CN110305153A - A kind of synthetic method and application of double oxalic acid Boratexes - Google Patents

A kind of synthetic method and application of double oxalic acid Boratexes Download PDF

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Publication number
CN110305153A
CN110305153A CN201910686922.5A CN201910686922A CN110305153A CN 110305153 A CN110305153 A CN 110305153A CN 201910686922 A CN201910686922 A CN 201910686922A CN 110305153 A CN110305153 A CN 110305153A
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China
Prior art keywords
oxalic acid
sodium
boratexes
double
double oxalic
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CN201910686922.5A
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Inventor
李世友
李文博
崔孝玲
李春雷
韩亚敏
杨莉
王鹏
王洁
魏媛
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Lanzhou University of Technology
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Lanzhou University of Technology
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/022Boron compounds without C-boron linkages
    • 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
    • H01M10/054Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • 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
    • H01M10/056Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566Liquid materials
    • H01M10/0568Liquid materials characterised by the solutes
    • 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
    • H01M4/62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00Electrolytes
    • H01M2300/0017Non-aqueous electrolytes
    • 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

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of synthetic methods of double oxalic acid Boratexes, according to the stoichiometric ratio of each element in double oxalic acid Boratexes, after the compound of a certain amount of boric acid, oxalic acid and sodium is dried at high temperature, it mixes, tabletting carries out solid-solid reaction under the high temperature conditions and obtains white solid, then carries out white solid after thoroughly drying, it is extracted in nonaqueous solvents, extract liquor evaporative crystallization is finally obtained into the double oxalic acid Boratexes of final products.The reaction conversion ratio of process route provided by the present invention is high, and yield is up to 70% or more, and the reaction time is short, and reaction condition is simple to operation, it is easy to accomplish industrialized production.

Description

A kind of synthetic method and application of double oxalic acid Boratexes
Technical field
The present invention relates to electrochemical material fields, and in particular to a kind of synthetic method and application of double oxalic acid Boratexes.
Background technique
The lithium ion secondary battery for developing comparative maturity at present has energy density high, has extended cycle life, self discharge is small etc. Advantage is widely used as the working power (mobile phone, palm PC etc.) of various portable electronic products, and gradually application is mobile dress Standby power battery (electric vehicle, submarine etc.).But global lithium resource is not rich, abundance is only 0.006% in the earth's crust, simultaneously It is unevenly distributed, becomes the suffering of the following large-scale application.
Compared with lithium resource, sodium reserves very abundant, crustal abundance is about 2.64%, also there is a large amount of sodium in seawater.Simultaneously Sodium and lithium are same major element, and chemical property is close, and the recycling of sodium is more mature cheap, substitutes lithium with sodium, opens Hair sodium ion secondary battery has broad application prospects.For sodium-ion battery, developing high performance electrolyte is to close very much The link of key, and high performance sodium salt is the important component for forming electrolyte.It is applied to sodium ion electrolyte material at present Sodium salt in material mainly has sodium hexafluoro phosphate and sodium perchlorate, and the two is bad for the resistance of micro-moisture, therefore is electrolysed material Although expecting that ionic conductivity is higher, stability is poor, so that the final cycle performance of battery is bad, requirement is not achieved. In lithium-ion electrolyte material, boron system lithium salts such as di-oxalate lithium borate and difluorine oxalic acid boracic acid lithium has moisture preferable Resistance, excellent combination property.So preparing corresponding sodium salt just has very high practical value.
Summary of the invention
The purpose of the present invention is to provide one kind to realize reactant homogeneous reaction in solid middle mixing, in conjunction with organic solvent reality The extraction of existing active constituent, finally obtains the synthetic method of double oxalic acid Boratexes of high quality of products.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of synthetic method of double oxalic acid Boratexes will be a certain amount of according to the stoichiometric ratio of each element in double oxalic acid Boratexes Boric acid, oxalic acid and sodium compound be dried at high temperature after, mix, tabletting, carry out under the high temperature conditions solid Reaction obtains white solid, then carries out after thoroughly drying white solid, is extracted in nonaqueous solvents, finally will extraction Liquid evaporative crystallization obtains the double oxalic acid Boratexes of final products.
Further, the compound of the sodium can be sodium hydroxide, sodium chloride, sodium isopropylate, sodium sulphate, sodium nitrate, cobalt One of sour sodium etc..
Further, the molar ratio of the compound of the sodium and oxalic acid is 1:2.5.
Further, include the following steps:
S1, according to the stoichiometric ratio of each element in double oxalic acid Boratexes, by the boric acid, oxalic acid and sodium hydroxide of certain mass;
S2, weighed oxalic acid is handled into 3h in 100 DEG C of vacuum and heating dryings, and boric acid and sodium hydroxide is antivacuum at 65 DEG C Heat drying handles 3 h;
S3, the boric acid by after the completion of drying, oxalic acid and sodium compound mix, tabletting, 120~180 DEG C of solid-solid reactions 12~ 15h obtains white solid;
S4, it after thoroughly drying resulting white solid, is extracted in acetonitrile or dimethyl carbonate solvent, it finally will extraction Liquid evaporative crystallization obtains double oxalic acid Boratexes that purity reaches 98% or more.
Further, the boric acid, oxalic acid, sodium hydroxide molar ratio be 1:2:1.
Its raw material that can be used as secondary cell of double oxalic acid Boratexes synthesized by the present invention: as secondary battery positive electrode material Cladding, the raw material of doping or the raw material as secondary cell electrolyte;And it can also be used to synthesize some new materials.
The invention has the following advantages:
The reaction conversion ratio of process route provided by the present invention is high, and yield is up to 70% or more, and the reaction time is short, reaction condition It is simple to operation, it is easy to accomplish industrialized production.
Detailed description of the invention
Fig. 1 is the infrared spectrogram for double oxalic acid Boratexes that embodiment 1 is prepared.
Fig. 2 is the liquid that double oxalic acid Boratexes that embodiment 2 is prepared are dissolved in mixed solvent SL/DEC=1:1 preparation The conductivity temperature curve of state electrolyte.
Fig. 3 is the XRD spectra for double oxalic acid Boratexes that embodiment 2 is prepared.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention Protection scope.
Embodiment 1
S1,20.83 g oxalic acid, 4.74 g boric acid, 1.99 g sodium hydroxides are weighed;
S2, weighed oxalic acid is handled into 3h in 100 DEG C of vacuum and heating dryings, and boric acid and sodium hydroxide is antivacuum at 65 DEG C Heat drying handles 3 h.
S3, the oxalic acid by after the completion of drying, boric acid, sodium hydroxide are placed in round bottom beaker, shake up (about 1 h), 10 M Pa tabletting, is transferred in beaker, is placed in vacuum oven, after 120 DEG C of 30 min of reaction, is evacuated to 0.07 M pa, Temperature reacts 12 h under conditions of being 180 DEG C, obtains white solid.
S4, obtained white solid grind into powder is transferred in the beaker equipped with 500 mL acetonitriles, stirs 15 min After filter, obtained filtrate is evaporated into solvent under the conditions of 65 DEG C, obtains double oxalic acid Boratexes of about 11.5 g, a conversion ratio About 76%, purity about 99%.
Double oxalic acid boron are provided as shown in Figure 1, in figure by double oxalic acid Boratex infrared spectrograms that the present embodiment is prepared The infrared spectrogram of sour lithium is for reference.
Embodiment 2
S1,19.33 g oxalic acid, 4.74 g boric acid, 1.99 g sodium hydroxides are weighed;
S2, weighed oxalic acid is handled into 3 h in 110 DEG C of vacuum and heating dryings, and by boric acid and 65 DEG C of antivacuum addings of sodium hydroxide Heated drying handles 3 h.
S3, the oxalic acid by after the completion of drying, boric acid, sodium hydroxide are placed in round-bottomed flask, are shaken up (about 1h), 10 M Pa tabletting, is transferred in beaker, is placed in vacuum oven, after 120 DEG C of 45 min of reaction, is evacuated to 0.07 M pa, 12 h are reacted under conditions of temperature is 150 DEG C, obtain white solid.
S4, obtained white solid grind into powder is transferred in the volumetric flask of 500 mL dimethyl carbonates, stirring 15 It is filtered after min, obtained filtrate is evaporated into solvent under the conditions of 65 DEG C, obtains the bis- oxalic acid Boratexes of about 10.5g, it is primary to convert Rate about 70%, purity about 98%.
Fig. 2 shows double oxalic acid Boratex XRD spectras that the present embodiment 2 is prepared, diffraction maximum is sharply obtained Preferable double oxalic acid Boratex bodies, and occur without apparent dephasign peak, it can be used as the raw material of positive electrode cladding, doping.
Fig. 3 is the liquid that double oxalic acid Boratexes that the present embodiment is prepared are dissolved in mixed solvent SL/DEC=1:1 preparation The conductivity temperature curve of electrolyte, it can be seen that its conductivity at room temperature reaches 10~3More than, meet secondary cell for The requirement of electrolytic conductivity.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase Mutually combination.

Claims (8)

1. a kind of synthetic method of double oxalic acid Boratexes, it is characterised in that: counted according to the chemistry of each element in double oxalic acid Boratexes Ratio is measured, after the compound of a certain amount of boric acid, oxalic acid and sodium is dried at high temperature, is mixed, tabletting, in high temperature item Solid-solid reaction is carried out under part and obtains white solid, and then white solid is carried out after thoroughly drying, is extracted in nonaqueous solvents It takes, extract liquor evaporative crystallization is finally obtained into the double oxalic acid Boratexes of final products.
2. a kind of synthetic method of double oxalic acid Boratexes as described in claim 1, it is characterised in that: the compound of the sodium can For one of sodium hydroxide, sodium chloride, sodium isopropylate, sodium sulphate, sodium nitrate, cobalt acid sodium.
3. a kind of synthetic method of double oxalic acid Boratexes as described in claim 1, it is characterised in that: the compound of the sodium with The molar ratio of oxalic acid is 1:2.5.
4. a kind of synthetic method of double oxalic acid Boratexes as described in claim 1, characterized by the following steps:
S1, according to the stoichiometric ratio of each element in double oxalic acid Boratexes, by the boric acid, oxalic acid and sodium hydroxide of certain mass;
S2, weighed oxalic acid is handled into 3h in 100 DEG C of vacuum and heating dryings, and boric acid and sodium hydroxide is antivacuum at 65 DEG C Heat drying handles 3 h;
S3, the boric acid by after the completion of drying, oxalic acid and sodium compound mix, tabletting, 120~180 DEG C of solid-solid reactions 12~ 15h obtains white solid;
S4, it after thoroughly drying resulting white solid, is extracted in acetonitrile or dimethyl carbonate solvent, it finally will extraction Liquid evaporative crystallization obtains double oxalic acid Boratexes that purity reaches 98% or more.
5. a kind of synthetic method of double oxalic acid Boratexes as claimed in claim 4, it is characterised in that: the boric acid, oxalic acid, hydrogen The molar ratio of sodium oxide molybdena is 1:2:1.
6. the application of double oxalic acid Boratexes of synthetic method synthesis as claimed in any one of claims 1 to 5, it is characterised in that: Its raw material that can be used as secondary cell.
7. application as claimed in claim 6, it is characterised in that: it can be used as secondary battery positive electrode material cladding, the original of doping Material.
8. application as claimed in claim 6, it is characterised in that: its raw material that can be used as secondary cell electrolyte.
CN201910686922.5A 2019-07-29 2019-07-29 A kind of synthetic method and application of double oxalic acid Boratexes Pending CN110305153A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115304629A (en) * 2022-10-09 2022-11-08 江苏国泰超威新材料有限公司 Preparation method of sodium difluorooxalate
CN115557980A (en) * 2022-12-06 2023-01-03 江苏华盛锂电材料股份有限公司 Synthesis and purification process of sodium bisoxalato
CN115850312A (en) * 2022-12-16 2023-03-28 山东海科创新研究院有限公司 Preparation method of sodium bisoxalato borate and obtained product

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627661A (en) * 2011-09-09 2012-08-08 兰州理工大学 Preparation method of lithium bis(oxalato)borate
CN103030657A (en) * 2011-10-10 2013-04-10 中国科学院福建物质结构研究所 Preparation method of electrolyte double-oxalate based lithium borate for lithium ion battery
KR101358682B1 (en) * 2013-06-26 2014-02-07 주식회사 천보정밀 Synthetic method of lithium bis(oxalato) borate
JP2014154446A (en) * 2013-02-12 2014-08-25 Toyota Motor Corp Nonaqueous electrolyte secondary battery and method for manufacturing the same
CN105732682A (en) * 2016-03-24 2016-07-06 洛阳和梦科技有限公司 Solid-phase production method of lithium-borate-base electrolyte
US20160268661A1 (en) * 2013-11-27 2016-09-15 Unist(Ulsan National Institute Of Science And Technology) Secondary battery

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627661A (en) * 2011-09-09 2012-08-08 兰州理工大学 Preparation method of lithium bis(oxalato)borate
CN103030657A (en) * 2011-10-10 2013-04-10 中国科学院福建物质结构研究所 Preparation method of electrolyte double-oxalate based lithium borate for lithium ion battery
JP2014154446A (en) * 2013-02-12 2014-08-25 Toyota Motor Corp Nonaqueous electrolyte secondary battery and method for manufacturing the same
KR101358682B1 (en) * 2013-06-26 2014-02-07 주식회사 천보정밀 Synthetic method of lithium bis(oxalato) borate
US20160268661A1 (en) * 2013-11-27 2016-09-15 Unist(Ulsan National Institute Of Science And Technology) Secondary battery
CN105732682A (en) * 2016-03-24 2016-07-06 洛阳和梦科技有限公司 Solid-phase production method of lithium-borate-base electrolyte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115304629A (en) * 2022-10-09 2022-11-08 江苏国泰超威新材料有限公司 Preparation method of sodium difluorooxalate
CN115557980A (en) * 2022-12-06 2023-01-03 江苏华盛锂电材料股份有限公司 Synthesis and purification process of sodium bisoxalato
CN115850312A (en) * 2022-12-16 2023-03-28 山东海科创新研究院有限公司 Preparation method of sodium bisoxalato borate and obtained product

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Application publication date: 20191008