H01M2/00

Stacked-electrode battery cell

Disclosed are a stacked-electrode battery cell that has offset electrode-to-terminal bonds, and a method for manufacturing such a cell. The stacked-electrode battery cell can comprise an external connection terminal that includes a flat tab, and a plurality of flat electrodes stacked along a first coordinate axis and collectively forming at least a portion of an anode or a cathode of the battery cell. A first electrode of the plurality of flat electrodes is bonded to a first bond region of the tab and a second electrode of the plurality of flat electrodes is bonded to a second bond region of the tab, where the first bond region and the second bond region are non-overlapping along at least one coordinate axis perpendicular to the first coordinate axis.

Diatomaceous energy storage devices

A printed energy storage device includes a first electrode, a second electrode, and a separator between the first and the second electrode. At least one of the first electrode, the second electrode, and the separator includes frustules, for example of diatoms. The frustules may have a uniform or substantially uniform property or attribute such as shape, dimension, and/or porosity. A property or attribute of the frustules can also be modified by applying or forming a surface modifying structure and/or material to a surface of the frustules. A membrane for an energy storage device includes frustules. An ink for a printed film includes frustules.

Containment system and method for high energy density devices
10217979 · 2019-02-26 · ·

A containment system including a primary containment layer at least partially defining a primary containment volume, the primary containment layer including a thermal material, a secondary containment layer at least partially defining a secondary containment volume, the secondary containment layer including a gas capturing material, wherein the primary containment layer is positioned in the secondary containment volume, and a tertiary containment layer at least partially defining a tertiary containment volume, the tertiary containment layer including a ballistic material, wherein the secondary containment layer is positioned in the tertiary containment volume.

Hollow packaging for cable-type secondary battery, and cable-type secondary battery comprising same

The present invention relates to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, and more specifically, to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, wherein the hollow packaging for a cable-type secondary battery comprises a packaging sheet including a sheet-type thin metal layer provided with a corrugated pattern on the surface, a first polymer resin layer formed on one surface of the thin metal layer, and a mechanical support layer formed on the other surface of the thin metal layer, wherein the packaging sheet forms a hollow space by bending so that the first polymer resin layer faces inward.

Inductively heated microchannel reactor
10207241 · 2019-02-19 · ·

The current document is directed to an efficient multi-channel chemical reactor having a multichannel core containing a plurality of parallel channels, with conductive walls, having a varying composition along their lengths. The channels are heated by a frequency-addressing different regions within the reactor with an inductive coil, driven by an agile frequency or spread spectrum emission controller.

Battery holder, battery receiving case, battery pack, electricity accumulation system, electronic instrument, electric vehicle, and electric power system
10195957 · 2019-02-05 · ·

There is provided a battery holder including: a plurality of battery cell receiving sections for receiving a battery cell. A deformation section elastically deformed depending on transmission of external impact, and a space section for allowing the deformation section to be elastically deformed are formed between a peripheral surface of one battery cell receiving section and a peripheral surface of another battery cell receiving section.

Top cover structure of power battery and power battery

The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment with a solid core structure and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the joint part, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.

Biasing features for a battery module

The present disclosure relates to a battery module having a housing and a stack of battery cells disposed in a receptacle area of the housing, where each battery cell has a top having a battery cell terminal and a bottom, where the top of the battery cells face outwardly away from the receptacle area. The battery module includes an integrated sensing and bus bar subassembly positioned against the stack of battery cells and has a carrier, a bus bar integrated onto the carrier, and a biasing member integrated onto the carrier. The bus bar electrically couples battery cells in an electrical arrangement, and the biasing member is between the top of each battery cell and the carrier, where the biasing member has a first material, more compliant than a second material of the carrier, and the biasing member biases the stack of battery cells inwardly toward the housing.

Secondary battery

The invention provides a secondary battery which comprises a cap plate and at least one cell. The secondary battery further comprises connecting pieces, each connecting piece is parallel to the cap plate and positioned at an inside of the cap plate in a thickness direction of the cap plate, a longitudinal direction of each connecting piece is parallel to a length direction of the cap plate, a transverse direction of each connecting piece is parallel to a width direction of the cap plate. Each connecting piece has: a tab welding portion for being welded to the corresponding tab of each cell; and an electrode terminal welding portion connected to the tab welding portion along the longitudinal direction of each connecting piece for being welded to the corresponding electrode terminal of the cap plate so as to electrically connect the corresponding electrode terminal and the corresponding tab of each cell.

Electrode assembly, lithium battery including the same, and method of manufacturing the electrode assembly

An electrode assembly includes a first electrode at an upper part, a second electrode at a lower part, and an electrolyte membrane between the first electrode and the second electrode. Each of the first electrode and the second electrode includes an electrode active material layer, a tab portion, and a non-coated portion, the non-coated portion being located at at least one lateral side of the first electrode or the second electrode, and the non-coated portion of at least one of the first electrode and the second electrode includes at least one groove that is parallel to a thickness direction of the first electrode or the second electrode.