CN103647079A - Carboxymethyl cellulose modified graphite preparation method - Google Patents
Carboxymethyl cellulose modified graphite preparation method Download PDFInfo
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- CN103647079A CN103647079A CN201310568608.XA CN201310568608A CN103647079A CN 103647079 A CN103647079 A CN 103647079A CN 201310568608 A CN201310568608 A CN 201310568608A CN 103647079 A CN103647079 A CN 103647079A
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- carboxymethyl cellulose
- graphite
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- mixture
- preparation
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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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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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
- H01M4/62—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 provides a carboxymethyl cellulose modified graphite preparation method, which belongs to the chemical cell preparation field. The method comprises the following steps: uniformly mixing carboxymethyl cellulose and natural graphite in proportion, drying, and charing to obtain the carboxymethyl cellulose modified graphite. The carboxymethyl cellulose pyrolyzed charcoal has good cladding effect to natural graphite, can effectively prevent the layered spalling phenomenon generated in a charge and discharge process, thereby the cycle stability of the composite charcoal materials can be effectively increased. The reversible capacity of the prepared modified graphite is 310.9 mAh.g<-1> after 50 times of circulation, which is 50 mAh.g<-1> higher than that of the natural graphite, and the reversible capacity with 97.1% is kept at first time.
Description
Technical field
The invention belongs to chemical cell preparation field, relate in particular to a kind of preparation method of Modified by Carboxymethyl Cellulose graphite.
Background technology
In recent years, along with oil, gas extraction with use in a large number and the development of automobile industry, the non-renewable of the resources such as oil paid close attention to day by day widely.People pay attention to increasingly to problems such as urban air-quality and the crises of earth petroleum resources, protection of the environment, and the cry of energy savings is increasingly surging, impels people to pay much attention to the development and utilization of new forms of energy.Lithium ion battery is considered to hybrid-electric car and the very promising new forms of energy of portable electric appts owing to having long cycle life and high energy density.Graphite is as current business-like lithium ion battery negative material, low price, Heat stability is good, environmental friendliness; But because the embedding lithium current potential of graphite is lower, easily cause the decomposition of electrolyte and separating out of dendrite lithium, cause a series of safety problem.
Therefore development of new carbon-based negative electrode material has very important meaning.
Summary of the invention
A preparation method for Modified by Carboxymethyl Cellulose graphite, is characterized in that comprising the following steps:
(1) after carboxymethyl cellulose and native graphite are mixed in proportion, be dissolved in deionized water, obtain solution A;
(2) solution A is added to thermal agitation, until solution is transformed into gelatinous mixture A;
(3) by mixture A 105-120 ℃ of oven dry, obtain mixture B;
(4) mixture B charing at 700～900 ℃ is processed 4～6 hours, after sintering, being crushed to particle diameter is 200 ~ 300 orders, obtains described Modified by Carboxymethyl Cellulose graphite;
Wherein, the charing in described step (4) is treated under blanket of nitrogen and carries out.
Preferably, the carboxymethyl cellulose described in step (1) and native graphite are according to (0.02 ~ 0.05): 1 mass ratio mixes.
Preferably, the thermal agitation that adds described in step (2) comprises following content: solution A is carried out at 75 ~ 85 ℃ to magnetic agitation.
Beneficial effect of the present invention is as follows:
Utilize preparation method provided by the invention, by carboxymethyl cellulose and native graphite after treatment, the modified graphite making can be used for lithium cell cathode material; Method provided by the invention, carboxymethyl cellulose cracking charcoal has good coating function to native graphite, and can effectively stop graphite that stratiform peeling phenomenon occurs in charge and discharge process, thereby effectively improve the cyclical stability of carbon composite, the modified graphite making is 310.9 mAh.g-1 at the reversible capacity after 50 times that circulates, than high 50 mAh.g-1 of native graphite, and kept 97.1% of reversible capacity first.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
embodiment 1
A preparation method for Modified by Carboxymethyl Cellulose graphite, comprises the following steps:
(1) after carboxymethyl cellulose and native graphite are mixed by the mass ratio of 0.02:1, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out at 75 ~ 80 ℃ to magnetic agitation, until solution is transformed into gelatinous mixture A;
(3) by mixture A 105-110 ℃ of oven dry, obtain mixture B;
(4) mixture B charing at 700～800 ℃ is processed to (charing is treated under blanket of nitrogen and carries out) 4～6 hours, after sintering, being crushed to particle diameter is 200 ~ 300 orders, obtains described Modified by Carboxymethyl Cellulose graphite.
embodiment 2
A preparation method for Modified by Carboxymethyl Cellulose graphite, comprises the following steps:
(1) after carboxymethyl cellulose and native graphite are mixed by the mass ratio of 0.05:1, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out at 80 ~ 85 ℃ to magnetic agitation, until solution is transformed into gelatinous mixture A;
(3) by mixture A 110-120 ℃ of oven dry, obtain mixture B;
(4) mixture B charing at 800～900 ℃ is processed to (charing is treated under blanket of nitrogen and carries out) 4～6 hours, after sintering, being crushed to particle diameter is 200 ~ 300 orders, obtains described Modified by Carboxymethyl Cellulose graphite.
embodiment 3
A preparation method for Modified by Carboxymethyl Cellulose graphite, comprises the following steps:
(1) after carboxymethyl cellulose and native graphite are mixed by the mass ratio of 0.03:1, be dissolved in deionized water, obtain solution A;
(2) solution A is carried out at 80 ~ 82 ℃ to magnetic agitation, until solution is transformed into gelatinous mixture A;
(3) by mixture A 110-115 ℃ of oven dry, obtain mixture B;
(4) mixture B charing at 800～8500 ℃ is processed to (charing is treated under blanket of nitrogen and carries out) 4～6 hours, after sintering, being crushed to particle diameter is 200 ~ 300 orders, obtains described Modified by Carboxymethyl Cellulose graphite.
Claims (3)
1. a preparation method for Modified by Carboxymethyl Cellulose graphite, is characterized in that comprising the following steps:
(1) after carboxymethyl cellulose and native graphite are mixed in proportion, be dissolved in deionized water, obtain solution A;
(2) solution A is added to thermal agitation, until solution is transformed into gelatinous mixture A;
(3) by mixture A 105-120 ℃ of oven dry, obtain mixture B;
(4) mixture B charing at 700～900 ℃ is processed 4～6 hours, after sintering, being crushed to particle diameter is 200 ~ 300 orders, obtains described Modified by Carboxymethyl Cellulose graphite;
Wherein, the charing in described step (4) is treated under blanket of nitrogen and carries out.
2. the preparation method of Modified by Carboxymethyl Cellulose graphite according to claim 1, is characterized in that, the carboxymethyl cellulose described in step (1) and native graphite are according to (0.02 ~ 0.05): 1 mass ratio mixes.
3. the preparation method of Modified by Carboxymethyl Cellulose graphite according to claim 1, is characterized in that, the thermal agitation that adds described in step (2) comprises following content: solution A is carried out at 75 ~ 85 ℃ to magnetic agitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568608.XA CN103647079B (en) | 2013-11-15 | 2013-11-15 | The preparation method of Modified by Carboxymethyl Cellulose graphite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568608.XA CN103647079B (en) | 2013-11-15 | 2013-11-15 | The preparation method of Modified by Carboxymethyl Cellulose graphite |
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| CN103647079A true CN103647079A (en) | 2014-03-19 |
| CN103647079B CN103647079B (en) | 2015-11-25 |
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| CN201310568608.XA Expired - Fee Related CN103647079B (en) | 2013-11-15 | 2013-11-15 | The preparation method of Modified by Carboxymethyl Cellulose graphite |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852013A (en) * | 2015-03-17 | 2015-08-19 | 中国科学院广州能源研究所 | Preparation method of three-dimensional electrode slice based on aqueous adhesive |
| CN106279808A (en) * | 2016-08-30 | 2017-01-04 | 安徽蓝德集团股份有限公司 | A kind of marine communication cable material with excellent mechanical performance |
| CN106644935A (en) * | 2017-03-02 | 2017-05-10 | 天津市捷威动力工业有限公司 | Method and apparatus for measuring bonding force between graphite and binder of negative electrode of lithium battery |
| CN112670463A (en) * | 2020-04-16 | 2021-04-16 | 宁波杉杉新材料科技有限公司 | Graphite negative electrode material and preparation method and application thereof |
| CN115020633A (en) * | 2022-05-30 | 2022-09-06 | 惠州市豪鹏科技有限公司 | Battery negative plate preparation method, battery negative plate and battery thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6344235B1 (en) * | 1997-05-27 | 2002-02-05 | Tdk Corporation | Method of producing an electrode for non-aqueous electrolytic cells |
| CN1697215A (en) * | 2005-05-27 | 2005-11-16 | 深圳市贝特瑞电子材料有限公司 | Cathode material of composite carbon in use for lithium ion battery and preparation method |
| CN101212042A (en) * | 2006-12-31 | 2008-07-02 | 比亚迪股份有限公司 | Method for encapsulating active material for negative pole of Li-ion secondary battery |
| CN102148355A (en) * | 2011-03-03 | 2011-08-10 | 江西正拓新能源科技有限公司 | Cathode material for lithium-ion power battery and preparation method thereof |
| CN102208633A (en) * | 2011-04-28 | 2011-10-05 | 侯春平 | Modified carbon micro powder lithium ion battery cathode material and preparation method thereof and lithium ion battery |
-
2013
- 2013-11-15 CN CN201310568608.XA patent/CN103647079B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6344235B1 (en) * | 1997-05-27 | 2002-02-05 | Tdk Corporation | Method of producing an electrode for non-aqueous electrolytic cells |
| CN1697215A (en) * | 2005-05-27 | 2005-11-16 | 深圳市贝特瑞电子材料有限公司 | Cathode material of composite carbon in use for lithium ion battery and preparation method |
| CN101212042A (en) * | 2006-12-31 | 2008-07-02 | 比亚迪股份有限公司 | Method for encapsulating active material for negative pole of Li-ion secondary battery |
| CN102148355A (en) * | 2011-03-03 | 2011-08-10 | 江西正拓新能源科技有限公司 | Cathode material for lithium-ion power battery and preparation method thereof |
| CN102208633A (en) * | 2011-04-28 | 2011-10-05 | 侯春平 | Modified carbon micro powder lithium ion battery cathode material and preparation method thereof and lithium ion battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852013A (en) * | 2015-03-17 | 2015-08-19 | 中国科学院广州能源研究所 | Preparation method of three-dimensional electrode slice based on aqueous adhesive |
| CN106279808A (en) * | 2016-08-30 | 2017-01-04 | 安徽蓝德集团股份有限公司 | A kind of marine communication cable material with excellent mechanical performance |
| CN106644935A (en) * | 2017-03-02 | 2017-05-10 | 天津市捷威动力工业有限公司 | Method and apparatus for measuring bonding force between graphite and binder of negative electrode of lithium battery |
| CN112670463A (en) * | 2020-04-16 | 2021-04-16 | 宁波杉杉新材料科技有限公司 | Graphite negative electrode material and preparation method and application thereof |
| CN115020633A (en) * | 2022-05-30 | 2022-09-06 | 惠州市豪鹏科技有限公司 | Battery negative plate preparation method, battery negative plate and battery thereof |
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| Publication number | Publication date |
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| CN103647079B (en) | 2015-11-25 |
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