CN106025364A - Lithium-capacity low-consumption lithium-ion battery formation method - Google Patents
Lithium-capacity low-consumption lithium-ion battery formation method Download PDFInfo
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- CN106025364A CN106025364A CN201610502549.XA CN201610502549A CN106025364A CN 106025364 A CN106025364 A CN 106025364A CN 201610502549 A CN201610502549 A CN 201610502549A CN 106025364 A CN106025364 A CN 106025364A
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- lithium
- ion battery
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- lithium ion
- battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a lithium-capacity low-consumption lithium-ion battery formation method which comprises the following specific steps: injecting electrolyte into a lithium ion battery, and standing for 24-48 hours at 35-55 DEG C; charging the obtained lithium ion battery at the speed of 0.05-0.1C at minus 10-10 DEG C for 2-4 hours, and standing for 4-6 hours at 20-40 DEG C after charging; charging the obtained lithium ion battery at the speed of 0.2-0.5C at 20-40 DEG C for 1.2-4.5 hours, and after charging is completed, terminating battery formation, and entering later procedures. Since the battery stands at high temperature, the infiltration effect of the electrolyte to a polar sheet can be effectively improved; meanwhile, in first formation charging, due to low current density and low ambient temperature, a formed SEI membrane can be relatively dense, relatively high in adhesion property on a positive electrode and relatively good in quality, and a relatively small amount of lithium ions can be consumed; in second formation charging, due to relatively large current density and appropriate temperature, a continuously generated SEI membrane can be loosened in structure, a relative large amount of electrolyte can be infiltrated, and a relatively high ionic conductivity can be achieved.
Description
Technical field
The invention belongs to lithium ion battery preparing technical field, be specifically related to a kind of lithium capacity low-loss lithium ion battery
One-tenth method.
Background technology
It is known that lithium ion battery is a kind of to have that energy density is high, the secondary cell of good cycle.In recent years with
The lithium ion battery of paying close attention to each side has obtained development at full speed, and it is each to be widely used in computer, mobile phone, automobile, base station etc.
The field of kind.
Chemical conversion is an of paramount importance process in lithium ion battery production process, and the good job of chemical conversion result directly influences
The capacity performance of battery and cycle performance etc..Lithium ion battery, when chemical conversion, can generate solid electrolyte circle in negative terminal surface
Facial film namely what is often called SEI film (solid electrolyte interface).SEI film is electronic body, is but lithium ion
Excellence conductor.So the Main Function of SEI prevents inside battery electron transfer exactly, reduce self-discharge of battery capacity, increase simultaneously
Add inside battery lithium ion mobility speed, improve battery high rate performance.And the lithium ion number generated in meeting consumable material of SEI film
Amount, therefore the growth of SEI film can cause the reduction of lithium capacity, makes battery capacity performance value less than Design Theory value.
The most common compound method for lithium ion battery is i.e. charged with certain current versus cell, although this method
Can reach certain formation effect, but the lithium capacity consumption of battery is big, battery capacity plays weak effect, causes battery capacity density
Decrease.
Summary of the invention
The purpose of the present invention solves that lithium capacity consumption in battery forming process is excessive exactly, the problem that battery capacity is low, existing
A kind of lithium capacity loss that can reduce in battery forming process is provided, improves battery capacity and play effect, improve battery performance
Lithium capacity low-loss compound method for lithium ion battery.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of lithium capacity low-loss lithium ion battery
Chemical synthesizing method, its innovative point is: described in specifically comprise the following steps that
(1), after lithium ion battery being injected electrolyte, under the conditions of the first design temperature, the first Preset Time is stood；
(2) under the second design temperature, the lithium ion battery of step (1) gained is charged, during charging with the first setting electric current
Between be the second Preset Time, after charging under the 3rd design temperature stand the 3rd Preset Time；
(3) under the 3rd design temperature, the lithium ion battery of step (2) gained is charged, during charging with the second setting electric current
Between be the 4th Preset Time, complete charging after, Battery formation terminates, enter subsequent handling.
Further, the first design temperature in described step (1) is 35-55 DEG C, and first in described step (1) is preset
Time is 24-48h.
Further, the second design temperature in described step (2) is-10-10 DEG C, and first in described step (2) sets
Determining electric current is 0.05C-0.1C, and the second Preset Time in described step (2) is 2-4h, the 3rd setting in described step (2)
Temperature is 20-40 DEG C, and the 3rd Preset Time in described step (2) is 4-6h.
Further, second in described step (3) sets electric current as 0.2-0.5C, and the 4th in described step (3) is pre-
If the time is 1.2-4.5h.
Beneficial effects of the present invention is as follows: the present invention uses quiescence in high temperature can be effectively increased electrolyte and imitates the infiltration of pole piece
Really, simultaneously when formation charging first, low electric current density and low ambient temperature is used to make the SEI film of formation finer and close,
Adhesive force on negative pole is higher, and the quality of SEI film is more preferable, and the amount of lithium ions of loss is less；During recharging chemical conversion, bigger electricity
The SEI membrane structure that current density and suitable temperature make continuation generate is loosened, it is allowed to more electrolyte infiltration, ionic conductivity
High.
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Embodiment 1
A kind of lithium capacity low-loss compound method for lithium ion battery, specifically comprises the following steps that
(1), after 43184 circular lithium-ion batteries being injected electrolyte, at 45 DEG C, 24h is stood；
(2) charging the lithium ion battery of step (1) gained with 0.05C at 0 DEG C, the charging interval is 4h, at 30 DEG C after charging
Lower standing 4h；
(3) being charged the lithium ion battery of step (2) gained with 0.4C at 30 DEG C, the charging interval is 2h, completes charging
After, Battery formation terminates, and enters subsequent handling.
Using the chemical synthesizing method of the present embodiment, after follow-up partial volume is tested, 43184 circular lithium-ion batteries capacity are
23Ah。
Embodiment 2
A kind of lithium capacity low-loss compound method for lithium ion battery, specifically comprises the following steps that
(4), after 43184 circular lithium-ion batteries being injected electrolyte, at 50 DEG C, 36h is stood；
(5) charging the lithium ion battery of step (4) gained with 0.05C at-5 DEG C, the charging interval is 4h, at 35 DEG C after charging
Lower standing 4h；
(6) being charged the lithium ion battery of step (5) gained with 0.25C at 35 DEG C, the charging interval is 3.2h, completes to fill
After electricity, Battery formation terminates, and enters subsequent handling.
Using the chemical synthesizing method of the present embodiment, after follow-up partial volume is tested, 43184 circular lithium-ion batteries capacity are
23.1Ah。
Embodiment 3
A kind of lithium capacity low-loss compound method for lithium ion battery, specifically comprises the following steps that and is injected by 43184 circular lithium-ion batteries
After electrolyte, at room temperature standing 24h, be charged battery with 0.25C at 30 DEG C, the charging interval is 4h.Battery formation
Rear entrance partial volume operation, and to test out 43184 circular lithium-ion batteries capacity be 22.8Ah.
By contrast experiment, this method lithium capacity loss is low, is more beneficial for the performance of battery capacity.
The present invention uses quiescence in high temperature can be effectively increased the electrolyte effect of impregnation to pole piece, fills in chemical conversion first simultaneously
During electricity, using low electric current density and low ambient temperature to make the SEI film of formation finer and close, the adhesive force on negative pole is higher,
The quality of SEI film is more preferable, and the amount of lithium ions of loss is less；During recharging chemical conversion, bigger electric current density and suitable temperature
The SEI membrane structure making continuation generate is loosened, it is allowed to more electrolyte infiltration, ionic conductivity is high.
Above-described embodiment is presently preferred embodiments of the present invention, is not the restriction to technical solution of the present invention, as long as
The technical scheme that can realize on the basis of above-described embodiment without creative work, is regarded as falling into patent of the present invention
Rights protection in the range of.
Claims (4)
1. a lithium capacity low-loss compound method for lithium ion battery, it is characterised in that specifically comprise the following steps that described in:
(1), after lithium ion battery being injected electrolyte, under the conditions of the first design temperature, the first Preset Time is stood；
(2) under the second design temperature, the lithium ion battery of step (1) gained is charged, during charging with the first setting electric current
Between be the second Preset Time, after charging under the 3rd design temperature stand the 3rd Preset Time；
(3) under the 3rd design temperature, the lithium ion battery of step (2) gained is charged, during charging with the second setting electric current
Between be the 4th Preset Time, complete charging after, Battery formation terminates, enter subsequent handling.
A kind of lithium capacity low-loss compound method for lithium ion battery the most according to claim 1, it is characterised in that: described step
Suddenly the first design temperature in (1) is 35-55 DEG C, and the first Preset Time in described step (1) is 24-48h.
A kind of lithium capacity low-loss compound method for lithium ion battery the most according to claim 1, it is characterised in that: described step
Suddenly the second design temperature in (2) is-10-10 DEG C, and first in described step (2) sets electric current as 0.05C-0.1C, described
The second Preset Time in step (2) is 2-4h, and the 3rd design temperature in described step (2) is 20-40 DEG C, described step
(2) the 3rd Preset Time in is 4-6h.
A kind of lithium capacity low-loss compound method for lithium ion battery the most according to claim 1, it is characterised in that: described step
Suddenly second in (3) sets electric current as 0.2-0.5C, and the 4th Preset Time in described step (3) is 1.2-4.5h.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252718A (en) * | 2016-10-19 | 2016-12-21 | 江苏海四达电源股份有限公司 | High power capacity electric tool column lithium ion battery and preparation method thereof |
| CN106785139A (en) * | 2016-12-26 | 2017-05-31 | 深圳市沃特玛电池有限公司 | A kind of method for lifting lithium battery circulation performance |
| CN106785147A (en) * | 2017-02-16 | 2017-05-31 | 中天储能科技有限公司 | A kind of lithium ion battery rapid forming method |
| CN108011139A (en) * | 2016-10-30 | 2018-05-08 | 深圳格林德能源有限公司 | Current-increasing temperature-changing type rapid charging formation method |
| CN109065826A (en) * | 2018-07-06 | 2018-12-21 | 合肥国轩高科动力能源有限公司 | A kind of wetting method of high capacity high-pressure solid negative electrode lithium ion battery |
| CN111162335A (en) * | 2020-01-02 | 2020-05-15 | 金妍 | Formation method of lithium ion battery |
| CN111710928A (en) * | 2020-06-10 | 2020-09-25 | 包头昊明稀土新电源科技有限公司 | Formation method of water-based power battery |
| CN112242565A (en) * | 2020-10-23 | 2021-01-19 | 唐山航天万源科技有限公司 | Low-voltage platform standing method for lithium ion power battery |
| CN113921917A (en) * | 2021-09-30 | 2022-01-11 | 蜂巢能源科技有限公司 | Electrolyte infiltration method of lithium ion battery |
| CN114204130A (en) * | 2021-12-08 | 2022-03-18 | 湖北亿纬动力有限公司 | Lithium ion battery and formation method and application thereof |
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| JP2009148046A (en) * | 2007-12-12 | 2009-07-02 | Sanyo Electric Co Ltd | Charging method |
| CN102208685A (en) * | 2011-05-04 | 2011-10-05 | 恒正科技（苏州）有限公司 | Processing method for formation of lithium ion batteries |
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| CN102208685A (en) * | 2011-05-04 | 2011-10-05 | 恒正科技（苏州）有限公司 | Processing method for formation of lithium ion batteries |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252718A (en) * | 2016-10-19 | 2016-12-21 | 江苏海四达电源股份有限公司 | High power capacity electric tool column lithium ion battery and preparation method thereof |
| CN108011139A (en) * | 2016-10-30 | 2018-05-08 | 深圳格林德能源有限公司 | Current-increasing temperature-changing type rapid charging formation method |
| CN108011139B (en) * | 2016-10-30 | 2019-07-09 | 深圳格林德能源集团有限公司 | Current-increasing temperature-changing type rapid charging formation method |
| CN106785139A (en) * | 2016-12-26 | 2017-05-31 | 深圳市沃特玛电池有限公司 | A kind of method for lifting lithium battery circulation performance |
| CN106785147A (en) * | 2017-02-16 | 2017-05-31 | 中天储能科技有限公司 | A kind of lithium ion battery rapid forming method |
| CN109065826A (en) * | 2018-07-06 | 2018-12-21 | 合肥国轩高科动力能源有限公司 | A kind of wetting method of high capacity high-pressure solid negative electrode lithium ion battery |
| CN111162335A (en) * | 2020-01-02 | 2020-05-15 | 金妍 | Formation method of lithium ion battery |
| CN111162335B (en) * | 2020-01-02 | 2021-05-28 | 广州明美新能源股份有限公司 | Formation method of lithium ion battery |
| CN111710928A (en) * | 2020-06-10 | 2020-09-25 | 包头昊明稀土新电源科技有限公司 | Formation method of water-based power battery |
| CN111710928B (en) * | 2020-06-10 | 2022-10-11 | 包头昊明稀土新电源科技有限公司 | Formation method of water-based power battery |
| CN112242565A (en) * | 2020-10-23 | 2021-01-19 | 唐山航天万源科技有限公司 | Low-voltage platform standing method for lithium ion power battery |
| CN113921917A (en) * | 2021-09-30 | 2022-01-11 | 蜂巢能源科技有限公司 | Electrolyte infiltration method of lithium ion battery |
| CN113921917B (en) * | 2021-09-30 | 2023-02-28 | 蜂巢能源科技有限公司 | Electrolyte infiltration method of lithium ion battery |
| CN114204130A (en) * | 2021-12-08 | 2022-03-18 | 湖北亿纬动力有限公司 | Lithium ion battery and formation method and application thereof |
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Application publication date: 20161012 |