge portions of a plurality of electrode plate, and a second seal portion that has a cylindrical shape and is disposed outside the first seal portion in a direction that crosses the stacking direction of the bipolar electrodes. A plurality of separators is disposed such that outer peripheral ends of the separators are located between an outer peripheral end of the first seal portion and an inner peripheral end of the first seal portion.

[OBJECT]

To provide an all-solid-state battery in which the side surface of the all-solid-state battery laminate is covered with a resin layer, wherein adhesiveness between the all-solid-state battery laminate and the resin layer is improved, whereby the all-solid-state battery can be structurally stabilized.

[SOLVING MEANS]

An all-solid-state battery, including an all-solid-state battery laminate including at least one all-solid-state unit cell in which a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer are laminated in this order, and a resin layer covering a side surface of the all-solid-state battery laminate, wherein at least one surface of at least one of the positive electrode current collector layer and the negative electrode current collector layer includes a laminated part and an extending part, the laminated part is a portion which overlaps another adjacent layer, and the extending part is a portion which extends beyond the other adjacent layer, and the surface roughness of the extending part is greater than the surface roughness of the laminated part.

The invention relates to a battery cell (2), comprising a prismatically designed cell housing (3) with a cover surface (31), on which a negative terminal (11) and a positive terminal (12) are arranged, and at least one electrode coil (10) which is arranged inside the cell housing (3) and comprises a cathode (14) having cathode contact lugs (24) and an anode (16) having anode contact lugs (26). The cathode contact lugs (24) and the anode contact lugs (26) extend next to one another from the electrode coil (10) toward exactly one end face (35, 36) of the cell housing (3), the end face (35, 36) running at a right angle to the cover surface (31). The invention also relates to a battery system comprising at least one battery cell (2) according to the invention.

Disclosed is a battery module. The battery module includes: a battery cell stack in which a plurality of battery cells are stacked; a plurality of end plates at least partially surrounding the battery cell stack; and a support member coupled to the plurality of end plates and supporting the plurality of end plates.

The present invention relates to an energy storage unit (1) having a plurality of electrochemical cells (2), wherein the electrochemical cells (2) each have a first outer face (3) comprising a first electrode (5), and a second outer face (4) comprising a second electrode (6), and the electrochemical cells (2) are electrically interconnected owing to the lined-up arrangement (9) of the electrochemical cells (2) by way of the outer faces (3, 4) by means of the electrodes (5, 6). The energy storage unit (1) additionally comprises a first frame element (7) and a second frame element (8), which frame elements are directly or indirectly connected to one another, wherein the first frame element (7) is arranged at one end (10) of the lined-up arrangement (9) of the electrochemical cells (2), and the second frame element (8) is arranged at the other end (11) of the lined-up arrangement (9) of the electrochemical cells (2). The present invention also relates to a battery cell (2) for use with an energy storage unit (1) according to the invention, and also to a method for producing a battery cell (2) of this kind.

An in-vehicle battery module includes a plurality of cylindrical battery cells, a battery cell holder, a protective case, a vent cover provided such that the battery cell holder is positioned between the protective case and the vent cover, the vent cover and the battery cell holder disposed such that a vent space in which gas discharged from an end face on a second-electrode side of the cylindrical battery cell flows is provided between the vent cover and the battery cell holder, at least one first-electrode bus bar, at least one second-electrode bus bar provided in the vent space, and a support member disposed partially in the vent space and the support member being configured to support the second-electrode bus bar from the vent cover side.

The invention relates to a holding-down means (100) for fixing battery cells (2) in a battery submodule (70), comprising positioning elements for positioning the holding-down means (100) relative to the battery cells (2), and comprising guide elements for guiding cell connectors (80) which connect the battery cells (2), wherein gas-venting openings which pass through from a top side to a bottom side are provided in a central region of the holding-down means (100), and wherein the sealing elements which surround the gas-venting openings are provided on the bottom side of the holding-down means (100). The invention also relates to a battery submodule (70) which comprises a plurality of battery cells (2) and cell connectors (80) which connect the battery cells (2), and also at least one holding-down means (100) for fixing the battery cells (2).

A battery assembly has a plurality of laterally adjacent frames, respective battery cells fixed in the frames, and respective pole extenders projecting upward from the cells and each having an outer end that is horizontally bent to form a downwardly directed lower extender face. A conductive connector has for each of the cells a respective connector arm and is insertable into the frames into a position with the arms under the lower faces of the respective outer ends. A wedge bears upward on the connector arms, downward on the frame or cells, and presses the arms upward against the lower faces of the outer ends of the respective extenders. A wedge formation on the frame is underneath and bears upward on the wedge.

A battery assembly has a plurality of laterally adjacent frames, respective battery cells fixed in the frames, and respective pole extenders projecting upward from the cells and each having an outer end that is horizontally bent to form a downwardly directed lower extender face. A conductive connector has for each of the cells a respective connector arm and is insertable into the frames into a position with the arms under the lower faces of the respective outer ends. A wedge bears upward on the connector arms, downward on the frame or cells, and presses the arms upward against the lower faces of the outer ends of the respective extenders. A wedge formation on the frame is underneath and bears upward on the wedge.

Provided is an energy storage apparatus includes: at least one energy storage device; and a spacer disposed adjacently to the energy storage device, the spacer being configured to form a ventilation passage which allows cooling air to pass therethrough between the spacer and the energy storage device, wherein the spacer has an opposedly facing portion which opposedly faces a spacer disposed adjacently to the spacer with the energy storage device sandwiched therebetween at a position which faces the ventilation passage and is disposed adjacently to the energy storage device in a flow direction of the cooling air in the ventilation passage, one opposedly facing portion of a pair of opposedly facing portions which opposedly faces each other of the spacers disposed on both sides of the energy storage device has an extending portion extending toward the other opposedly facing portion of the pair of opposedly facing portions, and the extending portion is brought into contact with the other opposedly facing portion.