CN101949971A - Method for selecting low-voltage storage battery - Google Patents
Method for selecting low-voltage storage battery Download PDFInfo
- Publication number
- CN101949971A CN101949971A CN 201010277022 CN201010277022A CN101949971A CN 101949971 A CN101949971 A CN 101949971A CN 201010277022 CN201010277022 CN 201010277022 CN 201010277022 A CN201010277022 A CN 201010277022A CN 101949971 A CN101949971 A CN 101949971A
- Authority
- CN
- China
- Prior art keywords
- voltage
- battery
- setting
- accumulator
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Secondary Cells (AREA)
Abstract
The invention provides a method for selecting a low-voltage storage battery, comprising the following steps: continuously discharging the batteries to be selected to a set value; continuously discharging at the constant voltage of the set voltage to the set time or the battery current being lower than the set value, stopping discharging; keeping the discharged batteries for 1-30 days at 25-60 DEG. C and monitoring the open circuit voltage of the batteries, the batteries with the voltage being lower than the average voltage of the normal battery for 0.01V-0.5V are the low-voltage batteries. The method is fast and has high efficiency and no damage to the battery; the badness battery can be prevented and the product quality can be improved; the product complaint and repairing rate can be reduced.
Description
Technical field
The present invention relates to select the method for defective batteries, particularly a kind of method of selecting the low-voltage accumulator.
Background technology
Accumulator is in manufacture process, because foreign matter, pole plate burr, barrier film perforation and inner leakage reasons such as (Contiuum type accumulators) all may cause accumulator the phenomenon of low-voltage to occur.For these defective productss are picked out, the method for using has two kinds at present.A kind of is behind the intact capacity of battery detecting, fills certain capacity to battery, then battery is shelved after a period of time test capacity once more, how much judges certified products and unacceptable product according to capacitance loss.Another kind method is behind the intact capacity of battery detecting, and battery discharge to cut-off voltage, is shelved the open-circuit voltage that a period of time measures battery more then, judges certified products and unacceptable product according to the height of open-circuit voltage.Yet if the low-voltage phenomenon is not serious, the capacitance loss of battery is with not obvious, so use first method to judge out.Even use second method, battery discharge is arrived cut-off voltage, inside battery is still possessed a part of capacity, and this can make the open-circuit voltage of battery not be significantly reduced in considerable time, so will cause selecting chronic or defective products can't be picked out at all.Therefore, be necessary to study a kind of method of selecting the low-voltage accumulator fast and effectively, defective products sent in client's hand avoiding.
Summary of the invention
The present invention aims to provide a kind of quick, efficient, harmless to battery, method of selecting low-voltage battery of improving product percent of pass.
Embodiment of the present invention are as follows:
To reach setting value through battery continuous discharge to be selected to the voltage after the capacity check, again after constant voltage continuous discharge under this setting voltage to setting-up time or battery current is lower than setting value, stop discharge, described setting-up time is 1～72 hour, and described setting current value is 1mA～10A; Then the battery after the above-mentioned discharge is shelved 1～30 day under 25 ℃～60 ℃ temperature, and the open-circuit voltage of monitoring battery, the battery that voltage is lower than normal battery average voltage 0.01V～0.5V is a low-voltage battery.
Be the efficient that raising is selected, the preferred 10mA～5A of described setting current value.
When the single nickel of battery to be selected was accumulator, setting voltage value was 0.3～1.2V.
When battery to be selected is the nickel of a plurality of same capabilities when being accumulator, a plurality of batteries series connection, setting voltage value is to be that 0.3～1.2V is a benchmark with single battery voltage, magnitude of voltage adds up.
When the single lithium ion battery of battery to be selected, setting voltage value is 2.5～3.5V.
When battery to be selected is the lithium ion battery of a plurality of same capabilities, a plurality of batteries series connection, setting voltage value is that the voltage with monocell is that 2.5～3.5V is a benchmark, magnitude of voltage adds up.
The present invention compared with prior art, have the following advantages and beneficial effect: the present invention is under the prerequisite of not damaging accumulator property, realized picking out fast the purpose of low-voltage accumulator, and classic method can not also can be picked out by select slight defective products, avoid the defective products battery is delivered in client's hand, promoted product quality, reduced product complaint and maintenance rate.
Embodiment
Embodiment 1
Battery to be selected is 6 Ni-MH batteries that the 1C discharge capacity is 10Ah, with its series connection, continuous discharge is to setting voltage value 6V, the setting voltage value that is each Ni-MH battery is 1V, behind constant voltage discharge to 64 under this setting voltage 6V condition hour, stop discharge again, under 25 ℃, shelved 10 days then, the open-circuit voltage of monitoring accumulator, if there is voltage to be lower than the battery of normal battery average voltage 0.2V, then this accumulator is a low-voltage battery.
Embodiment 2
Basic identical with embodiment 1 step, just constant voltage discharge to discharge current stops discharge during less than 10mA.
Embodiment 3
Battery to be selected is the single nickel separation cell of 50Ah for the 1C discharge capacity, continuous discharge is to setting value 0.8V, behind constant voltage discharge to 6 under this setting voltage value condition hour, stop discharge again, under 60 ℃, shelved 3 days then, the open-circuit voltage of monitoring accumulator, if there is the voltage of battery to be lower than normal battery average voltage 0.05V, then this accumulator is a low-voltage battery.
Embodiment 4
Basic identical with embodiment 3 steps, just constant voltage discharge to discharge current stops discharge during less than 500mA.
Embodiment 5
Battery to be selected is the single lithium ion battery of 100Ah for the 1C discharge capacity, continuous discharge is to setting value 3.2V, behind constant voltage discharge to 1 under this setting voltage value condition hour, stop discharge again, under 25 ℃, shelved 21 days then, the open-circuit voltage of monitoring accumulator, if there is the voltage of battery to be lower than normal battery average voltage 0.3V, then this accumulator is a low-voltage battery.
Embodiment 6
Basic identical with embodiment 5 steps, just constant voltage discharge to discharge current stops discharge during less than 5A.
Embodiment 7
Battery to be selected is 3 lithium ion batteries that the 1C discharge capacity is 40Ah, with its series connection, continuous discharge is to setting voltage value 9V, the setting voltage value that is each lithium ion battery is 3V, behind constant voltage discharge to 1 under this setting voltage 9V condition hour, stop discharge again, under 45 ℃, shelved 3 days then, the open-circuit voltage of monitoring accumulator, if there is voltage to be lower than the battery of normal battery average voltage 0.2V, then this accumulator is a low-voltage battery.
Embodiment 8
Basic identical with embodiment 7 steps, just constant voltage discharge to discharge current stops discharge during less than 4A.
Claims (6)
1. method of selecting the low-voltage accumulator, it is characterized in that: will reach setting value through battery continuous discharge to be selected to the voltage after the capacity check, again after constant voltage continuous discharge under this setting voltage to setting-up time or battery current is lower than setting value, stop discharge, described setting-up time is 1～72 hour, and described setting current value is 1mA～10A; Then the battery after the above-mentioned discharge is shelved 1～30 day under 25 ℃～60 ℃ temperature, and the open-circuit voltage of monitoring battery, the battery that voltage is lower than normal battery average voltage 0.01V～0.5V is a low-voltage battery.
2. the method for selecting the low-voltage accumulator as claimed in claim 1 is characterized in that: the preferred 10mA～5A of described setting current value.
3. the method for selecting the low-voltage accumulator as claimed in claim 1 or 2 is characterized in that: described battery to be selected is that single nickel is accumulator, setting voltage value 0.3～1.2V.
4. the method for selecting the low-voltage accumulator as claimed in claim 1 or 2, it is characterized in that: the nickel that described battery to be selected is a plurality of same capabilities is accumulator, the series connection of then a plurality of batteries, setting voltage value is with single battery voltage 0.3～1.2V benchmark, the number of the looking battery to be selected magnitude of voltage that adds up.
5. the method for selecting the low-voltage accumulator as claimed in claim 1 or 2 is characterized in that: described battery to be selected is single lithium ion battery, and setting voltage value is 2.5～3.5V.
6. the method for selecting the low-voltage accumulator as claimed in claim 1 or 2, it is characterized in that: described battery to be selected is the lithium ion battery of a plurality of same capabilities, then a plurality of battery series connection, setting voltage value is to be that 2.5～3.5V is a benchmark with single battery voltage, the number of the looking battery to be selected magnitude of voltage that adds up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102770224A CN101949971B (en) | 2010-09-09 | 2010-09-09 | Method for selecting low-voltage storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102770224A CN101949971B (en) | 2010-09-09 | 2010-09-09 | Method for selecting low-voltage storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949971A true CN101949971A (en) | 2011-01-19 |
| CN101949971B CN101949971B (en) | 2012-05-30 |
Family
ID=43453540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102770224A Active CN101949971B (en) | 2010-09-09 | 2010-09-09 | Method for selecting low-voltage storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949971B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033115A (en) * | 2015-03-20 | 2016-10-19 | 神讯电脑(昆山)有限公司 | Battery screening method |
| CN106772096A (en) * | 2017-01-20 | 2017-05-31 | 国轩新能源（苏州）有限公司 | The screening technique of low-voltage lithium battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151020A (en) * | 1995-11-22 | 1997-06-04 | 北京有色金属研究总院 | Method for separating secondary cell |
| CN2700892Y (en) * | 2003-05-10 | 2005-05-18 | 比亚迪股份有限公司 | Battery detection sorting instrument |
| CN1876256A (en) * | 2005-06-06 | 2006-12-13 | 深圳市比克电池有限公司 | Battery screening system and method |
-
2010
- 2010-09-09 CN CN2010102770224A patent/CN101949971B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151020A (en) * | 1995-11-22 | 1997-06-04 | 北京有色金属研究总院 | Method for separating secondary cell |
| CN2700892Y (en) * | 2003-05-10 | 2005-05-18 | 比亚迪股份有限公司 | Battery detection sorting instrument |
| CN1876256A (en) * | 2005-06-06 | 2006-12-13 | 深圳市比克电池有限公司 | Battery screening system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033115A (en) * | 2015-03-20 | 2016-10-19 | 神讯电脑(昆山)有限公司 | Battery screening method |
| CN106772096A (en) * | 2017-01-20 | 2017-05-31 | 国轩新能源（苏州）有限公司 | The screening technique of low-voltage lithium battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101949971B (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103611692B (en) | Lithium iron phosphate power battery consistency matching screening method | |
| CN104459558B (en) | Lithium ion battery screening technique | |
| CN104218267B (en) | A kind of lithium ion battery divides appearance method for group matching | |
| WO2018209784A1 (en) | Lithium precipitation detection method for battery, battery management system, and battery system | |
| CN102403536B (en) | Formation method for cylindrical lithium battery | |
| CN104438138B (en) | Lithium ion battery screening method | |
| CN111106404B (en) | Floating charge optimization method for lithium iron phosphate battery | |
| CN104668207A (en) | Method for enhancing screening consistency of lithium-ion power battery | |
| CN102728564A (en) | Screening method of lithium cobaltate monomer batteries | |
| CN103594742A (en) | Sorting and grouping method for power lead-acid storage battery set | |
| CN105244976A (en) | Method and device of self-discharge storage | |
| CN112246691B (en) | Method for selecting Li (M1-xFex) PO4/Li4Ti5O12 high-capacity battery | |
| CN103311591A (en) | Repair method of lead-acid storage batteries | |
| CN101383434B (en) | Accumulator capacity resuming method, apparatus and system | |
| CN106025407A (en) | Method for restoring capacity of electric bicycle batteries | |
| CN103401037B (en) | A kind of charging method of traction accumulator | |
| CN101431166A (en) | Screening method for recessive short circuit lithium ion cell | |
| CN104259114A (en) | Screening method of lithium ion batteries with high self-discharging capacities | |
| CN101949971B (en) | Method for selecting low-voltage storage battery | |
| CN104979880A (en) | Three-state overcharge protection method of multi-section-series-connection battery charging | |
| CN106910957A (en) | A kind of secondary utilization lead-acid batteries screening technique | |
| CN104201420A (en) | Formation process for reducing self-discharge rate of battery core | |
| CN104682511B (en) | A kind of management of charging and discharging system and method for liquid metal cell series mould set | |
| CN107666019B (en) | Screening method of lithium titanate battery | |
| CN104466264A (en) | Charging and matching method for lead-acid storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method of selecting low voltage battery Effective date of registration: 20221028 Granted publication date: 20120530 Pledgee: Hunan Xiangjiang Zhongying Investment Management Co.,Ltd. Pledgor: HUNAN COPOWER EV BATTERY Co.,Ltd. Registration number: Y2022980020196 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |