Battery internal resistance patent

LAYERED BATTERY INTERNAL RESISTANCE MEASURING

The present disclosure aims at providing an inexpensive internal resistance measurement device capable of measuring internal resistance even when a battery is not

System and method for measuring battery internal resistance

Abstract: In one aspect the present disclosure relates to a system for measuring an internal resistance of a battery. The system may involve: a processor; a load module responsive to the processor for applying a load across the battery; a current sense subsystem for sensing the current flowing to the load module and generating a sensed current signal in accordance

BU-902: How to Measure Internal Resistance

Before exploring the different methods of measuring the internal resistance of a battery, let''s examine what electrical resistance means and understand the difference between pure resistance (R) and impedance (Z).

Method for determining a battery internal resistance

The invention relates to a method for determining the internal resistance of a battery, in particular a lead-acid battery for a motor vehicle electrical system according to the term of...

Method for inferring internal DC resistance of lithium ion battery

The invention discloses a method for inferring the internal DC resistance of a lithium ion battery. The method comprises the steps of performing cyclic tests on a sampled battery in the environment of a certain temperature and certain humidity, and testing the internal AC resistance IR0 and the internal DC resistance DCIR0 in a certain SOC state every certain cycles,

Measuring Battery DC Internal Resistance with a 24xx

What is Battery Internal Resistance? An ideal battery has no internal resistance. Internal resistance in a battery comes from any part of the battery that could inhibit current flow. This includes poor connections between the electrolyte and the electrodes, poor welds between the electrodes and the tabs, or other imperfections. These

Battery heating system using internal battery resistance

A battery heater uses the internal resistance of the battery as the battery heating element. In one embodiment, a DC battery charger and a programmable battery load, is used in a closed loop temperature control system. 1993-08-24 Priority to US08/110,891 priority Critical patent/US5362942A/en 1993-08-24 Assigned to INTERDIGITAL TECHNOLOGY

Battery DC internal resistance measuring method

A kind of battery DC internal resistance measuring method, includes the following steps：10. detect the current variation value Δ I of present battery n More than rated current changing value I 0 ；20. in predetermined time T, the electric current of battery and voltage w times are detected, calculates the average value of each curent change With the average value of voltage change

EP2071345A1

EP2071345A1 EP08171112A EP08171112A EP2071345A1 EP 2071345 A1 EP2071345 A1 EP 2071345A1 EP 08171112 A EP08171112 A EP 08171112A EP 08171112 A EP08171112 A EP

Battery with metallized film current collector having low internal

2020-11-10 Priority to AU2020391357A priority patent/AU2020391357A1/en Such structural modifications relate to thinner metal current collector structures that increase internal resistance levels of a battery cell and the concomitant decrease in internal cell resistance through modifications of electrode coatings as an accommodation in that

SYSTEM AND METHOD FOR MEASURING BATTERY INTERNAL RESISTANCE

[0002] The internal resistance of a battery indicates the capacity of the battery to supply power to a load or circuit. The internal resistance may be measured periodically to insure that a battery meets a predetermined state of health (SOH). Based on field testing of various types of batteries, such as lead, lead acid and lead calcium batteries, once the internal

Method and apparatus for estimating maximum power of battery

a controller 200 entirely controls units of FIG. 3, and performs processes for estimating the maximum power of the battery according to the preferred embodiment of the present invention. Specifically, after performing the measurement of temperature, estimation of the state of charge, and the calculation of the internal resistance value, the controller 200 reads the value of the

Why is it Important to Measure Battery''s

When the battery''s internal resistance, R DC, is 1 Ω, and the load, R, is 9 Ω, the battery outputs a voltage of 9 V. However, if the internal resistance increases to 2 Ω, the output voltage

Ohmmeter for measuring the internal resistance of a battery

The internal resistance of the battery is indicated at the indicating portion of the AC voltmeter circuit so that it is read directly. Patent [1.91 [111 3,753,094 Furuishi et al. Aug. 14, 1973 OHMMETER FOR MEASURING THE [56] References Cited INTERNAL RESISTANCE OF A BATTERY UNITED STATES PATENTS AND DIRECTLY READING THE MEASURED 2 811

CN112557929A

The invention discloses a battery internal resistance testing method, electronic equipment and a storage medium. The method comprises the following steps: acquiring an anode ohmic resistance and a cathode ohmic resistance; discharging the battery, and calculating the polarization internal resistance of the anode and the polarization internal resistance of the cathode in the

Battery Internal Resistance

To illustrate this, consider a simple experiment with a AA cell. When connected to a 4 Ω resistor, the voltage across the battery terminals might drop from its VOC of 1.5V to around 1.45V. This drop is due to the battery''s internal resistance. Quote: "The internal resistance of a battery is like the resistance of a water pipe. The larger

Battery internal resistance testing fixture

The utility model discloses a battery internal resistance testing fixture, which is convenient in operation and capable of prolonging the service life of equipment. A left positioning plate and a right positioning plate are fixed onto a fixture bottom plate. The battery internal resistance testing fixture is characterized in that internal resistance test probes are fixed onto the inner sides

Apparatus and method for estimating internal resistance of battery

The method for measuring internal resistance of a cell in a high voltage battery for a vehicle disclosed in Korean Patent Laid-Open Publication No. 2011-0006266 includes:

How to Lower battery internal resistance patent retrieval

Eureka provides all invention patents, utility model patents, and design patents related to Lower battery internal resistance for R&D engineers, R&D managers, and intellectual property professionals, including patent numbers, applicants, technical effects, abstracts, and drawings. You can check Lower battery internal resistance relevant patent data for query retrieval analysis.

U.S. Patent Application for BATTERY INTERNAL SHORT-CIRCUIT

TECHNICAL FIELD. The present invention relates to a device, a method, a battery pack and an electronic device system for detecting an internal short circuit of a nonaqueous electrolyte secondary battery, such as a nonaqueous electrolyte secondary battery that has, between its negative electrode and positive electrode, a heat-resistant layer

BATTERY INTERNAL RESISTANCE DETECTION DEVICE AND

Internal resistance of the battery is an important technical indictor for measuring performance of the battery. Increasement of the battery internal resistance will reduce discharge working

Solid-State Battery Developments: A Cross-Sectional Patent

However, the widespread adoption of SSBs faces significant challenges, including low charge mobility, high internal resistance, mechanical degradation, and the use of unsustainable materials. The advances and opportunities of developing solid-state battery technology: Based on the patent Information Relation Matrix. Energy 2024, 296, 131178

CN211741365U

The utility model relates to a lithium cell test technical field, in particular to lithium cell voltage internal resistance test fixture. The test die pressing device comprises a base, a test die block fixed on the base, a test pressing die suspended above the test die block and a driving component for driving the test pressing die to press fit the test die block.

SYSTEM AND METHOD FOR MEASURING BATTERY INTERNAL

The method may com-prise: applying a load across a pair of terminals of the battery; sensing a current flowing through the load and generating a sensed current signal in accordance there

CN1763551A

2005-10-28 Priority to CN 200510100753 priority Critical patent/CN1763551A/en 2006-04-26 Publication of CN1763551A publication Critical patent/CN1763551A/en Status Pending legal-status Critical Current Links. Espacenet; Storage battery internal resistance detection device and method US12072388B2 (en) 2019-12-31: 2024-08-27: Huawei

CN111142037A

The invention discloses an on-line detection method for internal resistance of a high-frequency discharge storage battery, wherein a detection system comprises the storage battery and a controller, an ADC (analog-to-digital converter) sampling circuit is connected to the storage battery, and two ends of the storage battery are connected with a discharge loop; the online

A battery internal resistance measuring circuit

The battery internal resistance measuring circuit has simple structure and small damage to the battery itself in the measuring process, has short measuring time...

KR101531638B1

The present invention relates to a method for measuring internal resistance of a battery using a DC internal resistance measuring method for measuring an internal resistance of a battery by applying a current to the battery, the method comprising: measuring a current pattern for applying a charging / discharging current to the battery, .

Method and device for measuring internal resistance of battery

A device for measuring an internal resistance of a battery includes a charging unit, a switch, a measuring unit, and a calculating unit. The charging unit is used for respectively charging the battery through a first resistor (R 1 ) and a second resistor (R 2 ). The switch is used for selectively connecting one of the first resistor and the second resistor to the battery.

US Patent Application for BATTERY INTERNAL RESISTANCE

The battery internal resistance detecting device provided in the present application may be mounted in a battery production system, for example, to perform internal resistance detection

Method for detecting DC internal resistance of battery

The method for detecting DC internal resistance of a battery is simple and is short in time, and is accurate in the values after detection by means of combination of the discharging data for 8 different multiplying powers, and can eliminate abnormally high or low values caused by accidental factors, and can accurately reflect the impedance

CN114814620A

The invention solves the technical problems of low detection accuracy and incomplete detection in a mode of detecting the battery through technical parameters in the related technology.

Battery internal resistance patent [PDF]

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