Zhu, Puxing

A battery and a method for manufacturing the same are provided. The battery includes battery cell(s) (1) each provided with a first pole and a second pole, busbars including first busbar(s) (2) and second busbar(s) (3), and a case (4) including a housing (41) and a first case cover (42). The housing includes a body (411) and a partition plate (412) both defining a first cavity arranging with battery cell(s). One end of the battery cell abuts against the partition plate. The first case cover is provided at an end of the housing. Support portion(s) (421) are provided on a side of the first case cover. The first busbar is connected to the first pole. The support portion abuts against the first busbar. The partition plate is provided with pole hole(s) each enabling passage of the second pole to connect the second busbar. The second busbar is on a side of the partition plate away from the battery cell.

A method, device, system, and storage medium for insulation impedance detection are provided. The method includes: determining a preliminary inspection insulation impedance of each of the power supply units; determining a preliminary inspection insulation impedance that meets a preset condition as a target insulation impedance based on the preliminary inspection insulation impedance of each of the power supply units; determining an insulation inspection compensation coefficient based on the target insulation impedance and initial impedances of the plurality of power supply units; and determining a secondary inspection insulation impedance of a target power supply unit based on the insulation inspection compensation coefficient.

A core pack assembly, a battery, a battery pack, and a vehicle are provided. The core pack assembly includes a core pack and one or more wicking components. The core pack is provided with tabs, and each wicking component is arranged on an outer surface of the core pack and located on a same side of the core pack as the tabs, and is configured to absorb electrolyte outside the core pack and transfer the electrolyte into the core pack.

The present application provides a cover plate assembly, a battery cell, and a battery. The cover plate assembly includes a cover plate and a pole. The cover plate is provided with a mounting hole, and the cover plate includes a width dimension W and a length dimension L. The pole includes a main body, an end of the main body is provided with a tab connecting groove, and the main body is provided penetrating through the mounting hole. The main body includes a width dimension b' along a direction of the width dimension W, and the main body includes a length dimension a' along a direction of the length dimension L. W - 6 mm ≤ b' ≤ W - 8 mm, and 0.4 ≤ b'/ a' ≤ 0.9.

The present application provides a single battery and a battery pack. The single battery includes a cell pack, a casing, an electrode, and a first thermal conductive adhesive. Specifically, the casing includes a shell and a cover plate, the cell pack is accommodated within the shell, and the cover plate is connected to and covers the shell to seal it. The electrode includes a pole and a lead that are electrically connected to each other, the pole is disposed on the cover plate, and an end of the lead away from the pole extends in a length direction of the cell pack and is electrically connected to the cell pack. The first thermal conductive adhesive is disposed between the lead and the inner surface of the shell.

The present application provides a pin component and a battery cell. The pin component includes a tab connection section, a transition section, and a pole connection section. The transition section is connected to the tab connection section in a bending manner, and a first included angle is formed between the transition section and the tab connection section. The pole connection section and the transition section are connected in a bending manner, and a part of the pole connection section overlaps with the transition section.

The present application provides a positive electrode material, a method for preparing the same, a positive electrode plate, and a battery. The positive electrode material includes a positive electrode active material, which includes a ternary single-crystal material and lithium manganese iron phosphate. The crystal of the ternary single-crystal material has a lattice spacing satisfying the equation of a₁=b₁, where the lattice spacing a₁ ranges from 2.7 Å to 3.0 Å, and the lattice spacing c₁ ranges from 13.5 Å to 15.0 Å. The crystal of lithium manganese iron phosphate has a lattice spacing satisfying the equation of a₂=b₂, where the lattice spacing a₂ ranges from 6.1 Å to 6.4 Å, and the lattice spacing c₂ ranges from 4.6 Å to 5.0 Å.

The present application provides a pole, a terminal assembly, and a battery cell. The pole includes: a base (1) including a first surface (11); and a cylindrical body (2) disposed on the first surface (11). The cylindrical body (2) includes a second surface (23) away from the base (1), the second surface (23) is provided with a heat conduction groove (3), and the heat conduction groove (3) is filled with a heat conduction material (4).

The present disclosure provides an energy storage appliance and a power supply system. The energy storage appliance includes an appliance body (10) and an energy storage battery (20). The appliance body (10) has an energy storage chamber (110). An outer surface of the appliance body (10) is formed with a first junction (120) configured to connect a mains supply grid (50) and a second junction (130) configured to connect a load circuit (60). The energy storage battery (20) is installed in the energy storage chamber (110). An input terminal of the energy storage battery (20) is electrically connected to the first junction (120) and configured to charge the energy storage battery (20) through the mains supply grid (50). An output terminal of the energy storage battery (20) is electrically connected to the appliance body (10) and the second junction (130) and configured to supply power to the appliance body (10) and the load circuit (60).

The present application provides a battery thermal runaway warning method and apparatus, an electronic device and a storage medium. With the method, electrical performance data sequences of a battery to be detected are obtained, filtering and detection processing is performed on the electrical performance data sequences to obtain filtered electrical performance data, it is determined whether the battery meets a preset alarm condition based on the filtered electrical performance data, and a warning signal is output when the battery meets the preset alarm condition, thereby improving the accuracy and effectiveness of the warning of thermal runaway of the battery.