CN106654174A - Cylinder lithium ion battery electrical core material and preparation method thereof - Google Patents
Cylinder lithium ion battery electrical core material and preparation method thereof Download PDFInfo
- Publication number
- CN106654174A CN106654174A CN201510440151.3A CN201510440151A CN106654174A CN 106654174 A CN106654174 A CN 106654174A CN 201510440151 A CN201510440151 A CN 201510440151A CN 106654174 A CN106654174 A CN 106654174A
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- CN
- China
- Prior art keywords
- carbon fiber
- positive
- lithium ion
- ion battery
- plate
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Classifications
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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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
Abstract
The invention discloses a cylinder lithium ion battery electrical core material. The cylinder lithium ion battery electrical core material comprises a positive plate, a negative plate, a diaphragm and an external package; the positive plate is formed by a positive pole active paint and a double-face carbon fiber paper; the negative plate is composed of a copper foil matrix, a negative pole active paint and a carbon fiber layer; and the preparation method comprises the following steps: 1) preparing the positive plate and the negative plate, 2) rolling, 3) packaging, and 4) performing pre-charging activation. According to the cylinder lithium ion battery electrical core material, the production steps are simplified, a layer of carbon fiber layer is arranged on the negative pole, makes contact with an electrolyte in the cylinder lithium ion battery, a layer of silicon carbide is easily deposited on the surface, dendrite and diaphragm can be better protected, and battery accident generation possibility is reduced; furtherly, the double face carbon fiber paper is directly coated with the positive pole active paint; the material grabbing effect of the positive pole active paint is increased, which is in favor of consistency of the surface of the positive plate after anaphase rolling.
Description
Technical field
The present invention relates to a kind of battery production technology, more particularly to a kind of cylindrical lithium ion battery core material and preparation method, belong to technical field of lithium ion.
Background technology
Cylindrical lithium ion battery is divided into LiFePO4, cobalt acid lithium, LiMn2O4, the mixing of cobalt manganese, ternary material difference system, and shell is divided into two kinds of box hat and polymer, and different materials system battery has the advantages that different；It is main based on box hat cylinder ferric phosphate lithium cell in prior art, lithium iron battery shows as safety in the charge-discharge performance that capacity is high, output voltage is high, good, output voltage stabilization, energy heavy-current discharge, electrochemically stable performance, use, burning will not be caused because of misoperations such as overcharge, overdischarge and short circuits or exploded, it is operating temperature range width, environmentally friendly；It is widely used on solar energy lamp, lamp for lawn, the standby energy, electric tool, toy models；Existing cylindrical lithium ion cell core comparision of production is ripe, but it does not solve the problems, such as well negative pole dendrite to diaphragm breakup, while positive electrode surface rule degree is also than relatively low.
The content of the invention
（One）The technical problem to be solved
To solve the above problems, the present invention proposes a kind of cylindrical lithium ion battery core material and preparation method, ensure that dendrite is reversible, and will not destroy barrier film, simplifies production stage, and ensures positive plate surface conformance.
（Two）Technical scheme
The cylindrical lithium ion battery core material of the present invention, including positive plate, negative plate, barrier film and external packing；The positive plate is made up of positive-active coating and two-sided carbon fiber paper；The negative plate is made up of Copper Foil matrix, negative electrode active coating and carbon fiber layer.
Further, the positive-active coating is by weight percentages：Phase carbosphere 85%, graphite 5% and vinylidene 10% are constituted；The negative electrode active coating is by weight percentages：LiMn2O4 85%, conductive agent 8% and binding agent 7% are constituted.
The preparation method of the cylindrical lithium ion battery battery core；, comprise the steps：
It is prepared by the first step, positive plate and negative plate, by the way that positive-active coating is coated on two-sided carbon fiber paper according to thickness requirement, and dried, roller system and snip；By the way that negative electrode active coating is coated on Copper Foil matrix according to thickness requirement, and it is carried out to enclose a carbon fiber layer；The carbon fiber layer is less than the 12/1 of paint thickness, and dried, roller system and snip；
Second step, rolls, and first passes through positive plate and negative plate that barrier film makes respectively to the first step and rolls, and will then complete the positive plate that rolls and negative plate rolls into a battery core bodies；
3rd step, packaging, is then put into the battery core bodies that second step is completed in external packing, and carries out dispensing encapsulation process and internal resistance measurement；
4th step, carries out preliminary filling activation.
Beneficial effect
Compared with prior art; the cylindrical lithium ion battery core material of the present invention; simplify production stage; and one layer of carbon fiber layer is arranged to negative pole; and its with column lithium ion battery inside electrolyte contacts; its surface is easy to deposit one layer of carborundum, can well protect dendrite and barrier film, extends product service life；Reduce the possibility that battery accident occurs；In addition directly by positive-active coating by being coated on two-sided carbon fiber paper；Improve positive-active coating material grasping effect, after being conducive to later stage roller system, the uniformity on positive plate surface.
Specific embodiment
Cylindrical lithium ion battery core material, including positive plate, negative plate, barrier film and external packing；The positive plate is made up of positive-active coating and two-sided carbon fiber paper；The negative plate is made up of Copper Foil matrix, negative electrode active coating and carbon fiber layer.
Further, the positive-active coating is by weight percentages：Phase carbosphere 85%, graphite 5% and vinylidene 10% are constituted；The negative electrode active coating is by weight percentages：LiMn2O4 85%, conductive agent 8% and binding agent 7% are constituted.
The preparation method of the cylindrical lithium ion battery battery core；, comprise the steps：
It is prepared by the first step, positive plate and negative plate, by the way that positive-active coating is coated on two-sided carbon fiber paper according to thickness requirement, and dried, roller system and snip；By the way that negative electrode active coating is coated on Copper Foil matrix according to thickness requirement, and it is carried out to enclose a carbon fiber layer；The carbon fiber layer is less than the 12/1 of paint thickness, and dried, roller system and snip；
Second step, rolls, and first passes through positive plate and negative plate that barrier film makes respectively to the first step and rolls, and will then complete the positive plate that rolls and negative plate rolls into a battery core bodies；
3rd step, packaging, is then put into the battery core bodies that second step is completed in external packing, and carries out dispensing encapsulation process and internal resistance measurement；
4th step, carries out preliminary filling activation.
The cylindrical lithium ion battery core material of the present invention, simplify production stage, and one layer of carbon fiber layer be set to negative pole, and its with column lithium ion battery inside electrolyte contacts, its surface is easy to deposit one layer of carborundum, causes lithium metal to be difficult to be deposited on lithium layer or Copper Foil matrix surface；But lithium metal is deposited in the internal void of carbon fiber layer, dendrite and barrier film can be well protected, extend product service life；Reduce the possibility that battery accident occurs；In addition directly by positive-active coating by being coated on two-sided carbon fiber paper；Improve positive-active coating material grasping effect, after being conducive to later stage roller system, the uniformity on positive plate surface.
Embodiment described above is only that the preferred embodiment of the present invention is described, and not the spirit and scope of the present invention are defined.On the premise of without departing from design concept of the present invention; various modifications and improvement that this area ordinary person makes to technical scheme; protection scope of the present invention all should be dropped into, the technology contents that the present invention is claimed all have been recorded in detail in the claims.
Claims (3)
1. a kind of cylindrical lithium ion battery core material, including positive plate, negative plate, barrier film and external packing；It is characterized in that：The positive plate is made up of positive-active coating and two-sided carbon fiber paper；The negative plate is made up of Copper Foil matrix, negative electrode active coating and carbon fiber layer.
2. cylindrical lithium ion battery core material according to claim 1, it is characterised in that：The positive-active coating is by weight percentages：Phase carbosphere 85%, graphite 5% and vinylidene 10% are constituted；The negative electrode active coating is by weight percentages：LiMn2O4 85%, conductive agent 8% and binding agent 7% are constituted.
3. cylindrical lithium ion battery method for making electric core；It is characterized in that：Methods described comprises the steps：
It is prepared by the first step, positive plate and negative plate, by the way that positive-active coating is coated on two-sided carbon fiber paper according to thickness requirement, and dried, roller system and snip；By the way that negative electrode active coating is coated on Copper Foil matrix according to thickness requirement, and it is carried out to enclose a carbon fiber layer；The carbon fiber layer is less than the 12/1 of paint thickness, and dried, roller system and snip；
Second step, rolls, and first passes through positive plate and negative plate that barrier film makes respectively to the first step and rolls, and will then complete the positive plate that rolls and negative plate rolls into a battery core bodies；
3rd step, packaging, is then put into the battery core bodies that second step is completed in external packing, and carries out dispensing encapsulation process and internal resistance measurement；
4th step, carries out preliminary filling activation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440151.3A CN106654174A (en) | 2015-07-24 | 2015-07-24 | Cylinder lithium ion battery electrical core material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440151.3A CN106654174A (en) | 2015-07-24 | 2015-07-24 | Cylinder lithium ion battery electrical core material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654174A true CN106654174A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510440151.3A Pending CN106654174A (en) | 2015-07-24 | 2015-07-24 | Cylinder lithium ion battery electrical core material and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463051A (en) * | 2002-05-30 | 2003-12-24 | 株式会社小原 | Lithium ion secondary cell |
| CN2770107Y (en) * | 2004-09-01 | 2006-04-05 | 哈尔滨光宇电源股份有限公司 | Lithium ion secondary battery |
| CN103125038A (en) * | 2010-09-22 | 2013-05-29 | 原子能与替代能源委员会 | Electrode for lithium batteries and its method of manufacture |
| US20140106215A1 (en) * | 2012-10-12 | 2014-04-17 | Ut-Battelle, Llc | High energy density secondary lithium batteries |
-
2015
- 2015-07-24 CN CN201510440151.3A patent/CN106654174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1463051A (en) * | 2002-05-30 | 2003-12-24 | 株式会社小原 | Lithium ion secondary cell |
| CN2770107Y (en) * | 2004-09-01 | 2006-04-05 | 哈尔滨光宇电源股份有限公司 | Lithium ion secondary battery |
| CN103125038A (en) * | 2010-09-22 | 2013-05-29 | 原子能与替代能源委员会 | Electrode for lithium batteries and its method of manufacture |
| US20140106215A1 (en) * | 2012-10-12 | 2014-04-17 | Ut-Battelle, Llc | High energy density secondary lithium batteries |
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Application publication date: 20170510 |