CN102347479A - Method and device for processing electrolytic manganese dioxide for lithium ion batteries - Google Patents
Method and device for processing electrolytic manganese dioxide for lithium ion batteries Download PDFInfo
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- CN102347479A CN102347479A CN2010102461767A CN201010246176A CN102347479A CN 102347479 A CN102347479 A CN 102347479A CN 2010102461767 A CN2010102461767 A CN 2010102461767A CN 201010246176 A CN201010246176 A CN 201010246176A CN 102347479 A CN102347479 A CN 102347479A
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- manganese dioxide
- lithium ion
- electrolytic manganese
- grader
- ball mill
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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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Abstract
The invention discloses a method and a device for processing electrolytic manganese dioxide (EMD) for lithium ion batteries. The method comprises the following steps: (1) neutralizing electrolytic manganese dioxide with ammonia; (2) washing the neutralized manganese dioxide, drying with 80 DEG C hot air until the water content is less than 1 %; and (3) crushing the washed manganese dioxide with ball milling. Using ammonia for neutralization can reduce the content of sodium salt in EMD, and by using a ball mill to replace a Raymond mill, the particle appearance is improved, and particle size distribution is reasonable. The device is characterized in that: a feeding bin is connected with a crusher through a feed screw, the crusher is connected with two classifiers, a bottom discharge port of the first-class classifier is connected with the crusher, a top discharge port of the first-class classifier is connected with the second-class classifier, the lower end of the second-class classifier is provided with a product discharge port, and the crusher is a ball mill. The processed particles has sleek edges, regular appearance, uniform particle size distribution, and little harmful impurities.
Description
Technical field
The present invention relates to a kind of inorganic materials technology and device, specifically be meant the electrolytic manganese dioxide production technology and the device of special purpose.
Background technology
Electrolytic manganese dioxide (EMD) is used to process lithium cell anode material lithium manganate.The technology of producing at present MED is, NaOH neutralization, washing, that Raymond mill is pulverized granularity is qualified.There are a lot of problems in this method, and is irregular like granule-morphology, and particle size distribution is improper, objectionable impurities (like sodium salt) too high levels etc.
Summary of the invention
The technical problem that the present invention will solve is to overcome existing defective, and following technical scheme is provided:
A kind of method of processing lithium ion battery with electrolytic manganese dioxide comprises the steps:
(1) with in the ammonia with electrolysis after manganese dioxide;
(2) manganese dioxide after the above-mentioned neutralization of washing is lower than 1% with 80 ℃ of heated-air drying to moistures;
(3) manganese dioxide after the above-mentioned washing of ball mill grinding.
Can reduce sodium salt content among the EMD with the ammonia neutralization, pulverize the replacement Raymond mill with ball mill and pulverize to improve granule-morphology, to reach reasonably particle size distribution.
One cover processing lithium ion battery is with the device of electrolytic manganese dioxide; Feeding warehouse is connected with pulverizer (ball mill); Pulverizer is connected with the two-stage grader, and one-level grader lower discharge port is connected with pulverizer, and one-level grader top discharge mouth is connected with the secondary grader; Outlet for product is established in secondary grader lower end, and said pulverizer is a ball mill.
Further, said feeding warehouse is connected with pulverizer through feed screw.
The discharging opening of the upper end of said secondary grader is connected with the whirlwind collector.
Material metering after the coarse crushing is after feeding warehouse gets into ball mill; According to desired particle size distribution requirement, set the ball mill rotation time and pulverize, after reaching desired particle size and distributing; Open subordinate machine system; Material after the pulverizing carries out thickness in the one-level grader separates, and coarse fodder is got back to ball mill through lower discharge port through pipeline and continued to pulverize, and the satisfactory material of granularity gets into the secondary grader through grading wheel; The finished product material receives through secondary grader discharging opening, and fines is received in rotoclone collector.
Grain graininess edge after technology of the present invention and apparatus processes is slick and sly, the pattern rule, and even particle size distribution, objectionable impurities content is low.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is that the present invention pulverizes the structural representation of lithium ion battery with the device of electrolytic manganese dioxide;
Fig. 2 is the ESEM collection of illustrative plates of the product of raymond grinding powder processing;
Fig. 3 is the ESEM collection of illustrative plates of the product of ball mill grinding processing.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Embodiment 1
A kind of method of processing lithium ion battery with electrolytic manganese dioxide comprises the steps:
(1) with in the ammonia with electrolysis after manganese dioxide;
(2) the manganese dioxide usefulness after the above-mentioned neutralization of washing, 80 ℃ of heated-air drying to moistures are lower than 1%;
(3) manganese dioxide after the above-mentioned washing of ball mill grinding.
Can reduce sodium salt content among the EMD with the ammonia neutralization.Like Fig. 2, shown in Figure 3, pulverize the pulverizing of replacement Raymond mill with ball mill and can improve granule-morphology, reach reasonably particle size distribution.
As shown in Figure 1; A kind of device of processing lithium ion battery with electrolytic manganese dioxide; Feeding warehouse 1 is connected with ball mill 3 through feed screw 2; Ball mill 3 is connected with the two-stage grader, and one-level grader 4 lower discharge ports are connected with ball mill 3, and one-level grader 4 top discharge mouths are connected with secondary grader 5; Outlet for product is established in secondary grader 5 lower ends, and the discharging opening of the upper end of secondary grader 5 is connected with whirlwind collector 6; Discharging opening is established in whirlwind collector 6 lower ends, and the upper end is connected with bag collection storehouse 7, and bag collection storehouse 7 is connected with induced draft fan 8.
Material metering after the coarse crushing is after feeding warehouse gets into ball mill; According to desired particle size distribution requirement, set the ball mill rotation time and pulverize, after reaching desired particle size and distributing; Open subordinate machine system; Material after the pulverizing carries out thickness in the one-level grader separates, and coarse fodder is got back to ball mill through lower discharge port through pipeline and continued to pulverize, and the satisfactory material of granularity gets into the secondary grader through grading wheel; The finished product material receives through secondary grader discharging opening, and fines is received in rotoclone collector; The air that is mingled with a small amount of fines purifies through bagroom, discharges through induced draft fan at last.
What should explain at last is: the above is merely the preferred embodiments of the present invention; Be not limited to the present invention; Although the present invention has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a method of processing lithium ion battery with electrolytic manganese dioxide comprises the steps:
(1) with in the ammonia with electrolysis after manganese dioxide;
(2) manganese dioxide after the above-mentioned neutralization of washing is lower than 1% with 80 ℃ of heated-air drying to moistures;
(3) manganese dioxide after the above-mentioned washing of ball mill grinding.
2. device of processing lithium ion battery with electrolytic manganese dioxide; It is characterized in that: feeding warehouse is connected with pulverizer; Pulverizer is connected with the two-stage grader, and one-level grader lower discharge port is connected with pulverizer, and one-level grader top discharge mouth is connected with the secondary grader; Outlet for product is established in secondary grader lower end, and said pulverizer is a ball mill.
3. processing lithium ion battery according to claim 2 is characterized in that with the device of electrolytic manganese dioxide: said feeding warehouse is connected with pulverizer through feed screw.
4. processing lithium ion battery according to claim 2 is characterized in that with the device of electrolytic manganese dioxide: the discharging opening of the upper end of said secondary grader is connected with the whirlwind collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102461767A CN102347479A (en) | 2010-08-06 | 2010-08-06 | Method and device for processing electrolytic manganese dioxide for lithium ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102461767A CN102347479A (en) | 2010-08-06 | 2010-08-06 | Method and device for processing electrolytic manganese dioxide for lithium ion batteries |
Publications (1)
| Publication Number | Publication Date |
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| CN102347479A true CN102347479A (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010102461767A Pending CN102347479A (en) | 2010-08-06 | 2010-08-06 | Method and device for processing electrolytic manganese dioxide for lithium ion batteries |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183838A (en) * | 2013-05-22 | 2014-12-03 | 无锡晶石新型能源有限公司 | Device and method for purifying electrolytic manganese dioxide |
| US20150298989A1 (en) * | 2014-04-21 | 2015-10-22 | Erachem Comilog, Inc. | Method of producing electrolytic manganese dioxide with high compact density and electrolytic manganese dioxide produced therefrom |
| CN105521856A (en) * | 2016-02-19 | 2016-04-27 | 湖南升华科技股份有限公司 | Sanding device and method using zirconium balls in different sizes |
| CN113171851A (en) * | 2021-04-20 | 2021-07-27 | 广西下田锰矿有限责任公司 | Preparation method and preparation device of electrolytic manganese dioxide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305237A (en) * | 1999-11-30 | 2001-07-25 | 日本电气株式会社 | Lithium manganese composite oxide and non-aqueous electrolytic solution secondary battery using the same |
| CN1639890A (en) * | 2002-03-08 | 2005-07-13 | 吉莱特公司 | Improved manganese dioxide for alkaline cells |
| WO2010004718A1 (en) * | 2008-07-09 | 2010-01-14 | パナソニック株式会社 | Electrolytic manganese dioxide for lithium primary battery, manufacturing method therefor, and lithium primary battery using same |
-
2010
- 2010-08-06 CN CN2010102461767A patent/CN102347479A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305237A (en) * | 1999-11-30 | 2001-07-25 | 日本电气株式会社 | Lithium manganese composite oxide and non-aqueous electrolytic solution secondary battery using the same |
| CN1639890A (en) * | 2002-03-08 | 2005-07-13 | 吉莱特公司 | Improved manganese dioxide for alkaline cells |
| WO2010004718A1 (en) * | 2008-07-09 | 2010-01-14 | パナソニック株式会社 | Electrolytic manganese dioxide for lithium primary battery, manufacturing method therefor, and lithium primary battery using same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183838A (en) * | 2013-05-22 | 2014-12-03 | 无锡晶石新型能源有限公司 | Device and method for purifying electrolytic manganese dioxide |
| CN104183838B (en) * | 2013-05-22 | 2017-02-08 | 无锡晶石新型能源有限公司 | Device and method for purifying electrolytic manganese dioxide |
| US20150298989A1 (en) * | 2014-04-21 | 2015-10-22 | Erachem Comilog, Inc. | Method of producing electrolytic manganese dioxide with high compact density and electrolytic manganese dioxide produced therefrom |
| US10099940B2 (en) * | 2014-04-21 | 2018-10-16 | Prince Erachem Inc. | Method of producing electrolytic manganese dioxide with high compact density and electrolytic manganese dioxide produced therefrom |
| CN105521856A (en) * | 2016-02-19 | 2016-04-27 | 湖南升华科技股份有限公司 | Sanding device and method using zirconium balls in different sizes |
| CN113171851A (en) * | 2021-04-20 | 2021-07-27 | 广西下田锰矿有限责任公司 | Preparation method and preparation device of electrolytic manganese dioxide |
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Application publication date: 20120208 |