The present invention provides a lithium-ion battery, including: a housing and a separator located inside the housing, where the separator separates internal space of the housing into a plurality of accommodation cavities, battery core sets are disposed inside the accommodation cavities, the battery core sets each include at least one pole shank, and the battery core sets are connected in series; and at least one separator is provided with a liquid injection hole, and the liquid injection hole is used to connect two adjacent accommodation cavities on two sides of the separator; and a block mechanism, where the block mechanism is located inside the housing, the block mechanism enables the liquid injection hole to be in a predetermined state, and the predetermined state includes an open state and a closed state. The battery provided in the present invention ensures isolation and safety of each battery core set while facilitating liquid injection.

A battery includes a case having a feedthrough port, a feedthrough assembly disposed in the feedthrough port, and a cell stack disposed within the case. The feedthrough port includes an inner conductor and an insulator core separating the inner conductor from the case. The cell stack includes an anode, a cathode, and a separator insulating the anode from the cathode, wherein the anode and cathode are offset from one another. An insulating boot surrounding the cell stack insulates the cell stack from the case. The insulating boot has an opening configured to receive therein the feedthrough assembly, which may include overmolded insulation. The interior surfaces and interior walls of the battery case may be thermal spray-coated with a dielectric material to prevent lithium dendrite formation between cathode and anode surfaces.

A battery includes a case having a feedthrough port, a feedthrough assembly disposed in the feedthrough port, and a cell stack disposed within the case. The feedthrough port includes an inner conductor and an insulator core separating the inner conductor from the case. The cell stack includes an anode, a cathode, and a separator insulating the anode from the cathode, wherein the anode and cathode are offset from one another. An insulating boot surrounding the cell stack insulates the cell stack from the case. The insulating boot has an opening configured to receive therein the feedthrough assembly, which may include overmolded insulation. The interior surfaces and interior walls of the battery case may be thermal spray-coated with a dielectric material to prevent lithium dendrite formation between cathode and anode surfaces.

The present invention provides a battery package used in an assembled battery, which can miniaturize the assembled battery and can impart sufficient durability; an assembled battery which can be miniaturized and have sufficient durability by provision with the relevant battery package; and a battery device provided with the relevant assembled battery.

A battery pack, including a housing, a circuit board, and a plurality of electrode assemblies. The housing includes a first surface and a second surface opposite to each other. The first surface is provided with a plurality of first slots. The battery pack further includes a plurality of first caps, and the plurality of first caps respectively cover the plurality of first slots to form a plurality of mutually separated accommodation spaces. The electrode assemblies each includes an electrode plate assembly, a first electrode tab, and a second electrode tab. The electrode plate assembly is accommodated in the accommodating space. The first tab and the second tab extend out of the accommodating space. At least one first electrode tab and at least one second electrode tab are electrically connected to the circuit board. The structure and the manufacturing process of the battery pack can be simplified.

A battery pack, including a housing, a circuit board, and a plurality of electrode assemblies. The housing includes a first surface and a second surface opposite to each other. The first surface is provided with a plurality of first slots. The battery pack further includes a plurality of first caps, and the plurality of first caps respectively cover the plurality of first slots to form a plurality of mutually separated accommodation spaces. The electrode assemblies each includes an electrode plate assembly, a first electrode tab, and a second electrode tab. The electrode plate assembly is accommodated in the accommodating space. The first tab and the second tab extend out of the accommodating space. At least one first electrode tab and at least one second electrode tab are electrically connected to the circuit board. The structure and the manufacturing process of the battery pack can be simplified.

The invention relates to a mixing element designed to be installed into a housing of a liquid electrolyte-operated electrochemical accumulator in order to mix the electrolyte as a result of forces and/or motion exerted on the accumulator during operation, wherein the mixing element is designed as a hollow body provided with at least one respective opening at opposite end regions such that a channel is formed in the hollow body which leads into the at least one respective opening in the opposite end regions and is circumferentially delimited there by the material of the mixing element, wherein the mixing element comprises one or more securing and/or spacer ribs protruding from the external side of the mixing element and designed to contact parts of the accumulator housing in order to fix the mixing element in the accumulator and/or set a specific position of the mixing element relative to the housing parts. The invention further relates to a range of mixing elements as well as an accumulator having at least one mixing element.

The disclosed technology relates to battery packs having battery cells of different designs or capacities with an imbalance in the charging and/or discharging current supplied to and provided by each jelly roll due to differences in capacity specific impedance between the battery cells of a battery pack. The battery pack includes at least a first and second battery cell connected in parallel, with a thickness of an active layer and/or current collector of a battery cell having an altered thickness to reduce an impedance of the battery cell.

A battery includes a case having a feedthrough port, a feedthrough assembly disposed in the feedthrough port, and a cell stack disposed within the case. The feedthrough port includes an inner conductor and an insulator core separating the inner conductor from the case. The cell stack includes an anode, a cathode, and a separator insulating the anode from the cathode, wherein the anode and cathode are offset from one another. An insulating boot surrounding the cell stack insulates the cell stack from the case. The insulating boot has an opening configured to receive therein the feedthrough assembly, which may include overmolded insulation. The interior surfaces and interior walls of the battery case may be thermal spray-coated with a dielectric material to prevent lithium dendrite formation between cathode and anode surfaces.

The aim of the disclosure is to improve a battery box to the extent that, when manufactured and used in a simple manner, the performance of the battery is ensured also over a longer period of time and responses can be made to modifications to the box, to the pressures prevailing in the box, etc. This aim is achieved, according to the disclosure, by a battery box, for a block battery, for receiving at least one battery cell having an electrode plate, said battery box comprising a main body, which is made of plastics material and has two end walls, which extend substantially in parallel with the electrode plates, and two side walls, which extend substantially at a right angle to said end walls, the end walls and side walls each having a top edge and a bottom edge and being interconnected so as to form a corner edge and the side walls having on the outer faces thereof a fastening edge extending at an angle to the corner edge.