Absstract of: US2023085886A1

Disclosed is an article adapted to receive multiple battery cells, such as a battery module, which provides thermal insulation between adjacent battery cells using thermally insulating layers comprising a ceramifiable elastomeric silicone material using calcium silicate fillers such as wollastonite. There is also provided, the use of said ceramifiable elastomeric silicone material as a means of delaying and/or preventing thermal runaway in such an article. Typically, the battery cells for which this article is designed are lithium-ion battery cells.

Absstract of: US2023085811A1

A non-aqueous electrolyte solution for a lithium secondary battery, and a lithium secondary battery including the same are disclosed herein. In some embodiments, the non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent, and a compound represented by the following Formula 1, and has an excellent effect of scavenging decomposition products generated from the lithium salt, and thus, may improve overall performance of the battery:wherein in Formula 1,A is a C1 to C5 alkyl group.

Absstract of: US2023085771A1

An electrode, a lithium battery including the same, and a method of preparing the electrode are provided. The electrode includes an electrode active material layer including an electrode active material and a binder; and an electrode current collector at a portion of the electrode active material layer and at one side of the electrode active material layer, or at a portion of the electrode active material layer between opposing sides of the electrode active material layer, wherein the electrode active material layer includes a plurality of through-holes.

Absstract of: US2023085778A1

Electrolytes are described that involve lithium salt blends and compatible nonaqueous solvents that provide to high rate performance, charging and discharging, of lithium ion cells using silicon-based active materials, such as silicon suboxide composites, for example, silicon oxide/silicon/carbon composites. The lithium salts generally were a blend of LiPF6, and LiFSI or LiTFSI. The solvents generally comprised fluoroethylene carbonate and dimethyl carbonate with optional cosolvents and/or other additives.

Absstract of: US2023093740A1

Provided is a lithium secondary battery including a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a separator interposed between a positive electrode and the negative electrode, and an electrolyte solution. The negative electrode active material includes a silicon-based oxide; and the electrolyte solution includes a lithium salt, a fluorine-substituted cyclic carbonate compound, a non-aqueous organic solvent, and a difluorophosphite compound.

Absstract of: US2023093445A1

Disclosed is a jig for a battery charging and discharging test, which includes a first frame and a second frame which are disposed in parallel to each other so as to be spaced apart from each other; two mounting rails installed to protrude forward, configured to connect the first and second frames, and having slit grooves which are open in directions facing each other and each have an open side, such that the battery pack is mounted on the mounting rails through a rail-type structure; and an anode unit and a cathode unit which are arranged on either side of the mounting rails, and brought into contact with a first terminal and a second terminal of the battery pack coupled to the mounting rails, respectively. The jig can fix a battery at various angles to flexibly cope with various test environments, in order to perform a battery charging and discharging test.

Absstract of: US2023093458A1

A secondary battery pack comprises a battery and a protection circuit module (PCM), a pair of electrodes of the battery being connected to a protection circuit board (PCB) forming part of the PCM such that the electrode connections are located on a face of the PCB other than a major face that receives PCM components thereon. In some embodiments, the PCM components are mounted on one of a pair of major faces of the PCB, the electrode connections being located on the opposite one of the major faces. In other embodiments, the electrode connections are located on a peripheral edge face that extends transversely between the pair of major outer faces of the PCB. The spatial arrangement of the electrode connections and the PCM components on the PCB is such that substantially the entirety of one major outer face of the PCB is available for the placement of PCM components.

Absstract of: US2023093420A1

A warning method for battery thermal runaway includes: acquiring current temperature data of each temperature sensor arranged in a battery pack, current voltage data of each voltage sensor arranged in the battery pack, and current sensor disconnection data of each temperature sensor; calculating a number of occurrences of a primary feature at a current moment according to the current temperature data; calculating a number of occurrences of a secondary feature at the current moment according to the current voltage data and the current sensor disconnection data in a case that the number of occurrences of the primary feature is greater than 0; calculating a sum of the number of occurrences of the primary feature and the number of occurrences of the secondary feature at the current moment; and sending a warning for battery thermal runaway when the sum is greater than a preset feature number threshold.

Absstract of: US2023092576A1

A method for manufacturing predominantly amorphous silicon-containing particles includes a chemical compound of formula: Si(1−x)Cx, where 0.005≤x<0.05. The particles, when subjected to XRD analysis applying unmonochromated CuKα radiation, exhibit one peak at around 28° and one peak at around 52°. Both peaks have a Full Width at Half Maximum of at least 5° when using Gaussian peak fitting. The method includes forming a homogeneous gas mixture of a first precursor gas of a silicon containing compound and at least one second precursor gas of a substitution element M containing compound, injecting the homogeneous gas mixture of the first and second precursor gases into a reactor space where the precursor gases are heated to a temperature in the range of from 700 to 900° C. so that the precursor gases react and form particles, and collecting and cooling the particles to a temperature in the range of from ambient temperature up to about 350° C. The relative amounts of the first and the second precursor gases are adapted such that the formed particles obtain an atomic ratio C: Si in the range of [0.005, 0.05).

Absstract of: US2023091618A1

The present disclosure provides a fast charge long lifetime secondary battery, a battery module, a battery pack, and a power consumption device. Particularly, the present disclosure provides a secondary battery, comprising an electrode assembly and an electrolytic solution, the electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separator, the positive electrode plate comprises a positive electrode tab, and the negative electrode plate comprises a negative electrode tab, wherein the positive electrode tab has the following temperature rise coefficient:α=C1⁢0⁢S⁢1where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.

Absstract of: US2023091591A1

A working machine includes an auxiliary system carried by the working machine, one or more batteries and an onboard thermal transfer system. The one or more batteries power an electrical system of the working machine. The onboard thermal transfer system utilizes a coolant configured to remove at least a portion of heat generated by the one or more batteries during charging or discharging of the one or more batteries and using the coolant heated by the thermal transfer system to heat the auxiliary system.

Absstract of: US2023091279A1

The battery unit includes a storage configured to store (A1) and (A2) below, and a battery state estimator.(A1) : a table map OCV vs. SOC characteristics.(A2) : HF vs. SOC initial characteristics.The battery state estimator estimates, based on (A1), a start SOC corresponding to a detected OCV at a start of charge; measures HF vs. SOC present characteristics and detects a peak of differential characteristics of the measured HF vs. SOC present characteristics during the charge; determines a SOC at the detected peak as a SOC(HF) based on (A2); calculates a charge capacity from the start of the charge to detection of SOC the peak; calculates a SOC(OCV) based on the calculated charge capacity and the start SOC; and in a case where the SOC(OCV) deviates with respect to the SOC(HF) by an amount of deviation equal to or greater than a predetermined value, corrects (A1).

Absstract of: US2023093274A1

An apparatus including a control unit operably coupled to a voltage measuring unit, a temperature measuring unit and a discharging switch. The control unit measures a cell voltage and a cell temperature by using the voltage measuring unit and the temperature measuring unit, turns on the discharging switch to forcibly discharge the secondary battery through a load resistor when it is determined that a state where the cell voltage and the cell temperature are respectively equal to or greater than a critical voltage and a critical temperature according to a preset swelling management condition continues over a reference time, and turns off the discharging switch when a cell voltage or a cell temperature measured during the forced discharge falls below a preset safe voltage or a preset safe temperature according to the swelling management condition.

Absstract of: US2023093233A1

A capacitor assisted battery module includes a first diode including an anode and a cathode. A second diode includes an anode and a cathode. The anode of the first diode is connected to the cathode of the second diode at a first node. A first capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, where N is an integer greater than zero. The positive terminal of the first CAB block is connected to the cathode of the first diode. A second capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, wherein the negative terminal of the second CAB block is connected to the anode of the second diode. The negative terminal of the first CAB block and the positive terminal of the second CAB block are connected to a second node.

Absstract of: US2023093081A1

A positive electrode including positive electrode active material particles, a polymeric binder, a polymeric dispersant, and a combination of electrically conductive carbon additive types. The combination of electrically conductive carbon additive types includes carbon particles, graphene sheet stacks, and carbon nanotubes.

Absstract of: US2023092951A1

Provided is a negative electrode active material which includes: a silicon-based core; and an outer coating layer formed on the silicon-based core and including polyimide, wherein the polyimide comprises a fluorine-containing imide unit. The outer coating layer may be included in an amount of more than 0 wt % and 4.5 wt % or less in the negative electrode active material.

Absstract of: US2023092959A1

An electrically conductive hybrid membrane, including a solid membrane substrate including a curable material; and electrically conductive particle disposed on the solid membrane substrate, wherein the solid membrane substrate has an elastic modulus of about 10 MPa to about 1000 MPa, and the electrically conductive particle is exposed on both sides of the solid membrane substrate.

Absstract of: US2023092773A1

Provided is a lithium ion battery module that has high safety and that even when runaway occurs, makes it difficult for this runaway to spread to other cells. The lithium ion battery module includes a cell unit including a plurality of cells provided with a rupture valve and a spacer including a recess, wherein the cell unit is covered by the spacer such that the rupture valve and the recess are arranged opposite each other, the recess has a depth of more than 0.5 mm, the spacer contains a resin, and a wall section formed of the spacer is provided between adjacent cells.

Absstract of: US2023092737A1

This disclosure relates to battery cells, and more particularly, electrolyte formulations that reduce thermal runaway in lithium ion battery cells.

Absstract of: US2023090154A1

A present invention is a power supply device, comprising a battery unit, a heater configured to generate heat on the basis of power of the battery unit, and a driving unit configured to drive the heater with a driving force according to a temperature of the battery unit.

Absstract of: US2023087062A1

A button-type secondary battery includes an electrode assembly including a first separator, a negative electrode, a second separator, and a positive electrode that are sequentially stacked and wound, wherein ends of the first separator and the second separator are disposed closer to a center of the wound electrode assembly than ends of the positive electrode and the negative electrode; an electrolyte; and a can in which the electrode assembly and the electrolyte are accommodated. In the electrode assembly, an expansion member is attached to at least one central end of the first separator or the second separator, and the expansion member is expanded by absorbing the electrolyte.

Absstract of: US2023086550A1

The present disclosure includes an inverter connected to a power supply unit via a positive electrode side electrical path and a negative electrode side electrical path and including switching elements, a rotary electric machine including windings connected to each other at a neutral point and inputting and outputting power from and to the power supply unit via the inverter, a connection path electrically connecting an intermediate point between the storage batteries of the power supply unit to the neutral point of the windings, and a device including a first terminal and a second terminal enabling energization between the power supply unit and the device. The first terminal is connected to the connection path, and the second terminal is connected to at least one of the positive electrode side electrical path and the negative electrode side electrical path.

Absstract of: US2023086348A1

A system and method are disclosed that can improve the capacity, energy and cycle life of an electrochemical cell by using a structure comprising a piezoelectric material. In one form, the electrochemical cell comprises: an anode having a solid-electrolyte interphase layer formed thereon; a cathode; an electrolyte, wherein at least a portion of the electrolyte is located between the anode and cathode; and a structure comprising a piezoelectric material, the structure contacting at least a portion of the solid-electrolyte interphase layer of the anode. In another form, the electrochemical cell comprises: an anode having a solid-electrolyte interphase layer formed thereon; a cathode; an electrolyte, wherein at least a portion of the electrolyte is located between the anode and cathode; and a structure comprising units distributed in a matrix, the units comprising a piezoelectric material, the structure contacting at least a portion of the solid-electrolyte interphase layer of the anode.

Absstract of: US2023085882A1

A system includes a first multiplexer and a second multiplexer. The first multiplexer has a first multiplexer input, a second multiplexer input, and a first multiplexer output. The second multiplexer has a third multiplexer input, a fourth multiplexer input, and a second multiplexer output. A first analog-to-digital converter (ADC) has a first ADC input and a second ADC input. The first ADC input is coupled to the first multiplexer output. A second ADC has a third ADC input and a fourth ADC input. The third ADC input is coupled to the second multiplexer output. A first measurement channel pin is coupled to the first multiplexer input and to the third ADC input. A busbar pin is coupled to the second multiplexer input and the third multiplexer input.

Absstract of: US2023091921A1

An intermediary solid electrolyte structure having a Li ion conducting solid electrolyte layer covered with a thin as-deposited lithium phosphorus nitride film.