CN102769135A - Li2ZnTi3O8/C nanocomposite synthesized by sol-gel method in one step and application of Li2ZnTi3O8/C nanocomposite - Google Patents

Li2ZnTi3O8/C nanocomposite synthesized by sol-gel method in one step and application of Li2ZnTi3O8/C nanocomposite Download PDF

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CN102769135A
CN102769135A CN2012102814791A CN201210281479A CN102769135A CN 102769135 A CN102769135 A CN 102769135A CN 2012102814791 A CN2012102814791 A CN 2012102814791A CN 201210281479 A CN201210281479 A CN 201210281479A CN 102769135 A CN102769135 A CN 102769135A
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complex
li2znti3o8
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魏明灯
徐玉霞
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Fuzhou University
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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
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    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
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Abstract

The invention discloses a Li2ZnTi3O8/C nanocomposite synthesized by a sol-gel method in one step as well as a preparation method and application of the Li2ZnTi3O8/C nanocomposite. The content of carbon is 3.5% in the Li2ZnTi3O8/C nanocomposite. The Li2ZnTi3O8/C nanocomposite is applied to a lithium battery, so that the excellent cycle performance and the higher specific capacity are shown. The specific capacity of the Li2ZnTi3O8/C nanocomposite can be 290mAhg<-1> after the Li2ZnTi3O8/C nanocomposite ciculates for 100 times at the electric current density of 0.2Ag<-1>, and the specific capacity of the Li2ZnTi3O8/C nanocomposite can be 220mAhg<-1> after the Li2ZnTi3O8/C nanocomposite ciculates for 100 times at the electric current density of 1Ag<-1>. The invention firstly provides a preparation method of the Li2ZnTi3O8/C nanocomposite synthesized by the sol-gel method in one step. The Li2ZnTi3O8/C nanocomposite provided by the invention is simple and easy to operate, low in cost, high in purity and good in performance, and can be synthesized largely.

Description

Synthetic Li of one step of sol-gal process 2ZnTi 3O 8/ C nano-complex and application thereof
Technical field
The invention belongs to and belong to battery material and learn the field, be specifically related to synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8/ C nano-complex.
Background technology
The core of lithium ion battery is a lithium storage materials.At present, graphite is the negative material that is widely used in the commercialization lithium ion battery.But graphite embedding lithium current potential is low, and graphite surface possibly cause the deposition of lithium metal in charge and discharge process, has certain potential safety hazard.Recently, spinelle Li 4Ti 5O 12And relevant titanium oxygen compound etc. is owing to having excellent cycle performance and advantage such as nontoxic, safe becomes more promising negative material.But Li 4Ti 5O 12Theoretical capacity have only half the and its embedding lithium current potential of graphite higher, thereby the negative material of exploitation with good circulation performance and higher capacity remains the research emphasis in this field.
The synthetic Li of one step of method that utilizes collosol and gel is not also arranged at present 2ZnTi 3O 8The pertinent literature report of/C nano-complex and the application in lithium battery thereof.
Summary of the invention
The object of the present invention is to provide synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8/ C nano-complex and its production and application, with this Li 2ZnTi 3O 8/ C nano-complex is used in the lithium battery, shows excellent cycle performance and higher specific capacity.In current density is 0.2A g -1After 100 circulations, its specific capacity can reach 290mA h g -1In current density is 1A g -1After 100 circulations, its specific capacity still can reach 220mA h g -1The present invention provides first and has utilized synthetic Li of one step of collosol and gel 2ZnTi 3O 8The preparation method of/C nano-complex, it is easy and simple to handle, cost is low, purity is high, excellent performance, can synthesize in a large number.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8Carbonaceous amount content is 3.5% in the/C nano-complex.Described Li 2ZnTi 3O 8/ C nano-complex is the sub-micron offspring that is formed by the primary particle accumulation of grain size between 15-30nm.
Synthetic Li of a kind of one step of aforesaid sol-gal process 2ZnTi 3O 8The method of/C nano-complex is with the Li of 3mmol isopropyl titanate, 1mmol 2CO 32H 2(the CH of O, 1mmol 3COO) 2Zn2H 2The ethanol of O and 10mL stirs into glue under 70 ℃ of water bath condition, place 700 ℃ argon atmosphere to calcine 3 hours down in this glue then, promptly makes Li 2ZnTi 3O 8/ C nano-complex.
Synthetic Li of a kind of one step of aforesaid sol-gal process 2ZnTi 3O 8The application of/C nano-complex, lithium battery assembling: press mass ratio Li 2ZnTi 3O 8/ C: Kynoar: be coated in 0.25 cm equably behind acetylene black=80:10:10 mixed grinding 2Copper sheet on do positive pole, reference electrode and electrode is lithium metal, electrolyte is 1M LiClO 4EC+DEC+EMC solution; The volume ratio of EC, DEC, EMC is 1:1:1 in the described EC+DEC+EMC solution; All assemblings are all carried out in glove box.
Beneficial effect of the present invention: the present invention is with this Li 2ZnTi 3O 8/ C nano-complex is used in the lithium battery, shows excellent cycle performance and higher specific capacity.In current density is 0.2A g -1After 100 circulations, its specific capacity can reach 290mA h g -1In current density is 1A g -1After 100 circulations, its specific capacity still can reach 220mA h g -1The present invention provides first and has utilized synthetic Li of one step of collosol and gel 2ZnTi 3O 8The preparation method of/C nano-complex, it is easy and simple to handle, cost is low, purity is high, excellent performance, can synthesize in a large number.
Description of drawings
Fig. 1 is Li of the present invention 2ZnTi 3O 8The sem photograph of/C nano-complex.
Fig. 2 is Li of the present invention 2ZnTi 3O 8The TG figure of/C nano-complex.
Fig. 3 is Li of the present invention 2ZnTi 3O 8The cycle performance resolution chart of/C nano-complex.
Embodiment
Embodiment 1
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8Carbonaceous amount content is 3.5% in the/C nano-complex.Described Li 2ZnTi 3O 8/ C nano-complex is the sub-micron offspring that is formed by the primary particle accumulation of grain size between 15-30nm.
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8The method of/C nano-complex is with the Li of 3mmol isopropyl titanate, 1mmol 2CO 32H 2(the CH of O, 1mmol 3COO) 2Zn2H 2The ethanol of O and 10mL stirs into glue under 70 ℃ of water bath condition, place 700 ℃ argon atmosphere to calcine 3 hours down in this glue then, promptly makes Li 2ZnTi 3O 8/ C nano-complex.
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8The application of/C nano-complex, lithium battery assembling: press mass ratio Li 2ZnTi 3O 8/ C: Kynoar: be coated in 0.25 cm equably behind acetylene black=80:10:10 mixed grinding 2Copper sheet on do positive pole, reference electrode and electrode is lithium metal, electrolyte is 1M LiClO 4EC+DEC+EMC solution; The volume ratio of EC, DEC, EMC is 1:1:1 in the described EC+DEC+EMC solution; All assemblings are all carried out in glove box.
Embodiment 2
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8Carbonaceous amount content is 3.5% in the/C nano-complex.Described Li 2ZnTi 3O 8/ C nano-complex is the sub-micron offspring that is formed by the primary particle accumulation of grain size between 15-30nm.
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8The method of/C nano-complex is with the Li of 3mmol isopropyl titanate, 1mmol 2CO 32H 2(the CH of O, 1mmol 3COO) 2Zn2H 2The ethanol of O and 10mL stirs into glue under 70 ℃ of water bath condition, place 750 ℃ argon atmosphere to calcine 3 hours down in this glue then, promptly makes Li 2ZnTi 3O 8/ C nano-complex.
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8The application of/C nano-complex, lithium battery assembling: press mass ratio Li 2ZnTi 3O 8/ C: Kynoar: be coated in 0.25 cm equably behind acetylene black=80:10:10 mixed grinding 2Copper sheet on do positive pole, reference electrode and electrode is lithium metal, electrolyte is 1M LiClO 4EC+DEC+EMC solution; The volume ratio of EC, DEC, EMC is 1:1:1 in the described EC+DEC+EMC solution; All assemblings are all carried out in glove box.
Embodiment 3
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8Carbonaceous amount content is 3.5% in the/C nano-complex.Described Li 2ZnTi 3O 8/ C nano-complex is the sub-micron offspring that is formed by the primary particle accumulation of grain size between 15-30nm.
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8The method of/C nano-complex is with the Li of 6mmol isopropyl titanate, 2mmol 2CO 32H 2(the CH of O, 2mmol 3COO) 2Zn2H 2The ethanol of O and 20mL stirs into glue under 70 ℃ of water bath condition, place 700 ℃ argon atmosphere to calcine 3 hours down in this glue then, promptly makes Li 2ZnTi 3O 8/ C nano-complex.
Synthetic Li of a kind of one step of sol-gal process 2ZnTi 3O 8The application of/C nano-complex, lithium battery assembling: press mass ratio Li 2ZnTi 3O 8/ C: Kynoar: be coated in 0.25 cm equably behind acetylene black=80:10:10 mixed grinding 2Copper sheet on do positive pole, reference electrode and electrode is lithium metal, electrolyte is 1M LiClO 4EC+DEC+EMC solution; The volume ratio of EC, DEC, EMC is 1:1:1 in the described EC+DEC+EMC solution; All assemblings are all carried out in glove box.
Fig. 1 has described Li 2ZnTi 3O 8/ C nano-complex is the sub-micron offspring that is formed by the primary particle accumulation of grain size between 15-30nm.Fig. 2 has explained Li 2ZnTi 3O 8Carbonaceous amount content is 3.5% in the/C nano-complex.Fig. 3 has showed this Li 2ZnTi 3O 8/ C nano-complex is used in the lithium battery, shows excellent cycle performance and higher specific capacity.In current density is 0.2A g -1After 100 circulations, its specific capacity can reach 290mA h g -1In current density is 1A g -1After 100 circulations, its specific capacity still can reach 220mA h g -1
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (4)

1. a sol-gal process one goes on foot synthetic Li 2ZnTi 3O 8/ C nano-complex is characterized in that: described Li 2ZnTi 3O 8Carbonaceous amount content is 3.5% in the/C nano-complex.
2. synthetic Li of one step of sol-gal process according to claim 1 2ZnTi 3O 8/ C nano-complex is characterized in that: described Li 2ZnTi 3O 8/ C nano-complex is the sub-micron offspring that is formed by the primary particle accumulation of grain size between 15-30nm.
3. one step of sol-gal process as claimed in claim 1 is synthesized Li 2ZnTi 3O 8The method of/C nano-complex is characterized in that: with the Li of 3mmol isopropyl titanate, 1mmol 2CO 32H 2(the CH of O, 1mmol 3COO) 2Zn2H 2The ethanol of O and 10mL stirs into glue under 70 ℃ of water bath condition, place 700 ℃ argon atmosphere to calcine 3 hours down in this glue then, promptly makes Li 2ZnTi 3O 8/ C nano-complex.
4. a sol-gal process one as claimed in claim 1 goes on foot synthetic Li 2ZnTi 3O 8The application of/C nano-complex is characterized in that: lithium battery assembling: press mass ratio Li 2ZnTi 3O 8/ C: Kynoar: be coated in 0.25 cm equably behind acetylene black=80:10:10 mixed grinding 2Copper sheet on do positive pole, reference electrode and electrode is lithium metal, electrolyte is 1M LiClO 4EC+DEC+EMC solution; The volume ratio of EC, DEC, EMC is 1:1:1 in the described EC+DEC+EMC solution; All assemblings are all carried out in glove box.
CN2012102814791A 2012-08-09 2012-08-09 Li2ZnTi3O8/C nanocomposite synthesized by sol-gel method in one step and application of Li2ZnTi3O8/C nanocomposite Pending CN102769135A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715408A (en) * 2013-12-13 2014-04-09 天津大学 Sol-gel preparation method of lithium zinc titanate as lithium ion battery cathode material
CN105280902A (en) * 2015-09-30 2016-01-27 福建中烟工业有限责任公司 Method for preparing carbon-coated lithium zinc titanate nanoribbon
CN105789580A (en) * 2016-03-21 2016-07-20 福建师范大学 Preparation method for copper-doped lithium zinc titanate nano particles and application thereof
CN107394153A (en) * 2017-07-18 2017-11-24 福州大学 A kind of lithium ion battery negative material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660948A (en) * 1995-09-26 1997-08-26 Valence Technology, Inc. Lithium ion electrochemical cell
CN101702431A (en) * 2009-10-30 2010-05-05 南京工业大学 Preparation method of lithium titanate negative electrode composite material for lithium ion battery
CN101764214A (en) * 2010-01-22 2010-06-30 福州大学 Production method of high-purity Li2ZnTi3O8 nano rod and application of same to lithium battery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660948A (en) * 1995-09-26 1997-08-26 Valence Technology, Inc. Lithium ion electrochemical cell
CN101702431A (en) * 2009-10-30 2010-05-05 南京工业大学 Preparation method of lithium titanate negative electrode composite material for lithium ion battery
CN101764214A (en) * 2010-01-22 2010-06-30 福州大学 Production method of high-purity Li2ZnTi3O8 nano rod and application of same to lithium battery

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
樊军良等: "无水溶胶-凝胶法制备LiFePO4/C电极材料及其结构和电化学性能", 《无机材料学报》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715408A (en) * 2013-12-13 2014-04-09 天津大学 Sol-gel preparation method of lithium zinc titanate as lithium ion battery cathode material
CN103715408B (en) * 2013-12-13 2016-03-16 天津大学 The sol-gel process for preparing of lithium ion battery negative material zinc titanate lithium
CN105280902A (en) * 2015-09-30 2016-01-27 福建中烟工业有限责任公司 Method for preparing carbon-coated lithium zinc titanate nanoribbon
CN105789580A (en) * 2016-03-21 2016-07-20 福建师范大学 Preparation method for copper-doped lithium zinc titanate nano particles and application thereof
CN105789580B (en) * 2016-03-21 2018-07-20 福建师范大学 A kind of preparation method and applications of Copper-cladding Aluminum Bar zinc titanate lithium nano-particle
CN107394153A (en) * 2017-07-18 2017-11-24 福州大学 A kind of lithium ion battery negative material

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Application publication date: 20121107