CN106597290A - Charging voltage test method for prolonging service life of lithium battery of emergency intelligent lamp - Google Patents
Charging voltage test method for prolonging service life of lithium battery of emergency intelligent lamp Download PDFInfo
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- CN106597290A CN106597290A CN201510987748.XA CN201510987748A CN106597290A CN 106597290 A CN106597290 A CN 106597290A CN 201510987748 A CN201510987748 A CN 201510987748A CN 106597290 A CN106597290 A CN 106597290A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
Abstract
The invention provides a charging voltage test method for prolonging the service life of the lithium battery of an emergency intelligent lamp. When a certain type of lithium batteries is to be put to use at a normal working environment temperature, several lithium batteries of the above type are adopted, wherein the lithium batteries are normal in internal resistance, voltage and all the other performances. The capacity of each battery at the discharging current of 0.1 C is tested and recorded by a battery capacity tester. After that, for fully charging the above battery, the battery is charged at a constant voltage of 4.2 V and a discharging current of 0. 01C till the battery is fully charged. Then the battery is placed for 1 hour. At this time, the voltage is deemed as a fully charged voltage. After that, the recorded actual capacity of each battery is divided by ten, so that the accurate discharging current of 0.1C is obtained. The constant-current discharging process is conducted at the above current. The discharging process is conducted at every other hour after the discharging process lasts for one hour each time. Meanwhile, voltage values of different capacity ratios are recorded. The average value of voltage values of several battery capacity ratios is figured out and adopted as a capacity-ratio voltage value and then the capacity-ratio voltage value is well recorded. Based on the above test method of the present invention, the problem in the prior art that a lithium battery is short in service life when being in a fully-charged state for a long time can be effectively solved. Meanwhile, the safety problem is also effectively solved.
Description
Technical field
The invention belongs to field of lithium, and in particular to a kind of charging voltage method of testing of the emergent intelligent lamp service life of lithium battery of prolongation.
Background technology
In prior art, common charge protection is all so that full of lithium battery capacity, to protect voltage, said structure presence is following not enough：
When it is applied on commonly used product, using often expending by the electric Jing of battery, lithium battery will not be chronically at full state to product during due to not charging, so affecting little to service life of lithium battery.And battery can be full of every time during intelligent emergent lamp every day use, and at ordinary times Emergency use is little, so rechargeable battery can for a long time be in full state, so lithium battery service life is very short, and the lithium battery security of Full Charge Capacity is in for a long time is also at most dangerous state.
The content of the invention
The technical problem to be solved is to provide a kind of charging voltage method of testing of the emergent intelligent lamp service life of lithium battery of prolongation that can test out optimal intelligent emergent lamp lithium cell charging electricity.
The present invention is achieved through the following technical solutions：A kind of charging voltage method of testing for extending emergent intelligent lamp service life of lithium battery, it is characterised in that specifically include following step：
Step one, at a temperature of product normal operation circumstances, certain lithium battery that will be used（Different materials lithium battery voltage Capacity Ratio is all different）, take several internal resistance voltages and properties are all normal, test out the capacity of each battery 0.1C current discharges with battery capacity tester and record；
Step 2, above-mentioned battery is completely filled with again（4.2V is charged to 0.1C constant currents（Lithium manganate battery）；
Step 3, will be filled with after battery be again full of then placing 1 hour with 4.2V constant-voltage charges stream to 0.01C；
Step 4, the battery Jing after above three step are considered as full state；
Step 5, the actual capacity for recording on above-mentioned each fully charged battery are divided by the ten accurate discharge currents for obtaining its 0.1C；
Step 6, with the electric current constant-current discharge of above-mentioned step 5, often put a hour, every other hour, re-record the voltage of different capabilities ratio, then take average of several battery capacities than magnitude of voltage, as Capacity Ratio magnitude of voltage and record；
Step 7,50 batteries are taken again, the capacity of each battery is tested out respectively, and identified on battery, then again these batteries are divided into into ten groups and are filled with magnitude of voltage constant pressure during 10% to 100% capacity respectively；
Step 8, in 90 days daily two hours were charged to 50 batteries；
Step 9, tested per 90 days and a capacity and record, twice afterwards contrast obtains different capacity reduced value, according to this value and then according to different intelligent emergency light power consumption, the charge cutoff voltage value of the different battery demands of design.
The invention has the beneficial effects as follows：The present invention can effectively solving lithium battery because long-time is in the short situation of full state service life, and can effectively solving its safety issue.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, in addition to mutually exclusive feature and/or step, can combine by any way.
At a temperature of product normal operation circumstances,（1）Certain lithium battery that will be used（Different materials lithium battery voltage Capacity Ratio is all different）, take several internal resistance voltages and properties are all normal, test out the capacity of each battery 0.1C current discharges with battery capacity tester and record；（2）Above-mentioned battery is completely filled with again（4.2V is charged to 0.1C constant currents（Lithium manganate battery）；（3）Battery after will be filled with is again full of then placing 1 hour with 4.2V constant-voltage charges stream to 0.01C；（4）Battery Jing after above three step is considered as full state；
（5）By the actual capacity of above-mentioned each fully charged battery record divided by the ten accurate discharge currents for obtaining its 0.1C；（6）To battery constant-current discharge, a hour is often put, every other hour, re-record the voltage of different capabilities ratio, then take average of several battery capacities than magnitude of voltage, as Capacity Ratio magnitude of voltage and recorded；
（7）50 batteries are taken again, the capacity of each battery is tested out respectively, and identified on battery, then again these batteries are divided into into ten groups and are filled with magnitude of voltage constant pressure during 10% to 100% capacity respectively；（8）Daily two hours were charged to 50 batteries in 90 days；（9）A capacity was tested per 90 days and is recorded, twice afterwards contrast obtains different capacity reduced value, according to this value and then according to different intelligent emergency light power consumption, the charge cutoff voltage value of the different battery demands of design.
Jing above-mentioned steps test gained：It is optimal that intelligent emergent lamp lithium cell charging amount is arranged between the 40%-88% of total capacity；
It is optimal that cobalt acid lithium battery and ternary lithium cell charging cutoff voltage value are arranged between 3.80V-4.08V；
It is optimal that lithium manganate battery charge cutoff voltage value is arranged between 3.90V-4.10V.
The invention has the beneficial effects as follows：The present invention can effectively solving lithium battery because long-time is in the short situation of full state service life, and can effectively solving its safety issue.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change or replacement expected without creative work all should be included within the scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be limited by claims is defined.
Claims (1)
1. a kind of charging voltage method of testing for extending emergent intelligent lamp service life of lithium battery, it is characterised in that specifically include following step：
Step one, at a temperature of product normal operation circumstances, certain lithium battery that will be used（Different materials lithium battery voltage Capacity Ratio is all different）, take several internal resistance voltages and properties are all normal, test out the capacity of each battery 0.1C current discharges with battery capacity tester and record；
Step 2, above-mentioned battery is completely filled with again（4.2V is charged to 0.1C constant currents（Lithium manganate battery）；
Step 3, will be filled with after battery be again full of then placing 1 hour with 4.2V constant-voltage charges stream to 0.01C；
Step 4, the battery Jing after above three step are considered as full state；
Step 5, the actual capacity for recording on above-mentioned each fully charged battery are divided by the ten accurate discharge currents for obtaining its 0.1C；
Step 6, with the electric current constant-current discharge of above-mentioned step 5, often put a hour, every other hour, re-record different capabilities than when voltage, then take average of several battery capacities than magnitude of voltage, as Capacity Ratio magnitude of voltage and record；
Step 7,50 batteries are taken again, the capacity of each battery is tested out respectively, and identified on battery, then again these batteries are divided into into ten groups and are filled with magnitude of voltage constant pressure during 10% to 100% capacity respectively；
Step 8, in 90 days daily two hours were charged to 50 batteries；
Step 9, tested per 90 days and a capacity and record, twice afterwards contrast obtains different capacity reduced value, according to this value and then according to different intelligent emergency light power consumption, the charge cutoff voltage value of the different battery demands of design.
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| CN201510987748.XA CN106597290A (en) | 2015-12-24 | 2015-12-24 | Charging voltage test method for prolonging service life of lithium battery of emergency intelligent lamp |
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| CN201510987748.XA CN106597290A (en) | 2015-12-24 | 2015-12-24 | Charging voltage test method for prolonging service life of lithium battery of emergency intelligent lamp |
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| CN106597290A true CN106597290A (en) | 2017-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112599876A (en) * | 2020-12-22 | 2021-04-02 | 江苏双登富朗特新能源有限公司 | Regulation and control method for prolonging service life of lithium ion battery pack |
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| JP2004101188A (en) * | 2002-09-04 | 2004-04-02 | Sanyo Electric Co Ltd | Method for detecting full-charge capacity of battery |
| US20070196736A1 (en) * | 2004-03-29 | 2007-08-23 | Yasufumi Takahashi | Nonaqueous Electrolyte Secondary Battery |
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