CN108963347A - A kind of preparation method of novel lithium battery - Google Patents

A kind of preparation method of novel lithium battery Download PDF

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Publication number
CN108963347A
CN108963347A CN201810669552.XA CN201810669552A CN108963347A CN 108963347 A CN108963347 A CN 108963347A CN 201810669552 A CN201810669552 A CN 201810669552A CN 108963347 A CN108963347 A CN 108963347A
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CN
China
Prior art keywords
preparation
lithium battery
raw material
novel lithium
storage
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.)
Pending
Application number
CN201810669552.XA
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Chinese (zh)
Inventor
周波
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Suzhou Yingnuoda Automation Technology Co Ltd
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Suzhou Yingnuoda Automation Technology Co Ltd
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Priority to CN201810669552.XA priority Critical patent/CN108963347A/en
Publication of CN108963347A publication Critical patent/CN108963347A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • H01M10/0587Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/04Processes of manufacture in general
    • H01M4/0402Methods of deposition of the material
    • H01M4/0404Methods of deposition of the material by coating on electrode collectors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a kind of preparation methods of novel lithium battery, comprising the following steps: 1) positive and negative anodes raw material prepares 2) ball milling 3) coating 4) winding 5) fluid injection 6) examine storage;By the above-mentioned means, preparation method of the present invention is simple, and it is easy to operate, it using scientific and reasonable chemical formulation in raw material preparation, then by ball milling, is coated with, winding, fluid injection can be improved the intensity of lithium battery, the long advantage of durability to storage is examined.

Description

A kind of preparation method of novel lithium battery
Technical field
The present invention relates to lithium battery preparation fields, more particularly to a kind of preparation method of novel lithium battery.
Background technique
Lithium battery becomes increasingly popular to be applied to people's daily life field, as technology development level is continuously improved, lithium Battery production technology also constantly improves, wherein it is most to material improvement, and it is fewer for the improvement of lithium battery preparation process, The preparation method of lithium battery is usually in the prior art: positive/negative plate is first made, upper diaphragm is then assigned among positive/negative plate, Then positive/negative plate is pressed, diaphragm is ranked up superposition or is wound into single core, and then Package casing, injects electrolyte, uses Aforesaid way produces battery core, although working efficiency is relatively high, is difficult to allow battery core discontinuity, and the capacity of heat transmission is poor, Over-voltage charging will cause lithium ion battery permanent damage, and service life cycle shortens.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of preparation methods of novel lithium battery, are able to solve existing lithium Defect present on battery preparation method.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of system of novel lithium battery is provided Preparation Method, comprising the following steps:
1) prepared by positive and negative anodes raw material: two iron of potassium dihydrogen phosphate and titanium dioxide is extracted respectively according to stoichiometric ratio 1:1, as anode Raw material, the cathode include chemical component and its proportion are as follows: carbon dust 35-45%, aluminium powder 15-20%, graphite powder 40-45%, while and Binder organic solvent is mixed, and dispersant is then added and stirs obtained raw material together;
2) ball milling: being put into addition copper powder wet ball grinding 15-20h in ball mill for raw material made from step 1),
3) be coated with: selection metal copper foil material wants uniform in color, and without obvious sags and crests and dark trace striped, even spread is put into temperature Pole piece is made to obtain for drying in 800-980 DEG C of drying oven in degree;
4) wind: pole piece is separated with diaphragm, positive and negative anodes winding up together, from core edge direction, the fully wrapped around anode of cathode;
5) fluid injection: step 4) battery core is injected into electrolyte, carries out hot composite closure processing.
6) it examines storage: before storage, certain electric current is given to the battery being equipped with first, then using profession Battery detecting instrument detects battery, and storage storage is vacuum-packed without misuse in detection.
In a preferred embodiment of the present invention, the dispersing agent described in step 1) be by dehydrated alcohol, titanate and Polyacrylate mixing composition.
In a preferred embodiment of the present invention, the binder described in step 1) is ethyl acetate rubber.
In a preferred embodiment of the present invention, 500 revolving speeds of ball mill/min described in step 2.
In a preferred embodiment of the present invention, the drying oven described in step 3) dries 55-65min.
The beneficial effects of the present invention are: a kind of preparation method of novel lithium battery of the present invention, preparation method is simple, easy to operate, It using scientific and reasonable chemical formulation in raw material preparation, then by ball milling, is coated with, winding, fluid injection, can to storage is examined Improve the intensity of lithium battery, the long advantage of durability.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
The embodiment of the present invention includes:
Embodiment 1
A kind of preparation method of novel lithium battery, comprising the following steps:
1) prepared by positive and negative anodes raw material: two iron of potassium dihydrogen phosphate and titanium dioxide is extracted respectively according to stoichiometric ratio 1:1, as anode Raw material, the cathode include chemical component and its proportion are as follows: carbon dust 35%, aluminium powder 15%, graphite powder 40%, while having with binder Solvent is mixed, and dispersant is then added and stirs obtained raw material together;The dispersing agent be by dehydrated alcohol, Titanate and polyacrylate mixing composition;The binder is ethyl acetate rubber;
2) raw material made from step 1) ball milling: is put into addition copper powder wet ball grinding 15h in ball mill;500 turns of the ball mill Speed/min;
3) be coated with: selection metal copper foil material wants uniform in color, and without obvious sags and crests and dark trace striped, even spread is put into temperature Pole piece is made to obtain for drying in 800 DEG C of drying ovens in degree;The drying oven described in step 3) dries 55min.
4) it winds: pole piece being separated with diaphragm, together, from core edge direction, cathode is fully wrapped around just for positive and negative anodes winding up Pole;
5) fluid injection: step 4) battery core is injected into electrolyte, carries out hot composite closure processing.
6) it examines storage: before storage, certain electric current is given to the battery being equipped with first, then using profession Battery detecting instrument detects battery, and storage storage is vacuum-packed without misuse in detection.
Embodiment 2
A kind of preparation method of novel lithium battery, comprising the following steps:
1) prepared by positive and negative anodes raw material: two iron of potassium dihydrogen phosphate and titanium dioxide is extracted respectively according to stoichiometric ratio 1:1, as anode Raw material, the cathode include chemical component and its proportion are as follows: carbon dust 45%, aluminium powder 20%, graphite powder 45%, while having with binder Solvent is mixed, and dispersant is then added and stirs obtained raw material together;The dispersing agent be by dehydrated alcohol, Titanate and polyacrylate mixing composition;The binder is ethyl acetate rubber;
2) raw material made from step 1) ball milling: is put into addition copper powder wet ball grinding 15-20h in ball mill;The ball mill 500 Revolving speed/min;
3) be coated with: selection metal copper foil material wants uniform in color, and without obvious sags and crests and dark trace striped, even spread is put into temperature Pole piece is made to obtain for drying in 980 DEG C of drying ovens in degree;The drying oven described in step 3) dries 65min.
4) it winds: pole piece being separated with diaphragm, together, from core edge direction, cathode is fully wrapped around just for positive and negative anodes winding up Pole;
5) fluid injection: step 4) battery core is injected into electrolyte, carries out hot composite closure processing.
6) it examines storage: before storage, certain electric current is given to the battery being equipped with first, then using profession Battery detecting instrument detects battery, and storage storage is vacuum-packed without misuse in detection.
A kind of preparation method of novel lithium battery of the present invention, preparation method is simple, easy to operate, uses in raw material preparation Scientific and reasonable chemical formulation is coated with then by ball milling, winding, and fluid injection can be improved the strong of lithium battery to storage is examined Degree, the long advantage of durability.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks Domain is included within the scope of the present invention.

Claims (5)

1. a kind of preparation method of novel lithium battery, which comprises the following steps:
1) prepared by positive and negative anodes raw material: two iron of potassium dihydrogen phosphate and titanium dioxide is extracted respectively according to stoichiometric ratio 1:1, as anode Raw material, the cathode include chemical component and its proportion are as follows: carbon dust 35-45%, aluminium powder 15-20%, graphite powder 40-45%, while and Binder organic solvent is mixed, and dispersant is then added and stirs obtained raw material together;
2) ball milling: being put into addition copper powder wet ball grinding 15-20h in ball mill for raw material made from step 1),
3) be coated with: selection metal copper foil material wants uniform in color, and without obvious sags and crests and dark trace striped, even spread is put into temperature Pole piece is made to obtain for drying in 800-980 DEG C of drying oven in degree;
4) wind: pole piece is separated with diaphragm, positive and negative anodes winding up together, from core edge direction, the fully wrapped around anode of cathode;
5) fluid injection: step 4) battery core is injected into electrolyte, carries out hot composite closure processing;
6) it examines storage: before storage, certain electric current is given to the battery being equipped with first, then using the battery of profession Detecting instrument detects battery, and storage storage is vacuum-packed without misuse in detection.
2. the preparation method of novel lithium battery according to claim 1, which is characterized in that the dispersing agent described in step 1) To be made of the mixing of dehydrated alcohol, titanate and polyacrylate.
3. the preparation method of novel lithium battery according to claim 1, which is characterized in that the binder described in step 1) For ethyl acetate rubber.
4. the preparation method of novel lithium battery according to claim 1, which is characterized in that the ball mill described in step 2 500 revolving speeds/min.
5. the preparation method of novel lithium battery according to claim 1, which is characterized in that dry baking oven described in the step 3) Dry 55-65min.
CN201810669552.XA 2018-06-26 2018-06-26 A kind of preparation method of novel lithium battery Pending CN108963347A (en)

Priority Applications (1)

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CN201810669552.XA CN108963347A (en) 2018-06-26 2018-06-26 A kind of preparation method of novel lithium battery

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103378372A (en) * 2012-04-28 2013-10-30 深圳拓邦股份有限公司 Method for placing and aging lithium ion battery
CN103390780A (en) * 2013-08-15 2013-11-13 刘洪� Environment-friendly iron phosphate magnesium lithium battery and preparation method thereof
CN104900921A (en) * 2015-04-03 2015-09-09 深圳市博力康电池有限公司 Technology for producing high magnification power cylinder lithium ion battery
CN106328938A (en) * 2015-06-17 2017-01-11 深圳市沃特玛电池有限公司 Low-temperature lithium iron phosphate battery and preparation method
CN107732316A (en) * 2017-10-25 2018-02-23 苏州英诺达自动化科技有限公司 The production technology of lithium battery
CN107768596A (en) * 2017-10-25 2018-03-06 苏州英诺达自动化科技有限公司 Lithium battery production technology high in machining efficiency

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103378372A (en) * 2012-04-28 2013-10-30 深圳拓邦股份有限公司 Method for placing and aging lithium ion battery
CN103390780A (en) * 2013-08-15 2013-11-13 刘洪� Environment-friendly iron phosphate magnesium lithium battery and preparation method thereof
CN104900921A (en) * 2015-04-03 2015-09-09 深圳市博力康电池有限公司 Technology for producing high magnification power cylinder lithium ion battery
CN106328938A (en) * 2015-06-17 2017-01-11 深圳市沃特玛电池有限公司 Low-temperature lithium iron phosphate battery and preparation method
CN107732316A (en) * 2017-10-25 2018-02-23 苏州英诺达自动化科技有限公司 The production technology of lithium battery
CN107768596A (en) * 2017-10-25 2018-03-06 苏州英诺达自动化科技有限公司 Lithium battery production technology high in machining efficiency

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Application publication date: 20181207