CN104880232A - Flexible package lithium-ion battery formation gas production rate testing device and using method thereof - Google Patents
Flexible package lithium-ion battery formation gas production rate testing device and using method thereof Download PDFInfo
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- CN104880232A CN104880232A CN201510278026.7A CN201510278026A CN104880232A CN 104880232 A CN104880232 A CN 104880232A CN 201510278026 A CN201510278026 A CN 201510278026A CN 104880232 A CN104880232 A CN 104880232A
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Abstract
The invention discloses a flexible package lithium-ion battery formation gas production rate testing device and a using method thereof. The flexible package lithium-ion battery formation gas production rate testing device comprises a beaker, a measuring cylinder, a battery, two wires, a base and a formation device. The beaker is placed on the base in an inclined mode. The battery is placed in the beaker. One ends of the two wires are connected with the two electrodes of the battery respectively. The other ends of the two wires are connected with the positive electrode and the negative electrode of the formation device respectively. The measuring cylinder is placed under a beaker mouth. The using method of the flexible package lithium-ion battery formation gas production rate testing device comprises the steps that liquid is injected into the beaker, the liquid overflows out of the beaker along with the formation gas production process, and the volume of the liquid is measured by the measuring cylinder. Gas production rates at different voltages and different times in all stages of the battery formation process can be tested through the beaker and the measuring cylinder, the testing device is simple and easy to operate, the testing time can be flexibly grasped, and the gas production rate in the formation process can be easily, conveniently and rapidly tested.
Description
Technical field
The present invention relates to lithium ion battery technical field of measurement and test, specifically a kind of testing flexible lithium ion battery changes into device and the using method thereof of gas production rate.
Background technology
Lithium ion battery through development for many years, to its research more and more refinement.Change into the first time charging behavior as lithium ion battery, have very important impact to the whole chemical property of lithium ion battery.The chemical reaction occurred in formation process is very complicated, also be difficult to the reactive mode distinguishing every single step reaction at present, the situation of reaction process, but its external performance is exactly inevitably produce certain gas, so analyze the aerogenesis situation changing into each stage, just have very important directive significance.
Summary of the invention
The object of the present invention is to provide a kind of proving installation simple, be easy to operate, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of testing flexible lithium ion battery changes into the device of gas production rate, comprise beaker, graduated cylinder, battery, wire, base and formation device, described beaker slant setting is on base, described battery is positioned in beaker, described wire is provided with two, one end of two wires connects the two poles of the earth of battery respectively, and the other end of two wires connects the both positive and negative polarity of formation device respectively, and described graduated cylinder is positioned over immediately below the cup mouth of beaker.
As the further scheme of the present invention: be also connected with voltage table between two described wires.
As the further scheme of the present invention: each tie point of described wire and battery, formation device all carries out insulation processing.
As the further scheme of the present invention: the measuring accuracy of described graduated cylinder and the gas production rate of battery match.
Described testing flexible lithium ion battery changes into the using method of the device of gas production rate, and concrete steps are as follows:
1) beaker, battery, wire, base and formation device are installed, and graduated cylinder is placed on immediately below beaker cup mouth;
2) in beaker, inject liquid until liquid is spilled over to graduated cylinder from cup mouth, and make the complete submergence of battery in a liquid;
3) original bulk of liquid in graduated cylinder is recorded;
4) after changing into beginning, inside battery aerogenesis makes the volume of battery constantly expand, and the liquid in beaker is constantly spilt in graduated cylinder;
5) record the open-circuit voltage that the volume of liquid in a graduated cylinder, formation device or voltage table show every 25-35s with timer;
6) gas production rate of different phase in formation process is obtained according to the open-circuit voltage of different time in formation process and spilling water component analysis.
As the present invention's further scheme: described battery is immersed in the liquid of beaker in formation process always.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention only need get final product the gas production rate of different voltage of each stage, different time in test battery formation process by beaker and graduated cylinder, proving installation is simple, be easy to operation, the test duration can be grasped flexibly, the gas production rate of test formation process that can be easy, quick and easy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-beaker; 2-graduated cylinder; 3-battery; 4-wire; 5-base.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of testing flexible lithium ion battery changes into the device of gas production rate, comprise beaker 1, graduated cylinder 2, battery 3, wire 4, base 5 and formation device, described beaker 1 slant setting is on base 5, described battery 3 is positioned in beaker 1, described wire 4 is provided with two, one end of two wires 4 connects the two poles of the earth of battery 3 respectively, the other end of two wires 4 connects the both positive and negative polarity of formation device respectively, also voltage table is connected with between two wires 4, wire 4 and battery 3, each tie point of formation device all carries out insulation processing, avoid the reaction occurring in charging process that other non-formation processes such as brine electrolysis produce, described graduated cylinder 2 is positioned over immediately below the cup mouth of beaker 1, the measuring accuracy of graduated cylinder 2 and the gas production rate of battery 3 match.
Described testing flexible lithium ion battery changes into the using method of the device of gas production rate, and concrete steps are as follows:
1) beaker 1, battery 3, wire 4, base 5 and formation device are installed, graduated cylinder 2 is placed on immediately below beaker 1 glass of mouth;
2) in beaker 1, liquid is injected until liquid is spilled over to graduated cylinder 2 from cup mouth, and make the complete submergence of battery 3 in a liquid, liquid does not affect the reaction type and reaction process that battery 3 changes into, and the trace change of the battery 3 aerogenesis volume caused by the pressure of liquid in beaker to battery 3 is ignored;
3) during overflow in beaker 1, the liquid of spilling must all enter into graduated cylinder 2, and ensures the accuracy measured, and records the original bulk of liquid in graduated cylinder 2;
4) after changing into beginning, the inner aerogenesis of battery 3 makes the volume of battery 3 constantly expand, and make the liquid in beaker 1 constantly spill in graduated cylinder 2, battery 3 is immersed in the liquid of beaker 1 in formation process always;
5) record the open-circuit voltage that the volume of liquid in a graduated cylinder 2, formation device or voltage table show every 25-35s with timer, the interval time of record data can shorten according to actual needs or extend;
6) gas production rate of different phase in formation process is obtained according to the open-circuit voltage of different time in formation process and spilling water component analysis.
Embodiment 1
Testing flexible lithium ion battery changes into a using method for the device of gas production rate, and concrete steps are as follows:
1) beaker 1, battery 3, wire 4, base 5 and formation device are installed, graduated cylinder 2 is placed on immediately below beaker 1 glass of mouth;
2) in beaker 1, inject water until water is spilled over to graduated cylinder 2 from cup mouth, and battery 3 is immersed in water completely, changed by the trace burning the battery 3 aerogenesis volume that the pressure of water in the cup to battery 3 causes and ignore;
3) when the water in beaker 1 overflows, the water of spilling must all enter into graduated cylinder 2, and ensures the accuracy of measurement, and records the original bulk of water in graduated cylinder 2;
4) after changing into beginning, the inner aerogenesis of battery 3 makes the volume of battery 3 constantly expand, and make the water in beaker 1 constantly spill in graduated cylinder 2, battery 3 is immersed in the water of beaker 1 in formation process always;
5) record the open-circuit voltage that the volume of water in a graduated cylinder 2, formation device or voltage table show every 30s with timer;
6) gas production rate of different phase in formation process is obtained according to the open-circuit voltage of different time in formation process and spilling water component analysis.
The present invention only need get final product the gas production rate of different voltage of each stage, different time in test battery formation process by beaker 1 and graduated cylinder 2, proving installation is simple, be easy to operation, the test duration can be grasped flexibly, the gas production rate of test formation process that can be easy, quick and easy.
In the face of the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also make various change under the prerequisite not departing from this patent aim.
Claims (6)
1. a testing flexible lithium ion battery changes into the device of gas production rate, comprise beaker (1), graduated cylinder (2), battery (3), wire (4), base (5) and formation device, it is characterized in that, described beaker (1) slant setting is on base (5), described battery (3) is positioned in beaker (1), described wire (4) is provided with two, one end of two wires (4) connects the two poles of the earth of battery (3) respectively, the other end of two wires (4) connects the both positive and negative polarity of formation device respectively, and described graduated cylinder (2) is positioned over immediately below beaker (1) cup mouth.
2. testing flexible lithium ion battery according to claim 1 changes into the device of gas production rate, it is characterized in that, is also connected with voltage table between two described wires (4).
3. testing flexible lithium ion battery according to claim 1 changes into the device of gas production rate, it is characterized in that, described wire (4) all carries out insulation processing with each tie point of battery (3), formation device.
4. testing flexible lithium ion battery according to claim 1 changes into the device of gas production rate, it is characterized in that, the measuring accuracy of described graduated cylinder (2) and the gas production rate of battery (3) match.
5. the testing flexible lithium ion battery as described in as arbitrary in claim 1-4 changes into a using method for the device of gas production rate, and it is characterized in that, concrete steps are as follows:
1) beaker (1), battery (3), wire (4), base (5) and formation device are installed, graduated cylinder (2) is placed on immediately below beaker (1) cup mouth;
2) in beaker (1), inject liquid until liquid is spilled over to graduated cylinder (2) from cup mouth, and make the complete submergence of battery (3) in a liquid;
3) original bulk of liquid in graduated cylinder (2) is recorded;
4) after changing into beginning, battery (3) inner aerogenesis makes the volume of battery (3) constantly expand, and makes the liquid in beaker (1) constantly spill in graduated cylinder (2);
5) with the open-circuit voltage that timer shows on the volume of liquid during 25-35s records graduated cylinder (2), formation device or voltage table;
6) gas production rate of different phase in formation process is obtained according to the open-circuit voltage of different time in formation process and spilling water component analysis.
6. testing flexible lithium ion battery according to claim 5 changes into the using method of the device of gas production rate, it is characterized in that, described battery (3) is immersed in the liquid of beaker (1) in formation process always.
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| CN105137304A (en) * | 2015-09-15 | 2015-12-09 | 国家电网公司 | Method for determining threshold of action of metallized film capacitor complete machine pressure protector |
| CN106769642A (en) * | 2017-01-12 | 2017-05-31 | 浙江零跑科技有限公司 | A kind of method for measuring inner pressure of battery and gas production |
| CN107084860A (en) * | 2017-06-20 | 2017-08-22 | 海南聚能科技创新研究院有限公司 | Reaction generation minimum gas on-line detecting system |
| CN108332817A (en) * | 2018-01-26 | 2018-07-27 | 合肥国轩高科动力能源有限公司 | Testing device and testing method for quantifying gas production volume in battery |
| CN108387286A (en) * | 2017-05-18 | 2018-08-10 | 惠州市宙邦化工有限公司 | A kind of battery producing gas test device |
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| CN106769642A (en) * | 2017-01-12 | 2017-05-31 | 浙江零跑科技有限公司 | A kind of method for measuring inner pressure of battery and gas production |
| CN108387286A (en) * | 2017-05-18 | 2018-08-10 | 惠州市宙邦化工有限公司 | A kind of battery producing gas test device |
| CN107084860A (en) * | 2017-06-20 | 2017-08-22 | 海南聚能科技创新研究院有限公司 | Reaction generation minimum gas on-line detecting system |
| CN108332817A (en) * | 2018-01-26 | 2018-07-27 | 合肥国轩高科动力能源有限公司 | Testing device and testing method for quantifying gas production volume in battery |
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Application publication date: 20150902 |