CN101101987A - Lithium ion battery and its prescription of anode material - Google Patents
Lithium ion battery and its prescription of anode material Download PDFInfo
- Publication number
- CN101101987A CN101101987A CNA2007100254879A CN200710025487A CN101101987A CN 101101987 A CN101101987 A CN 101101987A CN A2007100254879 A CNA2007100254879 A CN A2007100254879A CN 200710025487 A CN200710025487 A CN 200710025487A CN 101101987 A CN101101987 A CN 101101987A
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion battery
- prescription
- lithium ion
- anode material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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 is concerned with the description of the anode lithium ion battery material to improve its battery thermal stability, and the proportions are: lithium cobaltoxide 65%-72%, Li(Mn1/3Co1/3Ni1/3)O2 15%-18%, conductive graphite 5%-8%, vinylidene fluoride 2%-4% and the rest are impurity. The anode lithium ion battery is with high heat stability and short-circuits ability.
Description
Technical field
The present invention relates to the prescription of lithium ion battery and positive electrode thereof.
Background technology
At present, generally the lithium ion battery of Shi Yonging is usually said lithium battery, and the main component of its positive electrode is a cobalt acid lithium, and the main component of negative panel material is an electrically conductive graphite, and the main component of electrolyte is ethylene carbonate or lithium hexafluoro phosphate.Because the positive pole of lithium ion battery has selected for use cobalt acid lithium as main material, make lithium ion battery have operating voltage height (average working voltage is 3.7V), steady, the suitable high current charge-discharge of charging/discharging voltage, specific energy height, good cycle and conductivity height, and production technology is simple, characteristics such as preparation easily, has obtained application widely in a lot of fields.But, the thermal stability of the lithium ion battery of current use is also poor, when its internal temperature above 200 ℃, cobalt acid lithium in the positive pole just begins to decompose, oxygen that discharges and battery electrolyte reaction, discharge a large amount of heats, make many lithium ion batteries the phenomenon of heaving in use occur, shortened its useful life.
Summary of the invention
First technical problem to be solved by this invention is: provide a kind of prescription of anode material for lithium-ion batteries, to improve the thermal stability of entire lithium ion battery.
Another technical problem to be solved by this invention is: a kind of lithium ion battery with higher thermal stability is provided.
For solving above-mentioned first technical problem, the technical solution used in the present invention is: the prescription of anode material for lithium-ion batteries, the percentage by weight of its various compositions is respectively: cobalt acid lithium 65%～72%, nickle cobalt lithium manganate 15%～18%, electrically conductive graphite 5%～8% and Kynoar 2%～4%, all the other are impurity.
For solving above-mentioned another technical problem, the technical solution used in the present invention is: lithium ion battery comprises: main component is that negative pole, the main component of graphite is the electrolyte of ethylene carbonate or lithium hexafluoro phosphate, and the positive pole that comprises above-mentioned prescription.
The invention has the beneficial effects as follows: because nickle cobalt lithium manganate (PLB) has higher thermal stability, after having added nickle cobalt lithium manganate (PLB) in the anode material for lithium-ion batteries, the thermal stability of entire cell has increased significantly, this lithium ion cell charging to the heat decomposition temperature of 4.5V still than the lithium cell charging that does not add nickle cobalt lithium manganate in the positive electrode to the heat decomposition temperature height of 4.2V nearly 100 ℃.In addition, the short-circuit capability of lithium battery of the present invention has obtained further raising.
Embodiment
Embodiment 1:
The prescription of anode material for lithium-ion batteries of the present invention, the percentage by weight of its various compositions is respectively: cobalt acid lithium 65%, nickle cobalt lithium manganate 18%, electrically conductive graphite 8% and Kynoar 4%, all the other are impurity.
Embodiment 2:
The prescription of anode material for lithium-ion batteries of the present invention, the percentage by weight of its various compositions is respectively: cobalt acid lithium 72%, nickle cobalt lithium manganate 15%, electrically conductive graphite 5% and Kynoar 2%, all the other are impurity.
Embodiment 3:
The prescription of anode material for lithium-ion batteries of the present invention, the percentage by weight of its various compositions is respectively: cobalt acid lithium 70%, nickle cobalt lithium manganate 16%, electrically conductive graphite 7% and Kynoar 3%, all the other are impurity.
Lithium ion battery of the present invention, comprise: main component is that negative pole, the main component of graphite is the electrolyte of ethylene carbonate or lithium hexafluoro phosphate, and the positive pole that cobalt acid lithium, nickle cobalt lithium manganate, electrically conductive graphite and four kinds of materials of Kynoar are made according to the proportioning described in above-mentioned any embodiment.
Because nickle cobalt lithium manganate (PLB) has higher thermal stability, after having added nickle cobalt lithium manganate (PLB) in the anode material for lithium-ion batteries, the thermal stability of entire cell has increased significantly, this lithium ion cell charging to the heat decomposition temperature of 4.5V still than the lithium cell charging that does not add nickle cobalt lithium manganate in the positive electrode to the heat decomposition temperature height of 4.2V nearly 100 ℃.In addition, the short-circuit capability of lithium battery of the present invention has obtained further raising.
Claims (2)
1. the prescription of anode material for lithium-ion batteries, the percentage by weight of its various compositions is respectively: cobalt acid lithium 65%～72%, nickle cobalt lithium manganate 15%～18%, electrically conductive graphite 5%～8% and Kynoar 2%～4%, all the other are impurity.
2. lithium ion battery, comprising: main component is that negative pole, the main component of graphite is the electrolyte of ethylene carbonate or lithium hexafluoro phosphate, it is characterized in that: also comprise the positive pole that contains the described prescription of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100254879A CN101101987A (en) | 2007-07-31 | 2007-07-31 | Lithium ion battery and its prescription of anode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100254879A CN101101987A (en) | 2007-07-31 | 2007-07-31 | Lithium ion battery and its prescription of anode material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101101987A true CN101101987A (en) | 2008-01-09 |
Family
ID=39036158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100254879A Pending CN101101987A (en) | 2007-07-31 | 2007-07-31 | Lithium ion battery and its prescription of anode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101101987A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752558A (en) * | 2008-12-22 | 2010-06-23 | 深圳市比克电池有限公司 | Lithium ion battery anode material and preparation method thereof |
| CN101685878B (en) * | 2008-09-27 | 2013-09-18 | 深圳市比克电池有限公司 | Preparation method of polymer lithium ion battery |
| CN111900363A (en) * | 2020-08-21 | 2020-11-06 | 珠海冠宇电池股份有限公司 | Positive active material, and pole piece and lithium ion battery containing positive active material |
| CN112072071A (en) * | 2020-09-04 | 2020-12-11 | 珠海冠宇电池股份有限公司 | Positive pole piece and lithium ion battery comprising same |
-
2007
- 2007-07-31 CN CNA2007100254879A patent/CN101101987A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685878B (en) * | 2008-09-27 | 2013-09-18 | 深圳市比克电池有限公司 | Preparation method of polymer lithium ion battery |
| CN101752558A (en) * | 2008-12-22 | 2010-06-23 | 深圳市比克电池有限公司 | Lithium ion battery anode material and preparation method thereof |
| WO2010072136A1 (en) * | 2008-12-22 | 2010-07-01 | 深圳市比克电池有限公司 | Positive material of lithium ion battery and method for preparing the same |
| US9484577B2 (en) | 2008-12-22 | 2016-11-01 | Shenzhen Bak Battery Co., Ltd. | Positive electrode materials for lithium ion batteries and process for preparing the same |
| CN111900363A (en) * | 2020-08-21 | 2020-11-06 | 珠海冠宇电池股份有限公司 | Positive active material, and pole piece and lithium ion battery containing positive active material |
| CN112072071A (en) * | 2020-09-04 | 2020-12-11 | 珠海冠宇电池股份有限公司 | Positive pole piece and lithium ion battery comprising same |
| CN112072071B (en) * | 2020-09-04 | 2022-06-14 | 珠海冠宇电池股份有限公司 | Positive pole piece and lithium ion battery comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109873205B (en) | Electrolyte suitable for silicon-carbon cathode and lithium ion battery containing electrolyte | |
| CN106129365A (en) | A kind of high security iron manganese phosphate lithium battery | |
| CN108767263B (en) | Preparation method and application of modified metal lithium negative electrode copper foil current collector | |
| CN102903956B (en) | Lithium titanate battery and electrolyte thereof | |
| CN102082292A (en) | High-temperature lithium ion battery electrolyte and lithium ion battery | |
| CN103400962A (en) | Spherical LiFePO4/(C+La2/3-xLi3xTiO3) composite anode material and preparation method thereof | |
| CN102394312A (en) | Low temperature improved lithium iron phosphate cell | |
| CN102610790B (en) | Lithium rechargeable battery and its positive plate | |
| CN103855389A (en) | Ferric (III) fluoride / carbon composite material and its preparation method and application | |
| CN104218234A (en) | High-cycle-performance composite positive electrode material of lithium ion battery and preparation method of material | |
| CN108063280B (en) | Lithium ion battery electrolyte | |
| CN103390748B (en) | A kind of preparation method of alumina-coated lithium cobaltate cathode material | |
| CN108390096A (en) | A kind of application of tetrafluoroborate, composite electrolyte and composite positive pole comprising tetrafluoroborate | |
| CN103000874A (en) | Preparation method of carbon-coated ternary positive electrode material | |
| CN110061285A (en) | A kind of solid lithium battery and preparation method thereof | |
| CN107611407A (en) | A kind of positive pole of lithium manganese battery formula and preparation method | |
| CN102299365B (en) | Lithium ion battery preventing overdischarge and battery pack thereof | |
| CN103066295B (en) | Internally formed lead plaster of storage battery suitable for high temperature area | |
| CN101101987A (en) | Lithium ion battery and its prescription of anode material | |
| CN109449413A (en) | A kind of lithium phosphate class additive, lithium-rich manganese-based anode and lithium battery | |
| CN103633313B (en) | The preparation method of a kind of fluorographite and LiMn2O4 composite material and prepare lithium ion battery as positive electrode | |
| CN113206292B (en) | Polymer-based composite solid electrolyte and preparation method and application thereof | |
| CN108832180A (en) | A kind of lithium-ion battery electrolytes and the lithium ion battery comprising the electrolyte | |
| CN104157903A (en) | High-voltage lithium ion battery carbonate-based electrolyte solution and preparation method and application thereof | |
| CN102324564A (en) | Electrolyte additive and lithium ion battery containing electrolyte additive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |