Lithium ion battery and lithium ion battery charge-discharge control method and device

A lithium-ion battery, charge-discharge control technology, applied in secondary battery charging/discharging, electrolyte storage battery manufacturing, secondary batteries, etc. and other problems to achieve the effect of increasing the overall capacity

Active Publication Date: 2021-03-05
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

If you use a lithium-ion battery with a high charging rate, the charging speed is fast, but due to the low volumetric energy density, if you want to increase the capacity of the lithium-ion battery, you can only increase the volume of the lithium-ion battery. The size of the device increas

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  • Lithium ion battery and lithium ion battery charge-discharge control method and device
  • Lithium ion battery and lithium ion battery charge-discharge control method and device
  • Lithium ion battery and lithium ion battery charge-discharge control method and device

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[0025] The exemplary embodiment will be described in detail herein, and examples thereof are shown in the drawings. The following description is related to the drawings, unless otherwise indicated, the same numbers in the drawings represent the same or similar elements. The embodiment described in the exemplary embodiments will not represent all embodiments consistent with the present invention. In contrast, examples of apparatus and methods consistent with some aspects of the invention, as detailed in the appended claims.

[0026] The present disclosure provides a lithium ion battery. The lithium ion battery includes a high magnification electrical core group and a low-magnification battery, and the high-magnification electrical core set and the low-magnification battery are connected in parallel, and the high-magnification electrical core group includes a plurality of series high magnification electrical cells. The single-magnification rate of the high-magnification battery is g...

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Abstract

The invention relates to a lithium ion battery and a lithium ion battery charging and discharging control method and device. The method is applied to a terminal, and the lithium ion battery comprisesa high-rate battery cell group and a low-rate battery cell; the high-rate battery cell group and the low-rate battery cell are connected in parallel, and the high-rate battery cell group comprises a plurality of high-rate battery cells connected in series; the charging multiplying power of a single high-multiplying-power battery cell is greater than that of a single low-multiplying-power battery cell, and the method comprises the following steps: acquiring a charging and discharging instruction for the lithium ion battery; preferentially charging the high-rate battery cell group according to the obtained charging instruction, or discharging the lithium ion battery according to the obtained discharging instruction and the temperature of the lithium ion battery. According to the method, theoverall capacity of the lithium ion battery is improved, and meanwhile, the requirement of a user for supplementing certain electric quantity in a short time is met.

Description

technical field [0001] The present disclosure relates to the field of lithium-ion batteries, in particular to a lithium-ion battery and a charging and discharging control method and device for the lithium-ion battery. Background technique [0002] At present, people have higher and higher requirements for lithium-ion battery capacity and charging speed. The volumetric energy density of a lithium-ion battery with a low charging rate is much greater than that of a lithium-ion battery with a high charging rate. Therefore, for a lithium-ion battery, the higher the charging rate, the shorter the charging time and the smaller the volumetric energy density. If you use a lithium-ion battery with a high charging rate, the charging speed is fast, but due to the low volumetric energy density, if you want to increase the capacity of the lithium-ion battery, you can only increase the volume of the lithium-ion battery. The size of the device increases. If you use a lithium-ion battery w...

Claims

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Application Information

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IPC IPC(8): H01M10/058H01M10/0525H01M10/44
CPCH01M10/058H01M10/0525H01M10/446H01M10/441Y02E60/10Y02P70/50
Inventor 张金虎魏学文李光胤
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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