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Battery

A technology in batteries and batteries, applied in secondary batteries, lithium batteries, circuits, etc., can solve problems such as the influence of electrode potential, the inability to accurately and reliably measure the potential of positive and negative electrodes, and the increased risk of battery leakage

Active Publication Date: 2012-06-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the battery structure designed by this technical solution is low, but it cannot completely solve the problem of the influence of polarization on the electrode potential, because although the reference electrode 1 is close to the negative terminal cover plate, it still has a certain distance from the negative electrode, and is formed by an independent port 2, the measured potential is not the potential of one of the electrodes of the battery, so this scheme cannot accurately and reliably measure the potential of either electrode of the positive and negative electrodes
In addition, this solution also complicates the manufacturing process and increases the risk of battery leakage due to the addition of additional electrode extraction ports

Method used

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Embodiment Construction

[0014] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0015] In the embodiment of the present invention, on the premise of not increasing the complexity of the battery manufacturing process, the method of implanting the reference electrode or the detection device containing the reference electrode into the battery, and connecting it to the positive or negative electrode of the battery with electrical insulation, can accurately The detection of electrode potential can avoid the increase of the risk of leakage caused by the increase of lead-out terminals.

[0016] Such as Figure 2A -B is the front view and top view of the battery structure in the embodiment of the present invention. Figure 2A The battery shown in includes a detection device 200 and a wire 300 . Wherein, the detection device 200 is located at one end of the negative electrode inside the battery, and has ...

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Abstract

The invention relates to a battery. The battery comprises a detection device and a conductive wire, wherein the detection device is positioned inside the battery and on the positive electrode side or the negative electrode side of the battery and is used for detecting the inner electric potential of the battery; and the conductive wire is electrically connected with the detection device, is insulated from the positive electrode and the negative electrode of the battery and is used for leading out the electric potential value detected by the detection device. The detection device is arranged inside the battery provided by the embodiment, and the detection device is led out together with the positive electrode and the negative electrode of the battery by using the conductive wire which is electrically connected with the detection device, so that the potential of a single electrode can be measured accurately and stably.

Description

technical field [0001] The present invention relates to the field of terminals, in particular to a battery. Background technique [0002] Rechargeable secondary batteries or battery packs are increasingly used in mobile phones, laptop computers, power tools, electric vehicles (including hybrid, plug-in hybrid, and full electric vehicles), backup power systems, and other energy storage systems. In these applications, the operation of the battery is usually not in the full SOC range, so it is important to have an accurate knowledge of the battery's state of charge (SOC). However, judging the SOC of the battery by detecting the battery voltage is often inaccurate. For example, for lithium-ion batteries, there is a plateau voltage in the range of about 50% SOC as the center. Within this platform voltage range, the voltage of the battery varies greatly with the SOC Small. In addition, the voltage of the battery does not reflect the respective potentials of the electrodes (that ...

Claims

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Application Information

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IPC IPC(8): H01M10/48H01M50/55H01M50/553H01M50/569
CPCY02E60/12H01M10/48H01M10/486H01M10/052G01R31/3658H01M10/4257H01M6/5005Y02E60/10H01M50/553H01M50/55H01M50/569H01M10/4235H01M50/578H01M50/581H01M50/59G01R31/36G01R31/382
Inventor 丁杰
Owner HUAWEI TECH CO LTD
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