CN101621137A - Lithium ion battery precharge process system - Google Patents
Lithium ion battery precharge process system Download PDFInfo
- Publication number
- CN101621137A CN101621137A CN200810068205A CN200810068205A CN101621137A CN 101621137 A CN101621137 A CN 101621137A CN 200810068205 A CN200810068205 A CN 200810068205A CN 200810068205 A CN200810068205 A CN 200810068205A CN 101621137 A CN101621137 A CN 101621137A
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- China
- Prior art keywords
- rate
- process system
- lithium ion
- precharge process
- ion battery
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Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 235000012773 waffles Nutrition 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention discloses a lithium ion battery precharge process system, which comprises a temperature of between 15 and 25 DEG C, a charge rate of between 0.05 and 0.2C, and a charge time of between 5 and 7 hours. According to precharge process system of the invention, the initial efficiency of an obtained sample battery precharged for 5 to 7 hours is 88.5 to 92 percent and the production efficiency and the precharge quality are high.
Description
[technical field]
The present invention relates to the battery manufacturing technology, the especially a kind of lithium ion battery precharge process system that can take into account production efficiency and preliminary filling quality.
[background technology]
The application of lithium ion battery is extensive day by day at present, the battery requirements amount constantly increases, for the battery producer, to constantly upgrade the efficiency on the one hand to reduce manufacturing cost, to enlarge output, require on the other hand technology is improved and improved to guarantee product quality when raising the efficiency.
Along with the mechanization production of lithium electricity industry, preliminary filling has become the key link of present restriction throughput rate and product quality, and how to improve the preliminary filling timeliness under the prerequisite that guarantees battery quality is a problem that needs to be resolved hurrily.
[summary of the invention]
Technical problem to be solved by this invention provides a kind of lithium ion battery precharge process system that can take into account production efficiency and preliminary filling quality.
For solving the problems of the technologies described above, the invention provides a kind of lithium ion battery precharge process system, temperature is 15 ℃-25 ℃, and rate of charge is 0.05C-0.2C, and the charging interval is 5h-7h.
On this basis:
As preferred precharge process system of the present invention, rate of charge is 0.1C, and the charging interval is 7h.
As preferred precharge process system of the present invention, earlier with 0.1C rate of charge charging 4h, again with 0.2C rate of charge charging 1h.
As preferred precharge process system of the present invention, earlier with 0.05C rate of charge charging 2h, again with 0.1C rate of charge charging 3h, then with 0.2C rate of charge charging 1h.
As preferred precharge process system of the present invention, earlier with 0.1C rate of charge charging 5h, again with 0.2C rate of charge charging 1h.
In the precharge process system of the present invention, humidity can be controlled at less than 30%.
The invention has the beneficial effects as follows: adopt precharge process system of the present invention, the sample battery that obtains behind the process 5h-7h preliminary filling is efficient 88.5%-92% first, has taken into account production efficiency and preliminary filling quality.
[embodiment]
Make the 423450-850mAh battery sample, the anode electrode surface density of all battery samples is 43.5-44.0mg/cm
2, the negative pole surface density is 19.0-19.34mg/cm
2, the N/P value is 1.06, reservoir quantity is controlled to be 2.8g.
Get the above-mentioned battery sample behind the ageing 24h after the fluid injection (to guarantee that electrolyte fully soaks into pole piece), under the condition of humidity 25%, multiplying power and the time combination listed in the new waffle that can write down charging capacity becomes cashier's office in a shop by table are charged respectively to six Battery packs, the charging finish after static 5 minutes, then with the 1C multiplying power discharging to 3.0V.With the ratio of discharge capacity and charging capacity as first charge-discharge efficiency.
Become to carry out the test of partial volume capacity cashier's office in a shop at new waffle, deposit shelving after the cleaning of the 423450-850mAh battery sample after sealing, aging 96 hours, be charged to 4.2V through CC (1C), CV when electric current is 10mA by, after static 5 minutes, to 3.0V and write down discharge capacity, be the partial volume capacity with the 1C multiplying power discharging.
The preliminary filling system of each embodiment and the mean value of test result see Table one.
Table one embodiment preliminary filling system and test result
| Embodiment | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 |
| Temperature ℃ | ??15 | ??18 | ??25 | ??20 | ??25 | ??24 |
| ??C/h | ??0.1/5 | ??0.1/6 | ??0.1/7 | ??0.1/4-0.2/1 | ??0.05/2-0.1/3-0.2/1 | ??0.1/5-0.2/1 |
| Efficient first | ??88.5％ | ??90.5％ | ??92％ | ??90.1％ | ??90.8％ | ??91％ |
| The partial volume capacity | ??845.2 | ??852.3 | ??879.5 | ??865.2 | ??879.2 | ??876.5 |
In the table one, the preliminary filling system of embodiment 4 is: earlier with 0.1C rate of charge charging 4h, again with 0.2C rate of charge charging 1h; The preliminary filling system of embodiment 5 is: earlier with 0.05C rate of charge charging 2h, again with 0.1C rate of charge charging 3h, then with 0.2C rate of charge charging 1h; The preliminary filling system of embodiment 6 is: earlier with 0.1C rate of charge charging 5h, again with 0.2C rate of charge charging 1h.
Test result in the table one shows, the sample battery that adopts precharge process system of the present invention to pass through to obtain behind the 1h-3h preliminary filling is efficient 88.5%-92% first, and partial volume capacity 845.2mAh-879.5mAh has taken into account production efficiency and preliminary filling quality.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1, a kind of lithium ion battery precharge process system is characterized in that: temperature is 15 ℃-25 ℃, and rate of charge is 0.05C-0.2C, and the charging interval is 5h-7h.
2, lithium ion battery precharge process system according to claim 1 is characterized in that: rate of charge is 0.1C, and the charging interval is 7h.
3, lithium ion battery precharge process system according to claim 1 is characterized in that: earlier with 0.1C rate of charge charging 4h, again with 0.2C rate of charge charging 1h.
4, lithium ion battery precharge process system according to claim 1 is characterized in that: earlier with 0.05C rate of charge charging 2h, again with 0.1C rate of charge charging 3h, then with 0.2C rate of charge charging 1h.
5, lithium ion battery precharge process system according to claim 1 is characterized in that: earlier with 0.1C rate of charge charging 5h, again with 0.2C rate of charge charging 1h.
6, according to claim 1,2,3,4 or 5 described lithium ion battery precharge process systems, it is characterized in that: humidity is less than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068205A CN101621137A (en) | 2008-06-30 | 2008-06-30 | Lithium ion battery precharge process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810068205A CN101621137A (en) | 2008-06-30 | 2008-06-30 | Lithium ion battery precharge process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101621137A true CN101621137A (en) | 2010-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810068205A Pending CN101621137A (en) | 2008-06-30 | 2008-06-30 | Lithium ion battery precharge process system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101621137A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807730A (en) * | 2010-03-31 | 2010-08-18 | 张家港睿能科技有限公司 | Power lithium battery and charging method of pre-charging stage of series-connected group thereof |
| CN104638311A (en) * | 2015-03-11 | 2015-05-20 | 浙江中科立德新材料有限公司 | Formation method of aqueous iron-lithium battery |
| CN110611124A (en) * | 2018-06-14 | 2019-12-24 | 深圳市比克动力电池有限公司 | Micro-electricity pre-charging activation method of lithium ion battery |
-
2008
- 2008-06-30 CN CN200810068205A patent/CN101621137A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807730A (en) * | 2010-03-31 | 2010-08-18 | 张家港睿能科技有限公司 | Power lithium battery and charging method of pre-charging stage of series-connected group thereof |
| CN101807730B (en) * | 2010-03-31 | 2012-09-05 | 张家港睿能科技有限公司 | Power lithium battery and charging method of pre-charging stage of series-connected group thereof |
| CN104638311A (en) * | 2015-03-11 | 2015-05-20 | 浙江中科立德新材料有限公司 | Formation method of aqueous iron-lithium battery |
| CN110611124A (en) * | 2018-06-14 | 2019-12-24 | 深圳市比克动力电池有限公司 | Micro-electricity pre-charging activation method of lithium ion battery |
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Application publication date: 20100106 |