Ion battery multi-parameter integration device and preparation method thereof
A technology for ion batteries and integrated devices, which is applied in the field of multi-parameter integrated devices for ion batteries, can solve problems such as failure to detect abnormalities in time, increased complexity and workload, and high production costs
Inactive Publication Date: 2020-07-07
RISESUN MENGGULI NEW ENERGY SCIENCE & TECHNOLOGY CO LTD
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Problems solved by technology
These methods are not only difficult to process and manufacture, but cannot accurately detect the internal specified position of a single lithium-ion battery, so that abnormalities cannot be found in time, and the implantation position of the micro sensor has poor accuracy, complicated process, and high production cost, which also damages the lithium-ion battery. The airtightness of the overall structure even reduces the effective area of the electrode pair where the sensor is located, which in turn affects the performance of the lithium-ion battery
In addition, measuring each parameter inside the lithium-ion battery one by one undoubtedly increases the complexity and workload, and also has a great impact on the stability of the perform
Method used
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[0036] The following is attached Figure 1-6 The technical solution of the present invention is further described.
[0037] refer to Figure 1-2 ( figure 1 For the ipsilateral pole ear, figure 2 As shown on the opposite side, the integrated sensor formed by the internal temperature sensor (6), voltage sensor (7), pressure sensor (8) and stress sensor (9) of the lithium ion battery of the present invention is placed in the lithium ion battery (1) Specify the thickness position, the shape of the lithium-ion battery (1) can be cylindrical, square, or soft-packed, and the positive and negative pole pieces can be wound or laminated. The manufacturing steps of the integrated device are:
[0038] In the first step, the temperature sensor (6) and the voltage sensor (7) are arranged at intervals on one side of the polyimide substrate (2), and the pressure sensor (8) and the stress sensor (9) are arranged at intervals on the polyimide substrate ( 2) on the other side;
[0039] In...
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Abstract
The invention belongs to the field of battery detection. The invention relates to an ion battery, in particular to an ion battery multi-parameter integration device. In the device, an integrated sensor is arranged on the polyimide substrate; the polyimide substrate and the integrated sensor are both arranged in the ion battery, the integrated sensor is composed of a temperature sensor, a voltage sensor, a pressure sensor and a stress sensor, the temperature sensor and the voltage sensor are arranged on one side of the polyimide substrate, and the pressure sensor and the stress sensor are arranged on the other side of the polyimide substrate; one end of the lead connects the temperature sensor, the voltage sensor, the pressure sensor and the stress sensor, and the other end of the lead extends to the lead port; the polyimide protective films are arranged on the surfaces of the temperature sensor, the voltage sensor, the pressure sensor, the stress sensor and the lead. The device is widein application range, anti-interference, simple, convenient and feasible, can be produced on a large scale, and can be adapted to winding type, laminated type or other modes of lithium ion batteries.
Description
technical field [0001] The invention belongs to the field of battery testing, and in particular relates to an ion battery multi-parameter integration device and a testing method thereof. Background technique [0002] Lithium-ion batteries have the advantages of high energy density, high specific power, low self-discharge rate, long life, wide application temperature range, fast charging, high energy conversion efficiency, and no environmental pollution. They are widely used in digital electronics and power batteries. . Lithium-ion batteries will be accompanied by heat generation during the charging and discharging process, causing the battery temperature to rise and the temperature distribution to be uneven, and then the internal temperature of the battery and the distribution of various parameters related to the lithium ion concentration will be affected, thereby accelerating the attenuation of the battery . When the battery temperature is higher than 60°C, the stability ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M10/48H01M10/0525H01M10/058
CPCH01M10/0525H01M10/058H01M10/48H01M10/486Y02E60/10Y02P70/50
Inventor 聂志华孙影于斐何新婷吴可吴宁宁
Owner RISESUN MENGGULI NEW ENERGY SCIENCE & TECHNOLOGY CO LTD