CN107331869A - It is a kind of to lift the compound additive of lithium titanate electric material cryogenic property - Google Patents
It is a kind of to lift the compound additive of lithium titanate electric material cryogenic property Download PDFInfo
- Publication number
- CN107331869A CN107331869A CN201710044396.3A CN201710044396A CN107331869A CN 107331869 A CN107331869 A CN 107331869A CN 201710044396 A CN201710044396 A CN 201710044396A CN 107331869 A CN107331869 A CN 107331869A
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- CN
- China
- Prior art keywords
- compound additive
- lithium titanate
- carbon
- oxide
- lift
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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 compound additive of lithium titanate electric material cryogenic property can be lifted the invention discloses a kind of, belongs to energy storage lithium electric material technical field, using the molal quantity of lithium titanate material as radix, the addition of compound additive is molar percentage 1%~20%；The compound additive includes one or more metal oxides and a kind of or carbon and the mixture of carbon tubing conductive agent.What the invention was provided can lift the compound additive of lithium titanate electric material cryogenic property, improve the cryogenic property of lithium titanate material, solve the problem of electric discharge ratio of lithium titanate material at low ambient temperatures is low, popularization of the favourable lithium titanate material in terms of new energy bus and stored energy application field.
Description
Technical field
The invention belongs to energy storage lithium electric material technical field, and in particular to one kind can lift lithium titanate electric material cryogenic property
Compound additive.
Background technology
The lithium titanate battery that the lithium titanate material that uses at present makes, which has, to have extended cycle life, the features such as security performance is high,
Also begin to apply in fields such as electric bus, energy storage stand-by power supplies.Although the battery cryogenic property that current lithium titanate material makes
It is better than the battery low temperature that LiFePO4, ternary material make, found in application process, in northern winter temperature lower ground
Side is declined using substantially ratio discharge performance when using in summer, and the lithium titanate battery that lithium titanate material makes is at low ambient temperatures
Application it is still undesirable.
The content of the invention
Instant invention overcomes above-mentioned shortcoming, lithium titanate electric material low temperature properties can be lifted it is an object of the invention to provide one kind
Can compound additive, using the molal quantity of lithium titanate material as radix, the addition of compound additive for molar percentage 1%~
20%；The compound additive includes metal oxide and carbon and the mixture of carbons conductive agent.
It is preferred that, the compound additive includes oxide and carbon and carbons conductive agent, wherein, oxide accounts for compound addition
The 10%~70% of agent total moles quality, carbon and carbons conductive agent account for the 90%~30% of compound additive total moles quality.
It is preferred that, the oxide be niobium oxide, zirconium oxide, chromium oxide, iron oxide, aluminum oxide, manganese oxide, bismuth oxide,
The mixture of any one or more in yittrium oxide, beryllium oxide, magnesia, indium oxide, silica, nickel oxide, molybdenum oxide.
It is preferred that, the carbon and carbons conductive agent are VGCF, CNTS, graphene, carbon black, Ketjen black, SP, nano-sized carbon, work
The mixture of any one or more in property carbon etc..
Second object of the present invention, which is to provide, a kind of can lift the compound additive of lithium titanate electric material cryogenic property
Adding method be：In any one process of compound additive before lithium titanate material ball milling process, Ultrafine Grinding process, sintering
Addition.
Third object of the present invention, which is to provide, a kind of can lift the compound addition of lithium titanate electric material cryogenic property
The application of agent, particularly adds in lithium titanate electric material to lift application of the material at low temperature in terms of discharge capacity.
The beneficial effects of the invention are as follows：
The present invention uses oxide with carbon and carbon tubing conductive agent for raw material, and raw material is easily obtained；Improve lithium titanate material
Cryogenic property, compared with common commercially available lithium titanate battery, the discharge capacity of the battery (- 10 DEG C~-30 DEG C) at low temperature is bright
Aobvious increase, solves the application problem of lithium titanate material at low ambient temperatures；Favourable lithium titanate material is in new energy bus and storage
Popularization in terms of energy application field.
Embodiment
Embodiment 1
The addition of compound additive is molar percentage 1%, and compound additive gross mass is 100mg, wherein, yittrium oxide
20mg, niobium oxide 20mg, CNT CNTS 30mg, graphene conductive agent 30mg are added before sintering circuit
Embodiment 2
The addition of compound additive is molar percentage 10%, and compound additive gross mass is 1000mg, wherein, oxidation
Magnesium 200mg, chromium oxide 200mg, CNT CNTS 300mg, Ketjen black 300mg are added before sintering circuit.
Embodiment 3
The addition of compound additive is molar percentage 15%, and compound additive gross mass is 1500mg, wherein, oxidation
Aluminium 400mg, niobium oxide 200mg, VGCF 300mg, SP 600mg, are added before sintering circuit.
Embodiment 4
The addition of compound additive is molar percentage 18%, and compound additive gross mass is 1800mg, wherein, oxidation
Magnesium 500mg, yittrium oxide 300mg, VGCF 400mg, Ketjen black 600mg, are added before spray drying process.
Embodiment 5
The addition of compound additive is molar percentage 20%, and compound additive gross mass is 2000mg, wherein, oxidation
Aluminium 500mg, chromium oxide 300mg, VGCF 400mg, Ketjen black 600mg, are added before spray drying process.
As seen from Table 1, compared with common commercially available lithium titanate battery (60%~85%), it with the addition of in embodiment 1-5
After compound additive, the discharge capacity (75%~93%) that -10 DEG C at low temperature~-30 DEG C of battery is significantly increased.
Commercially available lithium titanate battery and discharge capacity performance pair after the additive in addition embodiment 1-5 under the different temperatures of table 1
Than
| -10℃ | -20℃ | -30℃ | |
| Commercially available lithium titanate battery | 85% | 75% | 60% |
| Add embodiment 1 | 90% | 85% | 75% |
| Add embodiment 2 | 91% | 84% | 77% |
| Add embodiment 3 | 93% | 88% | 80% |
| Add embodiment 4 | 92% | 86% | 79% |
| Add embodiment 5 | 91% | 83% | 76% |
Claims (6)
1. a kind of can lift the compound additive of lithium titanate electric material cryogenic property, it is characterised in that with rubbing for lithium titanate material
Your number is radix, and the addition of compound additive is molar percentage 1%~20%；The compound additive includes a kind of or many
Plant metal oxide and a kind of or carbon and the mixture of carbon tubing conductive agent.
2. according to claim 1 can lift the compound additive of lithium titanate electric material cryogenic property, it is characterised in that institute
Stating compound additive includes metal oxide and carbon and carbon tubing conductive agent, wherein, metal oxide accounts for compound additive and always rubbed
The 10%~70% of that quality, carbon and carbon tubing conductive agent account for the 90%~30% of compound additive total moles quality.
3. according to claim 1 can lift the compound additive of lithium titanate electric material cryogenic property, it is characterised in that institute
State metal oxide for niobium oxide, zirconium oxide, chromium oxide, iron oxide, aluminum oxide, manganese oxide, bismuth oxide, yittrium oxide, beryllium oxide,
The mixture of any one or more in magnesia.
4. according to claim 1 can lift the compound additive of lithium titanate electric material cryogenic property, it is characterised in that institute
It is any one in VGCF, CNTS, graphene, carbon black, Ketjen black, SP, nano-sized carbon, activated carbon etc. to state carbon and carbon tubing conductive agent
Plant or a variety of mixtures.
5. a kind of adding method of the compound additive as claimed in claim 1 that can lift lithium titanate electric material cryogenic property,
Characterized in that, the compound additive is in lithium titanate material ball milling process, Ultrafine Grinding process, any one preceding process of sintering
Addition.
6. a kind of application of the compound additive as claimed in claim 1 that can lift lithium titanate electric material cryogenic property, especially
Be addition in lithium titanate electric material to lift application of the material at low temperature in terms of discharge capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044396.3A CN107331869A (en) | 2017-01-21 | 2017-01-21 | It is a kind of to lift the compound additive of lithium titanate electric material cryogenic property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044396.3A CN107331869A (en) | 2017-01-21 | 2017-01-21 | It is a kind of to lift the compound additive of lithium titanate electric material cryogenic property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107331869A true CN107331869A (en) | 2017-11-07 |
Family
ID=60193085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710044396.3A Pending CN107331869A (en) | 2017-01-21 | 2017-01-21 | It is a kind of to lift the compound additive of lithium titanate electric material cryogenic property |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289449A (en) * | 2019-06-04 | 2019-09-27 | 江西力能新能源科技有限公司 | A kind of electrolyte and its application on low temperature lithium battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891303A (en) * | 2011-07-20 | 2013-01-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Lithium ion secondary battery cathode material yttrium-doped lithium titanate and its preparation method and use |
| CN103151505A (en) * | 2013-03-01 | 2013-06-12 | 中国科学院过程工程研究所 | Lithium-titanate composite negative pole material and preparation method thereof |
| CN103346310A (en) * | 2013-07-11 | 2013-10-09 | 苏州懿源宏达知识产权代理有限公司 | Preparation method of carbon-clad holmium-doped lithium titanate composite negative material |
| CN104393272A (en) * | 2014-10-22 | 2015-03-04 | 中国石油大学(北京) | Lithium titanate cathode composite material and preparation method |
| CN105406051A (en) * | 2014-09-16 | 2016-03-16 | 河南科隆新能源有限公司 | Composite lithium titanate preparation method |
-
2017
- 2017-01-21 CN CN201710044396.3A patent/CN107331869A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891303A (en) * | 2011-07-20 | 2013-01-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Lithium ion secondary battery cathode material yttrium-doped lithium titanate and its preparation method and use |
| CN103151505A (en) * | 2013-03-01 | 2013-06-12 | 中国科学院过程工程研究所 | Lithium-titanate composite negative pole material and preparation method thereof |
| CN103346310A (en) * | 2013-07-11 | 2013-10-09 | 苏州懿源宏达知识产权代理有限公司 | Preparation method of carbon-clad holmium-doped lithium titanate composite negative material |
| CN105406051A (en) * | 2014-09-16 | 2016-03-16 | 河南科隆新能源有限公司 | Composite lithium titanate preparation method |
| CN104393272A (en) * | 2014-10-22 | 2015-03-04 | 中国石油大学(北京) | Lithium titanate cathode composite material and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289449A (en) * | 2019-06-04 | 2019-09-27 | 江西力能新能源科技有限公司 | A kind of electrolyte and its application on low temperature lithium battery |
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Application publication date: 20171107 |