CN1635646A - Method for preparing sectionally rolled electrode - Google Patents
Method for preparing sectionally rolled electrode Download PDFInfo
- Publication number
- CN1635646A CN1635646A CNA2003101221592A CN200310122159A CN1635646A CN 1635646 A CN1635646 A CN 1635646A CN A2003101221592 A CNA2003101221592 A CN A2003101221592A CN 200310122159 A CN200310122159 A CN 200310122159A CN 1635646 A CN1635646 A CN 1635646A
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- electrode
- rolling
- segmentation
- preparation
- carried out
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- 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
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- Battery Electrode And Active Subsutance (AREA)
Abstract
This invention refers to a method for making sectional rolled electrode, which contains putting electrode between two rollers of rolling machine, making first whole length rolling, then putting the rolled electrode in again, making second partially rolling to obtain the sectional rolled electrode with raised mechanical strength and rolling density. Said invention has simple operation, low cost and reliable quality and can be used for preparation of lithium ion cell.
Description
Technical field
The invention belongs to the battery component preparing technical field, particularly relate to a kind of preparation method of segmentation rolling electrode.
Background technology
At present, electrode rolls the real density decision finally can adorn active matter quality in limited housing, can be used as the approach that improves battery capacity.The preparation of traditional battery pole piece is the whole piece pole piece to be placed on carry out at the uniform velocity rolling in the roller mill, and this method is when rolling real density hour, and under the equal length, the electrode that winds is difficult to put into battery case, perhaps can put battery case into, and capacity is very low again; When rolling real density when big, electrode mechanical strength variation, initial volume around the time because curvature is bigger, rupture easily, limited the application of this approach.
Summary of the invention
The present invention provides a kind of preparation method of segmentation rolling electrode for solving problems of the prior art.
Improve electrode and roll real density and improve battery dressing amount but the purpose of this invention is to provide a kind of both the utilization, utilize again and improve the electrode mechanical strength and guarantee the preparation method of initial volume around the segmentation rolling electrode of intensity.
The present invention adopts following technical scheme:
The preparation method of segmentation rolling electrode, electrode is put into roller mill two roll shop buildings, start the roller mill power supply, electrode is carried out the total length rolling one time, become the rolling electrode one time, it is characterized in that: a described rolling electrode is put into roller mill two roll shop buildings again and is carried out the part rolling, takes out electrode, becomes segmentation rolling electrode.
The present invention can also adopt following technical measures:
The preparation method of above-mentioned segmentation rolling electrode, be characterized in the operating process of segmentation rolling electrode, be according to required thickness of electrode size, regulate the distance between two rolls, a rolling electrode is carried out the part rolling, and rolling oppositely starts the roller mill power supply or strengthens roller gap to the size of Len req, electrode after the taking-up rolling becomes monolithic segmentation rolling electrode.
The preparation method of above-mentioned segmentation rolling electrode, being characterized in the operating process of segmentation rolling electrode, is according to required thickness of electrode size, configures the closure/opening time of roll seam, when closed a rolling electrode is carried out the part rolling, rolling is opened two roll seams, repeatable operation to the size of Len req, until finishing whole volume electrode, become described contiguous segmentation rolling electrode, cut contiguous segmentation rolling electrode, become monolithic segmentation rolling electrode.
The preparation method of above-mentioned segmentation rolling electrode, be characterized in segmentation rolling electrode not once more the length of rolling part be 50mm.
Advantage that the present invention has and good effect:
The preparation method of segmentation rolling electrode, owing to adopted the technical scheme of electrode segment rolling, can improve electrode and roll real density, can improve the electrode mechanical strength again, therefore guarantee initial volume under the prerequisite of intensity, but improved battery dressing amount, and technological operation is simple, with low cost, reliable product quality.
Description of drawings
Fig. 1 is the structural representation of the electrode of segmentation rolling of the present invention.
Label among the figure is respectively: a rolling electrode part 1, secondary rolling electrode part 2.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, enumerate following example now and be described in detail as follows:
Embodiment 1
With reference to accompanying drawing 1, the monolithic preparation method of segmentation rolling electrode, earlier electrode is cut out and divided the single hop electrode, separately continuous sheet, reach common density through conventional rolling electrode, become rolling electrode part 1 one time, lift roller function or reverse function possessing crawl, on the roller mill of diameter greater than 300mm, to rolling electrode according to the speed of rolls and single hop electrode length computing time, carry out rolling again, become secondary rolling electrode part 2, lift no longer rolling of initial part that roller or counter-rotating make a rolling electrode part 1 on time, electrode after the taking-up rolling becomes segmentation rolling electrode.
Embodiment 2
With reference to accompanying drawing 1, the continuous preparation method of segmentation rolling electrode, select for use diameter greater than 300mm, two roll seam 0-2mm are adjustable continuously, earlier electrode is rolled the actual arrival common density and become rolling electrode part 1 one time by normal rolling operation, utilize the computer programmable controller, automatically control roll milling train two rolls lifts the roller stroke, the speed of rolls, rolling length and rolling time, a rolling electrode is carried out rolling once more, become continuous, the continuous segmentation rolling electrode of one section secondary rolling electrode part 2 that Len req is arranged every rolling electrode of 50mm, cut rolling electrode 1 part of continuous segmentation rolling electrode, become segmentation rolling electrode.
Claims (4)
1. the preparation method of segmentation rolling electrode, electrode is put into roller mill two roll shop buildings, start the roller mill power supply, electrode is carried out the total length rolling one time, become the rolling electrode one time, it is characterized in that: a described rolling electrode is put into roller mill two roll shop buildings again and is carried out the part rolling, takes out electrode, becomes segmentation rolling electrode.
2. the preparation method of segmentation rolling electrode according to claim 1, it is characterized in that: the operating process of described segmentation rolling electrode is, according to required thickness of electrode size, regulate the distance between two rolls, a rolling electrode is carried out the part rolling, and rolling oppositely starts the roller mill power supply or strengthens roller gap to the size of Len req, electrode after the taking-up rolling becomes monolithic segmentation rolling electrode.
3. the preparation method of segmentation rolling electrode according to claim 1, it is characterized in that: the operating process of described segmentation rolling electrode is according to required thickness of electrode size, to configure the closure/opening time of roll seam, when closed a rolling electrode is carried out the part rolling, rolling is opened two roll seams, repeatable operation to the size of Len req, until finishing whole volume electrode, become described contiguous segmentation rolling electrode, cut contiguous segmentation rolling electrode, become monolithic segmentation rolling electrode.
4. according to the preparation method of claim 2 or 3 described segmentation rolling electrodes, it is characterized in that: described segmentation rolling electrode not once more the length of rolling part be 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101221592A CN1276529C (en) | 2003-12-29 | 2003-12-29 | Method for preparing sectionally rolled electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101221592A CN1276529C (en) | 2003-12-29 | 2003-12-29 | Method for preparing sectionally rolled electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1635646A true CN1635646A (en) | 2005-07-06 |
| CN1276529C CN1276529C (en) | 2006-09-20 |
Family
ID=34844415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101221592A Expired - Fee Related CN1276529C (en) | 2003-12-29 | 2003-12-29 | Method for preparing sectionally rolled electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1276529C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336297A (en) * | 2017-12-29 | 2018-07-27 | 惠州市纬世新能源有限公司 | A kind of method for preparing lithium ion battery pole pieces |
-
2003
- 2003-12-29 CN CNB2003101221592A patent/CN1276529C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336297A (en) * | 2017-12-29 | 2018-07-27 | 惠州市纬世新能源有限公司 | A kind of method for preparing lithium ion battery pole pieces |
| CN108336297B (en) * | 2017-12-29 | 2021-10-08 | 惠州市纬世新能源有限公司 | Preparation method of lithium ion battery pole piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1276529C (en) | 2006-09-20 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |