Battery aging data acquisition system

Abstract

The utility model relates to a battery aging data acquisition system, which comprises a plurality of to-be-tested battery pieces, at least one aging device, at least one data acquisition module and an upper computer, and is characterized in that the plurality of aging devices are connected with the plurality of to-be-tested battery pieces and are used for carrying out charge-discharge cycle aging on the to-be-tested battery pieces; the system comprises a plurality of to-be-tested battery pieces, at least one data acquisition module connected with the plurality of to-be-tested battery pieces and used for acquiring performance parameters of the to-be-tested battery pieces after aging, and an upper computer connected with the data acquisition module and used for reading the performance parameters of the to-be-tested battery pieces. By adopting the method, the performance parameters of the to-be-tested battery pieces after aging are acquired through the data acquisition module, and the performance parameters corresponding to the plurality of to-be-tested battery pieces are read through the upper computer, so that the data acquisition is convenient and fast, and the battery aging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery performance testing, and in particular to a battery aging data acquisition system. Background Art

[0002] Battery aging refers to testing the performance stability and life of a battery by subjecting it to long-term charge and discharge cycles. Specifically, long-term charge and discharge cycles can detect the battery's electrical properties such as discharge capacity, charging speed, and internal resistance. It can also simulate the performance changes of the battery during long-term use, so as to promptly discover the attenuation of the battery and make maintenance and replacement plans for the battery in advance. Therefore, battery aging is an important means to ensure the quality and reliability of batteries.

[0003] Aging devices are important equipment for battery aging. Currently, multiple aging devices are generally used to test multiple battery components during battery aging. During the test, performance parameters of multiple battery components are usually read manually, resulting in low overall test efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a battery aging data acquisition system that can improve the aging efficiency of battery components in response to the above technical problems.

[0005] The present application provides a battery aging data acquisition system, which includes:

[0006] Several battery components to be tested;

[0007] A plurality of aging devices, connected to the plurality of battery components to be tested, for performing charge-discharge cycle aging on the battery components to be tested;

[0008] At least one data acquisition module, connected to the plurality of battery components to be tested, and used to collect performance parameters of each battery component to be tested after aging;

[0009] The host computer is connected to the data acquisition module and is used to read the performance parameters of each battery unit to be tested.

[0010] In one embodiment, the number of data acquisition modules is less than the number of battery components to be tested, and at least one data acquisition module is used to collect performance parameters of multiple battery components to be tested after aging.

[0011] In one embodiment, the aging device includes one or more performance submodules, each performance submodule is connected to a corresponding battery unit to be tested to perform charge and discharge cycle aging.

[0012] In one embodiment, the performance submodule is provided with a number, and the number is used to quickly locate the corresponding battery component to be tested.

[0013] In one embodiment, the aging device further includes an environment setting submodule, and the environment setting submodule is used to determine an aging environment for aging the battery unit to be tested, and the aging environment includes temperature and / or humidity.

[0014] In one embodiment, the environment setting submodule includes a test cabinet, which is provided with a plurality of boxes for accommodating the battery components to be tested.

[0015] In one embodiment, the environment setting submodule includes a temperature unit for determining temperature and a humidity unit for determining humidity.

[0016] In one embodiment, the temperature unit includes a heating device and a temperature sensor connected to each other, the heating device is used to heat each box, and the temperature sensor is used to determine that the temperature of the box after heating is within a preset temperature range.

[0017] In one embodiment, the humidity unit includes a humidity regulator, and the humidity regulator is used to determine that the humidity of the box is within a preset humidity range.

[0018] In one embodiment, the battery device to be tested includes one or more of a battery cell, a battery module, a battery pack, a battery CTC, and a battery CTB.

[0019] The above-mentioned battery aging data acquisition system includes a number of battery components to be tested, a number of aging devices, at least one data acquisition module and a host computer, wherein: a number of aging devices are connected to a number of battery components to be tested, and are used to perform charge-discharge cycle aging on the battery components to be tested; at least one data acquisition module is connected to a number of battery components to be tested, and is used to collect performance parameters of the battery components to be tested after aging; the host computer is connected to the data acquisition module, and is used to read the performance parameters of each battery component to be tested. The battery aging data acquisition system of the present application collects the performance parameters of the battery components to be tested after aging through the data acquisition module connected to the battery components to be tested, and reads the performance parameters corresponding to the battery components to be tested through the host computer. Data acquisition is convenient and fast, and the battery aging efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] FIG1 is a schematic diagram of the structure of a battery aging data acquisition system in one embodiment;

[0022] FIG2 is a schematic diagram of the structure of a battery aging data acquisition system in another embodiment;

[0023] FIG3 is a schematic diagram of the structure of a battery aging data acquisition system in another embodiment;

[0024] In the figure: 100 - battery component to be tested, 200 - aging device, 300 - data acquisition module, 400 - host computer. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0030] Referring to FIG. 1 , FIG. 1 shows a schematic diagram of the structure of a battery aging data acquisition system in an embodiment of the present application. The battery aging data acquisition system includes a plurality of battery components 100 to be tested, a plurality of aging devices 200 , at least one data acquisition module 300 and a host computer 400 , wherein:

[0031] A plurality of aging devices 200 are connected to a plurality of battery components 100 to be tested, and are used to perform charge-discharge cycle aging on the battery components 100 to be tested.

[0032] At least one data acquisition module 300 is connected to a plurality of battery components 100 to be tested, and is used to collect performance test data of each battery component 100 to be tested after aging.

[0033] The host computer 400 is connected to the data acquisition module 300 and is used to read various performance parameters of each battery unit 100 to be tested.

[0034] As shown in FIG1 , there are one or more aging devices 200 in the embodiment of the present application, and one aging device 200 can be used to perform charge-discharge cycle aging on one or more battery components 100 to be tested. There can be one or more data acquisition modules 300, and one data acquisition module 300 can be used to collect performance parameters of one or more battery components 100 to be tested connected thereto. After collecting the performance parameters, the data acquisition module 300 sends them to the host computer 400, and the host computer 400 reads the performance parameters of the test component after aging.

[0035] The battery aging data acquisition system of this embodiment acquires the performance parameters of the battery unit 100 to be tested after aging through the data acquisition module 300, and reads the performance parameters corresponding to several battery units 100 to be tested through the host computer 400. The data acquisition is convenient and fast, and the battery aging efficiency is improved.

[0036] In a possible implementation of the embodiment shown in FIG. 1 , the number of data acquisition modules 300 is less than the number of battery components 100 to be tested, and at least one data acquisition module 300 is used to collect performance parameters of multiple battery components 100 to be tested after aging.

[0037] In this embodiment, the number of data acquisition modules 300 is set to be smaller than the number of battery components 100 to be tested, so that during the performance parameter collection process, at least one data acquisition module 300 collects the performance parameters of multiple battery components 100 to be tested, thereby avoiding separate data collection to a certain extent, improving the collection efficiency, and thus improving the overall aging efficiency.

[0038] In the embodiment of the present application, the battery component 100 to be tested may include one or more of a battery cell, a battery module, a battery pack, a battery CTC, and a battery CTB. Among them, a battery CTC (Cell to Chassis) refers to a battery component that integrates a battery module into the chassis of a vehicle, and a battery CTB (Cell to Board) refers to a battery component that directly connects a battery cell to a circuit board to achieve close integration of the battery and the control circuit.

[0039] In an embodiment of the present application, the data acquisition module 300 may be a data acquisition board, which is a hardware device for collecting and processing electrical signals, analog signals or sensor data. It typically includes circuits for functions such as signal interface, signal conditioning, analog-to-digital conversion (ADC) and digital-to-analog conversion (DAC).

[0040] In one embodiment, the aging device 200 includes one or more performance submodules, each of which is connected to a battery unit 100 to be tested to perform charge-discharge cycle aging. Each performance submodule corresponds to a different battery unit 100 to be tested.

[0041] In one embodiment, one or more performance submodules are provided with numbers, and the numbers of the performance submodules are used to quickly locate the corresponding battery unit 100 to be tested. It is understandable that for the battery unit 100 to be tested that is aged with different charge and discharge cycles, the battery unit 100 to be tested can be quickly matched with the corresponding aging program by setting the numbers.

[0042] In one embodiment, the aging device 200 further includes an environment setting submodule for determining an aging environment for aging the battery unit 100 to be tested, wherein the aging environment includes temperature and / or humidity.

[0043] In one embodiment, the environment setting submodule includes a test cabinet, which is provided with a plurality of boxes for accommodating the battery unit 100 to be tested. The battery unit 100 to be tested can be placed in the test cabinet for aging treatment, and then connected to the battery unit 100 to be tested through the data acquisition module 300 to collect performance parameters.

[0044] The environment setting submodule may include a temperature unit for determining temperature, and a humidity unit for determining humidity.

[0045] The temperature unit includes a heating device and a temperature sensor connected to each other. The heating device is used to provide heat energy for an aging environment for aging the battery component to be tested. The heating device is used to heat each box. The temperature sensor is used to determine whether the temperature of the box after heating is within a preset temperature range.

[0046] The humidity unit includes a humidity regulator, which is used to determine whether the humidity of the box is within a preset humidity range.

[0047] It can be understood that the working principle of the test cabinet may include the following steps:

[0048] Step A1, placing the battery unit 100 to be tested on a test bench in the box.

[0049] Step A2, controlling the temperature in the box or cabinet within a set range through a temperature unit, such as a heating device and a temperature sensor, to simulate the performance of the battery unit 100 to be tested under different temperature environments.

[0050] Step A3, controlling the humidity in the box or cabinet by a humidity unit, such as a humidity regulator, to simulate the performance of the battery unit 100 to be tested under different humidity environments.

[0051] Step A4, using a performance submodule, such as a charge and discharge device, to perform charge and discharge cycle aging on the battery, simulating the performance of the battery unit 100 under different charge and discharge cycles.

[0052] Step A5, after the aging is completed, the performance parameters of the battery unit 100 to be tested after aging are collected through the data acquisition module 300, such as a data acquisition board, and the performance parameters are sent to the host computer 400.

[0053] In step A6, the host computer 400 can obtain information about the aging degree and service life of the battery unit 100 to be tested by analyzing the performance parameters. The measuring cabinet simulates the impact of different environmental factors on battery performance and evaluates the aging degree and service life of the battery, which is of great significance for improving battery quality, optimizing product design, and promoting the further development of battery technology.

[0054] In one embodiment, a battery aging data acquisition system is provided, taking a data acquisition board as a data acquisition module 300 and a PC as a host computer 400 as an example. The system includes multiple aging cabinets, each of which is used to perform environmental simulation on multiple battery components 100 to be tested. As shown in FIG2 , multiple battery components 100 to be tested can form a battery assembly to be tested, and one battery assembly to be tested is aged by an aging device 200. Each battery component 100 to be tested is aged by only one performance submodule, and each battery component 100 to be tested in each battery assembly to be tested corresponds to a data acquisition board, and one data acquisition board corresponds to one or more battery components 100 to be tested.

[0055] It can be understood that each aging device 200 is used to age multiple battery components 100 to be tested, and obtain performance parameters corresponding to the multiple battery components 100 to be tested. A data acquisition board is used to collect the performance parameters of one or more battery components 100 to be tested connected thereto, and send them to a PC so that the PC processes the performance parameters and evaluates the aging degree and service life of the battery.

[0056] As shown in FIG3 , in one embodiment, four battery components 100 to be tested are aged using one aging device 200, and the performance parameters of the four battery components 100 to be tested are collected by two data acquisition modules 300. One data acquisition module 300 collects the performance parameters of the two battery components 100 to be tested after aging, and transmits the performance parameters to the host computer 400 for analysis. During the data acquisition process, the battery component 100 to be tested corresponds to the data acquisition module 300, and the aging data of the battery component 100 to be tested is read by the host computer 400.

[0057] In this embodiment, a data acquisition module 300 is provided to collect performance parameters of a plurality of battery components 100 to be tested, thereby avoiding separate data acquisition to a certain extent, improving acquisition efficiency, and thus improving overall aging efficiency.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A battery aging data acquisition system, characterized in that: The system comprises: Several battery components to be tested; A plurality of aging devices, connected to the plurality of battery components to be tested, for performing charge-discharge cycle aging on the battery components to be tested; At least one data acquisition module, connected to the plurality of battery components to be tested, and used to collect performance parameters of each battery component to be tested after aging; The host computer is connected to the data acquisition module and is used to read the performance parameters of each battery unit to be tested.

2. The system according to claim 1, characterized in that The number of the data acquisition modules is less than the number of the battery components to be tested, and at least one data acquisition module is used to collect performance parameters of multiple battery components to be tested after aging.

3. The system according to claim 1, characterized in that The aging device includes one or more performance submodules, each of which is connected to a corresponding battery unit to be tested to perform charge-discharge cycle aging.

4. The system according to claim 3, characterized in that The performance submodule is provided with a number, and the number is used to quickly locate the corresponding battery component to be tested.

5. The system according to claim 1, characterized in that The aging device further comprises an environment setting submodule, and the environment setting submodule is used to determine an aging environment for aging the battery unit to be tested, and the aging environment comprises temperature and / or humidity.

6. The system according to claim 5, characterized in that The environment setting submodule includes a temperature unit for determining temperature and a humidity unit for determining humidity.

7. The system according to claim 6, characterized in that The temperature unit includes a heating device and a temperature sensor connected to each other, the heating device is used to provide heat energy to the aging environment for aging the battery unit to be tested, and the temperature sensor is used to determine that the temperature of the aging environment after heating is within a preset temperature range.

8. The system according to claim 6, characterized in that The humidity unit includes a humidity regulator, and the humidity regulator is used to determine that the humidity of the aging environment of the battery unit to be tested is within a preset humidity range.

9. The system according to claim 1, characterized in that The battery component to be tested includes one or more of a battery cell, a battery module, a battery pack, a battery CTC, and a battery CTB.

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