CN201478399U - High-voltage secondary lithium-ion battery - Google Patents
High-voltage secondary lithium-ion battery Download PDFInfo
- Publication number
- CN201478399U CN201478399U CN2009202315566U CN200920231556U CN201478399U CN 201478399 U CN201478399 U CN 201478399U CN 2009202315566 U CN2009202315566 U CN 2009202315566U CN 200920231556 U CN200920231556 U CN 200920231556U CN 201478399 U CN201478399 U CN 201478399U
- Authority
- CN
- China
- Prior art keywords
- lithium
- electric core
- voltage secondary
- core unit
- ion electric
- 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.)
- Expired - Fee Related
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a high-voltage secondary lithium-ion battery and belongs to the technical field of storage batteries. The secondary lithium-ion battery comprises a casing filled with electrolyte; the battery cell bin in the casing can accommodate at least two segments of lithium-ion battery cell units; the lithium-ion battery cell units are connected in series and packaged in the casing. The battery cell units of the high-voltage secondary lithium-ion battery are connected in series and share a battery cell bin, the electrolyte at the battery cell units can mutually communicate, and the environment of the battery cell units in the battery cell bin is identical, so that the performances of the battery cell units are basically identical, and the performances of the batteries are basically consistent in the use process. In addition, the balancing and protecting configuration of the high-voltage lithium-ion battery pack can be omitted.
Description
Technical field
The utility model relates to a kind of lithium ion battery, and especially a kind of high voltage secondary lithium battery belongs to the battery technology field.
Background technology
The applicant is finding in the lithium ion battery manufacture process that for many years there is performance difference each other unavoidably in single lithium ion battery, is difficult to reach consistent.Especially battery pack is through after using, and its consistency is poorer, and the result is restricted the use of lithium ion battery under the high voltage situation.In order to satisfy the user demand of high-voltage lithium ion batteries group; the single-unit lithium ion battery must be carried out the outside series connection; and in order to make its reliable and stable work; need take monitoring and balance protection measure to the series connected battery group; so both increase the cost of battery pack, also reduced the reliability of battery pack.
The utility model content
The purpose of this utility model is: at the problem that single lithium ion battery performance difference exists when constituting the high-voltage battery group, propose a kind ofly to need not to take battery balanced safeguard measure can guarantee the high voltage secondary lithium battery group of reliable and stable work.
In order to reach above purpose, high voltage secondary lithium battery of the present utility model comprises the housing that is filled with electrolyte, electric core storehouse in the described housing holds two joint lithium-ion electric core units at least, and described each lithium-ion electric core units in series connection is encapsulated in the described housing.
The utility model further improves, and described housing upper surface forms two places depression, and described recess extends the positive and negative electrode of entire cell by first segment lithium-ion electric core unit and final section lithium-ion electric core unit respectively.
Because the electric core unit of the utility model battery is connected in series and a shared electric core storehouse; the electrolyte at each electric core unit place can flow mutually; so the residing environment facies of each electric core unit in the electric core storehouse together; thereby guaranteed that its performance is basic identical, and then guaranteed each battery performance basically identical in use. can omit the equilibrium and protection configuration of high-voltage lithium group.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the three-dimensional appearance structural representation of an embodiment of the utility model.
Fig. 2 is the plan structure schematic diagram of Fig. 1 embodiment.
Embodiment
Embodiment one
The high voltage secondary lithium battery of present embodiment as depicted in figs. 1 and 2, the housing 1 inner electric core storehouse that forms of square-section, wherein encapsulate the lithium-ion electric core unit 2 of four joint proper alignment, the volume in electricity core storehouse just in time matches with the volume of arranging lithium-ion electric core unit 2 of respectively putting in order that is held, and therefore need not additional positioner.
Lithium-ion electric core unit 2 is combined by one group of positive/negative plate spaced apart and is constituted, and is separated by the diaphragm paper insulation between each adjacent pole piece.Positive and negative terminals is drawn at the two ends, top of lithium-ion electric core unit 2 respectively.By flow guide bar 3 series connection, be separated with insulation diaphragm 4 between the adjacent lithium-ion electric core unit 2 between the pole of each lithium-ion electric core unit 2.
The upper surface of housing 1 forms two places depression with two jiaos of places, limit, and recess extends the positive and negative electrode of entire cell by the pole of first segment lithium-ion electric core unit and final section lithium-ion electric core unit respectively.
During production, can adopt laser or ultrasonic bonding between the positive and negative terminals of cascaded lithium ion electricity core unit and the flow guide bar, make it to be connected in series.Though between each the electric core unit in the housing barrier film that can guarantee each not short circuit of electric core unit is arranged; because the electrolyte character in the same electric core storehouse is identical; therefore the residing environment facies of each electric core unit together; thereby guaranteed electrical property basically identical in the battery use of each battery unit; can save the equilibrium and protection configuration of high-voltage lithium group like this, significantly reduce cost.
Present embodiment is owing to guaranteed the consistency of performance of electric core unit in each battery, therefore make consubstantiality become possibility from 3.0V to hundreds and thousands of V with the voltage of electrolytic bath lithium ion battery group, and then make high-voltage lithium ion batteries have better charge, the different instructions for uses in each field of the high-voltage lithium ion batteries group of satisfying the demand will be organized the parallel connection of high-voltage battery group more and afterwards then can satisfy powerful user demand.
Conclusion is got up, and the high-voltage lithium ion secondary cell of present embodiment has following distinguishing feature:
1) manufacturing cost is lower, price is more cheap.
2) mass-energy is than improving greatly.
3) be user-friendly to.
4) good stable is arranged, improved the life-span that recycles of high-voltage battery group.
5) improve the lithium ion battery high temperature performance, effectively improved low temperature performance.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (5)
1. a high voltage secondary lithium battery comprises the housing that is filled with electrolyte, it is characterized in that: the electric core storehouse in the described housing holds two joint lithium-ion electric core units at least, and described each lithium-ion electric core units in series connection is encapsulated in the described housing.
2. high voltage secondary lithium battery according to claim 1, it is characterized in that: described housing upper surface forms two places depression, and described recess extends the positive and negative electrode of entire cell by first segment lithium-ion electric core unit and final section lithium-ion electric core unit respectively.
3. high voltage secondary lithium battery according to claim 2 is characterized in that: described lithium-ion electric core unit is combined by one group of positive/negative plate spaced apart and is constituted, and is separated by the diaphragm paper insulation between each adjacent pole piece.
4. high voltage secondary lithium battery according to claim 2 is characterized in that: connect by flow guide bar between the pole of described each lithium-ion electric core unit.
5. high voltage secondary lithium battery according to claim 4 is characterized in that: be separated with insulation diaphragm between the described adjacent lithium-ion electric core unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202315566U CN201478399U (en) | 2009-09-01 | 2009-09-01 | High-voltage secondary lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202315566U CN201478399U (en) | 2009-09-01 | 2009-09-01 | High-voltage secondary lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478399U true CN201478399U (en) | 2010-05-19 |
Family
ID=42414659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202315566U Expired - Fee Related CN201478399U (en) | 2009-09-01 | 2009-09-01 | High-voltage secondary lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366362A (en) * | 2020-11-10 | 2021-02-12 | 江苏诺迪新能源科技有限公司 | Novel high-voltage lithium ion battery and preparation method thereof |
-
2009
- 2009-09-01 CN CN2009202315566U patent/CN201478399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366362A (en) * | 2020-11-10 | 2021-02-12 | 江苏诺迪新能源科技有限公司 | Novel high-voltage lithium ion battery and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120901 |