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Battery structure and electric quantity measuring method thereof

A measurement method and battery technology, which is applied in the direction of measuring electricity, measuring devices, secondary batteries, etc., can solve problems such as misinterpretation and inability to directly measure battery terminal voltage

Inactive Publication Date: 2014-09-10
KYMCO +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, when the above-mentioned open-circuit voltage method is applied to lithium-iron batteries, there will be the following problems: (1) The open-circuit voltage curve of lithium-iron batteries is relatively gentle, and if the voltage value is directly measured, it may cause interpretation errors
(2) After the lithium-iron battery has passed the charge-discharge cut-off voltage, its voltage will continue to drift, so it is impossible to directly measure the battery terminal voltage as a judgment of the residual capacity

Method used

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  • Battery structure and electric quantity measuring method thereof
  • Battery structure and electric quantity measuring method thereof
  • Battery structure and electric quantity measuring method thereof

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Embodiment Construction

[0030] The preferred embodiments of the present invention are described in detail as follows in conjunction with the drawings.

[0031] First please refer to Figure 1A , Figure 1B , Figure 1C , Figure 1D and Figure 1E A schematic diagram of the battery configuration of the battery structure 10 according to the embodiment of the present invention is shown.

[0032] The battery structure includes a three-element battery 11 and more than one lithium-iron battery 12, from Figure 1A to Figure 1E It is known that regardless of the number of lithium-iron batteries 12 , the three-element batteries 11 and all the lithium-iron batteries 12 are connected in series, and the arrangement sequence of the three-element batteries 11 is not limited.

[0033] For example, the battery structure 10a and the battery structure 10b each have a three-element battery 11 and a lithium-iron battery 12, and the order of the two is not limited. The three-element battery can be configured first, a...

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Abstract

The invention discloses a battery structure and an electric quantity measuring method thereof. The battery structure comprises a series-connected three-element battery and at least one lithium iron battery. The electric quantity measuring method of the battery structure is characterized in that the electric quantity of the three-element battery is firstly measured so that the current electric quantity of the battery structure can be obtained according to the electric quantity of the three-element battery.

Description

technical field [0001] The present invention relates to a battery structure and a power measurement method, more specifically to a battery structure combined with a three-element battery and a power measurement method for obtaining the power of the overall battery structure by measuring the power of the three-element battery Background technique [0002] Lithium-ion batteries are the main force for battery development. Lithium-ion batteries are the first choice in terms of energy density, energy efficiency, cycle life, charging time and safety. In order to maximize the performance of the battery and prolong the service life of the battery, a battery management system must be installed for detection. The main purpose of the battery management system is to obtain battery status information, performance adjustment and battery external protection, among which the most relevant to the user An estimate of the remaining battery power. The remaining power of the battery is called S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/36H01M10/48
CPCY02E60/10
Inventor 黄昱仁林金亨林保成蔡祖扬林忠敬
Owner KYMCO
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