Mobile temperature measuring instrument for secondary battery and charging/discharging device comprising same
A temperature measurement and secondary battery technology, applied in the field of temperature devices, can solve the problems of increased capacity test deviation, insufficient cooling performance to reduce the temperature deviation of the secondary battery 1, and can not reflect the temperature deviation, etc., to achieve the effect of improving accuracy
Pending Publication Date: 2020-11-27
LG ENERGY SOLUTION LTD
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Problems solved by technology
However, in many cases, the cooling performance of currently available air conditioners is insufficient to reduce the temperature deviation between the secondary batteries 1
[0009] Temperature deviation between secondary batteries 1 causes changes in resistance and voltage, and increases deviation in capacity test
The charging / discharging capacity is calculated using a temperature-based correction equation to compensate for the difference between the preset temperature and the actual temperature of the air conditioner obtained by measuring the temperature using a thermocouple 5, but the conventional thermocouple 5 does not measure every secondary The temperature of the battery 1, but the atmospheric temperature in the tray 3 is measured, and accordingly, it cannot reflect the temperature deviation between the secondary batteries 1 in the tray 3
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[0046] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. However, the embodiments of the present disclosure may be modified in other different forms, and the scope of the present disclosure should not be construed as being limited to the embodiments disclosed below. These embodiments are provided to help those of ordinary skill in the art to fully understand the present disclosure.
[0047] It should be understood that the terms or words used in the specification and appended claims should not be construed as limited to the ordinary and dictionary meanings, but based on the principle of allowing the inventor to properly define the terms for the best interpretation, based on the technology of the present disclosure The corresponding meanings and concepts of aspects are explained. Therefore, the embodiments described herein and the contents shown in the accompanying drawings are only the most pr...
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Provided are a temperature measuring instrument suitable for measuring the temperature of each secondary battery and a charging / discharging device comprising same for taking into account a temperaturevariation between secondary batteries that may occur during charging and discharging in a formation process and a capacity inspection after an assembly process of the secondary battery. The temperature measuring instrument according to the present invention is for measuring the temperature of at least one of a plurality of secondary batteries that are arranged upright with one side in the Y-axisfacing downward so as to be spaced apart from each other along the X-axis, and comprises: a non-contact temperature sensor unit inserted into the gaps between the secondary batteries to measure the temperatures of the secondary batteries which face each other in a non-contact manner; and a Z-axis feed mechanism for ascending / descending the non-contact temperature sensor unit along the Z-axis to insert the non-contact temperature sensor unit into the gaps downwardly from a position spaced above the secondary batteries along the Z-axis and withdraw the non-contact temperature sensor unit in theopposite direction.
Description
technical field [0001] The present disclosure relates to an apparatus for measuring the temperature of a secondary battery and a charge / discharge apparatus including the apparatus. This application claims the benefit of Korean Patent Application No. 10-2018-0067737 filed with the Korean Intellectual Property Office on June 12, 2018, the disclosure of which is incorporated herein by reference in its entirety. Background technique [0002] With technological development and increasing demands for mobile devices, electric vehicles, hybrid electric vehicles, energy storage systems (ESS) and uninterruptible power systems (UPS), the demand for secondary batteries as energy sources is increasing dramatically, and In order to satisfy various needs, much research has been made on secondary batteries. [0003] Since the assembly process is performed on the secondary battery in a discharged state, the assembled secondary battery is charged to be activated to function as a battery. Ac...
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IPC IPC(8): H01M10/42H01M4/04H01M10/44G01J5/00
CPCY02E60/10H01M10/486G01J5/047G01J5/0205G01J5/10H01M10/443
Inventor 李范君朴孝镇裵东训裵峻晟李义景洪锡显
Owner LG ENERGY SOLUTION LTD