A method for determining the maximum withstand temperature of a battery
A technology that can withstand temperature and determine the method, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problem of about 50 ℃, some batteries may be about 80 ℃ or higher, to achieve the effect of ensuring safety
Active Publication Date: 2021-08-17
ELECTRODER LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, due to differences in battery formula, design, and manufacturing process, the maximum withstand temperature of different batteries is also quite different. For example, some batteries may be around 50°C, and some batteries may be at 80°C. Around or higher, in order to ensure the safety of battery use, it is particularly important to determine the maximum withstand temperature of different batteries
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Embodiment one: see Figure 1~3 As shown, a method for determining the maximum withstand temperature of a battery includes the following steps:
[0024] Within the preset temperature range of 10°C to 40°C, starting from 10°C, at intervals of 10°C, measure a set of OCV values corresponding to the open circuit voltage at the experimental temperature K of the battery to be tested, such as 10°C , 20°C, 30°C, 40°C;
[0025] Using the standard SOC-OCV curve of the battery to be tested, the corresponding SOC value is obtained from each of the open circuit voltage OCV values, wherein the open circuit voltage OCV value refers to the terminal voltage of the battery in an open circuit state, and the SOC The value refers to the ratio of the available power in the battery to the nominal capacity;
[0026] The SOC% / 100h is represented by y, K is represented by x, and h represents the time unit. The data obtained after the above test are as follows:
[0027] 10℃ 20℃ ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for determining the maximum withstand temperature of a battery, which comprises the following steps: within a preset temperature range, measuring the corresponding open circuit voltage OCV values of multiple groups of batteries to be tested at an experimental temperature K; Open circuit voltage OCV value to obtain the corresponding SOC value; draw the relationship curve SOC% / 100h‑K; use SOC% / 100h‑K to calculate and draw the relationship line ㏑(SOC% / 10h)‑1 / K; start from the test temperature T , at every interval ΔT, measure the corresponding SOC value of the battery under test at Tn temperature, mark the point An in the test chart, repeat the above test until the pre-maximum withstand temperature Tm of the battery under test is obtained; The above-mentioned maximum tolerance temperature Tm is tested to obtain the maximum tolerance temperature Tmax. By using the method to detect the highest tolerance temperature of different batteries, the battery can be used at the highest tolerance temperature to ensure the safety of its use.
Description
technical field [0001] The invention relates to the field of batteries, in particular to a method for determining the maximum withstand temperature of batteries. Background technique [0002] Battery temperature refers to the heating phenomenon on the surface of the battery due to chemical and electrochemical changes in the internal structure, electron migration, and material transport when the battery is in use. It is a normal phenomenon. However, if the heat generated cannot be completely dissipated to the environment, it will cause the accumulation of internal heat in the battery. When the temperature is too high, the battery will undergo irreversible internal damage and cannot continue to work normally. If the internal heat of the battery accumulates in the battery The highest temperature point may cause thermal runaway of the battery, causing fire, explosion and other phenomena. Therefore, preventing the temperature from being too high is an important task of battery m...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/392G01R31/3835G01R31/367
CPCG01R31/36G01R31/367G01R31/3835G01R31/392
Inventor 陈新虹
Owner ELECTRODER LTD