CN102280606A - Insulating protection pad inside energy power type lithium ion battery - Google Patents
Insulating protection pad inside energy power type lithium ion battery Download PDFInfo
- Publication number
- CN102280606A CN102280606A CN2011101796397A CN201110179639A CN102280606A CN 102280606 A CN102280606 A CN 102280606A CN 2011101796397 A CN2011101796397 A CN 2011101796397A CN 201110179639 A CN201110179639 A CN 201110179639A CN 102280606 A CN102280606 A CN 102280606A
- Authority
- CN
- China
- Prior art keywords
- pad
- protection pad
- lithium ion
- insulation protection
- battery
- 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
Images
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 provides an insulating protection pad inside an energy power type lithium ion battery. According to the invention, two parallel first crease lines on the insulating protection pad divide the insulating protection pad into three parts including a left side pad, a middle part side and a right side pad; the left side pad and the right side pad are respectively perpendicular to the middle part pad and are at a same side of the middle part pad; edges of two sides of the left side pad, the middle part side and the right side pad are respectively bent along two parallel second crease lines on the insulating protection pad; the second crease lines and the first crease lines are perpendicular to each other; and a though hole, which enables an electrolyte to permeate into an electrode conveniently, is arranged on the middle part pad. According to the insulating protection pad inside the energy power type lithium ion battery provided in the invention, an exposed copper-aluminum foil of the electrode is well wrapped and it is prevented that there is a short circuit between the electrode and a battery housing, so that security performance of the battery can be substantially improved; besides, the occupied inner space of the battery is small, so that it is beneficial to improve energy of a volume ratio of a single battery.
Description
Technical field
The present invention relates to technical field of lithium-ion battery, especially a kind of energy work rate type inside lithium ion cell insulation protection pad.
Background technology
Compare with the battery of other types such as plumbic acid, cadmium nickel in view of lithium ion battery have that specific capacity is big, operating voltage is high, charging rate is fast, operating temperature range is wide, have extended cycle life, volume is little and plurality of advantages such as in light weight, be widely used in fields such as mobile phone, notebook computer, electric tool, and its range of application more and more widely.
Expansion along with the lithium ion battery scope of application, we call electrokinetic cell to the chemical power source that is applied to dynamic power system traditionally, as be applied to fields such as electric tool, electric motor car, electrokinetic cell service condition complexity, simultaneously also require battery to have higher volumetric properties and power-performance, and the excellent safety energy.Employing lead-acid battery and ickel-cadmium cell that present traditional electrokinetic cell is more, instructions for use when these two kinds of batteries can provide bigger output current often to need high-power output to be suitable for electric tool and electric motor car, but, for lithium ion battery, if want to adopt lithium ion battery, must on present basis, further improve the capacity of cell and power-performance to satisfy the special instructions for use of electrokinetic cell application as electrokinetic cell.
At present, the energy work rate type lithium ion batteries that adopt on the hybrid vehicle more, this type of battery request has higher capacity and bigger discharge power simultaneously.When its capacity and discharge power were satisfied, the full performance of battery itself was also had higher requirement.In case short circuit appears in utmost point group and housing in the battery, will cause serious security incident.So in the production process, use the insulation exotic material utmost point group may be carried out coated insulation with the part of housing short circuit.The utmost point group of energy work rate type battery adopts winding-structure more, and positive and negative lug is distributed in the left and right sides of battery, and traditional safeguard measure is to utilize injection molding technology to produce the insulation protection cover of plastic cement material, and utmost point group is easily taken place to encase with the part of housing short circuit.The method can play the purpose that improves security performance really, but itself has many shortcomings.At first, injection molding technology has certain requirement to the thickness of molded part itself, and the plastic thickness of general material minimum is 0.8-1.0mm, and this causes insulation cushion itself to take a large amount of inner space of battery, thereby causes battery capacity to reduce.The structure of moulding is comparatively complicated in addition, and manufacturing cost height, and assembling difficulty can take too much manpower and equipment, have reduced production efficiency, are unfavorable for the automated production of battery.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of energy work rate type inside lithium ion cell insulation protection pad.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of energy work rate type inside lithium ion cell insulation protection pad; by two first parallel crease lines on the described insulation protection pad this insulation protection pad is divided into the left side pad; middle part pad and right side pad three parts; wherein the left side pad vertical with the middle part pad respectively with the right side pad and be positioned in the middle part of the pad homonymy; this left side pad; middle part pad and pad both sides of the edge, right side are respectively along two parallel same lateral bucklings of second crease line on the insulation protection pad; described second crease line is vertical mutually with first crease line, and described middle part pad is provided with is convenient to the through hole of electrolyte to utmost point group internal penetration.
Preferably, above-mentioned energy work rate type inside lithium ion cell insulation protection pad, described through hole is the circular hole shape.
Preferably, above-mentioned energy work rate type inside lithium ion cell insulation protection pad, described number of openings is 12.
Preferably, above-mentioned energy work rate type inside lithium ion cell insulation protection pad, described insulation protection pad is a high-temperature insulation PP material.
Structure of the present invention has following beneficial effect:
Above-mentioned energy work rate type inside lithium ion cell insulation protection pad can encase by well that utmost point group is exposed verdigris paper tinsel, prevents to be short-circuited between utmost point group and the battery case, has improved the security performance of battery greatly; It is little to take the inside battery space, helps improving the volumetric specific energy of cell; Simple in structure, can reduce location too much in the battery assembling process and loaded down with trivial details packaging process, be convenient to battery and realize the automation assembling; Processing cost is low, and manufacturing process is simple, only needs simple cross cutting, hot melt and bending frock just can make and finishes.
Description of drawings
Fig. 1 is the structural representation of energy work rate type inside lithium ion cell insulation protection pad of the present invention.
Among the figure: the pad of pad 3-right side, pad 2-middle part, 1-left side
The 4-first crease line 5-second crease line 6-through hole
Embodiment
For further specifying the present invention, existing conjunction with figs. is described in detail:
As shown in Figure 1; described energy work rate type inside lithium ion cell insulation protection pad; adopting thickness by described insulation protection pad is 0.25mm high-temperature insulation PP material; two first parallel crease lines 4 are divided into left side pad 1 with this insulation protection pad on it; middle part pad 2 and right side pad 3 three parts; wherein left side pad 1 and right side pad 3 vertical with middle part pad 2 respectively and be positioned in the middle part of pad 2 homonymies; this left side pad 1; middle part pad 2 connects typing along two second parallel crease lines 5 on the insulation protection pad with lateral buckling and by heat fusion joint respectively with right side pad 3 both sides of the edge; described second crease line 5 is vertical mutually with first crease line 4; average mark is furnished with and is convenient to the through hole 6 of electrolyte to utmost point group internal penetration on the pad 2 of described middle part; described through hole 6 is the circular hole shape; quantity is 12, and this moment, electrolyte was best to the effect of utmost point group internal penetration.
The above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications; the position that for example changes crease line makes the shape after left side pad, middle part pad and right side pad bend and waits that the shape that coats utmost point group adapts, and these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. energy work rate type inside lithium ion cell insulation protection pad; it is characterized in that: this insulation protection pad is divided into the left side pad by two first parallel crease lines on the described insulation protection pad; middle part pad and right side pad three parts; wherein the left side pad vertical with the middle part pad respectively with the right side pad and be positioned in the middle part of the pad homonymy; this left side pad; middle part pad and pad both sides of the edge, right side are respectively along two parallel same lateral bucklings of second crease line on the insulation protection pad; described second crease line is vertical mutually with first crease line, and described middle part pad is provided with is convenient to the through hole of electrolyte to utmost point group internal penetration.
2. energy work rate type inside lithium ion cell insulation protection pad according to claim 1, it is characterized in that: described through hole is the circular hole shape.
3. energy work rate type inside lithium ion cell insulation protection pad according to claim 1 and 2, it is characterized in that: described number of openings is 12.
4. energy work rate type inside lithium ion cell insulation protection pad according to claim 1, it is characterized in that: described insulation protection pad is a high-temperature insulation PP material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101796397A CN102280606A (en) | 2011-06-29 | 2011-06-29 | Insulating protection pad inside energy power type lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101796397A CN102280606A (en) | 2011-06-29 | 2011-06-29 | Insulating protection pad inside energy power type lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102280606A true CN102280606A (en) | 2011-12-14 |
Family
ID=45105899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101796397A Pending CN102280606A (en) | 2011-06-29 | 2011-06-29 | Insulating protection pad inside energy power type lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102280606A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633310A (en) * | 2016-03-28 | 2016-06-01 | 宁德时代新能源科技股份有限公司 | Secondary battery top cover assembly, secondary battery containing same and assembling method |
| US10700314B2 (en) | 2016-03-28 | 2020-06-30 | Contemporary Amperex Technolog Co., Limited | Secondary battery head cover assembly, secondary battery including the same and assembling method thereof |
| US10763465B2 (en) | 2016-03-28 | 2020-09-01 | Contemporary Amperex Technology Co., Limited | Secondary battery head cover assembly, secondary battery including the same and assembling method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060024568A1 (en) * | 2004-07-28 | 2006-02-02 | Lee Sang-Won | Rechargeable battery |
| CN101322278A (en) * | 2005-12-02 | 2008-12-10 | 三菱自动车工业株式会社 | Lithium ion secondary battery |
-
2011
- 2011-06-29 CN CN2011101796397A patent/CN102280606A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060024568A1 (en) * | 2004-07-28 | 2006-02-02 | Lee Sang-Won | Rechargeable battery |
| CN101322278A (en) * | 2005-12-02 | 2008-12-10 | 三菱自动车工业株式会社 | Lithium ion secondary battery |
| US20100227216A1 (en) * | 2005-12-02 | 2010-09-09 | Yuki Tominaga | Lithium ion rechargeable cell |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633310A (en) * | 2016-03-28 | 2016-06-01 | 宁德时代新能源科技股份有限公司 | Secondary battery top cover assembly, secondary battery containing same and assembling method |
| US10128472B2 (en) | 2016-03-28 | 2018-11-13 | Contemporary Amperex Technology Co., Limited | Secondary battery head cover assembly, secondary battery including the same and assembling method thereof |
| CN109037509A (en) * | 2016-03-28 | 2018-12-18 | 宁德时代新能源科技股份有限公司 | Secondary battery top cover assembly, secondary battery containing same and assembling method |
| US10700314B2 (en) | 2016-03-28 | 2020-06-30 | Contemporary Amperex Technolog Co., Limited | Secondary battery head cover assembly, secondary battery including the same and assembling method thereof |
| US10763465B2 (en) | 2016-03-28 | 2020-09-01 | Contemporary Amperex Technology Co., Limited | Secondary battery head cover assembly, secondary battery including the same and assembling method thereof |
| CN109037509B (en) * | 2016-03-28 | 2020-10-23 | 宁德时代新能源科技股份有限公司 | Secondary battery top cover assembly, secondary battery containing same and assembling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101944638B (en) | Manufacturing method of lithium-ion battery pack used for electric automobile | |
| JP5990619B2 (en) | Battery device having high energy density and high power density | |
| CN102013513A (en) | Lithium ion power battery with bidirectional current collectors | |
| CN203574066U (en) | Lithium ion battery with multi-core structure | |
| CN102035020A (en) | Novel lager-capacity lithium ion battery | |
| CN201536122U (en) | Connecting element for large-current round lithium ion battery pack | |
| CN102945929B (en) | Multi-pole-set battery and manufacture method thereof | |
| EP2782166B1 (en) | Electrode sheet comprising notched portion | |
| CN102683755A (en) | Novel high-voltage lithium-ion power battery | |
| CN201387915Y (en) | Improved polymer lithium ion battery structure | |
| CN102280606A (en) | Insulating protection pad inside energy power type lithium ion battery | |
| CN102810699B (en) | Integrated automotive lithium-ion power battery and making method thereof | |
| CN203119042U (en) | Lithium ion battery | |
| CN103682446A (en) | Lithium ion battery pack assembly module | |
| CN202871922U (en) | Assembly module of lithium ion battery pack | |
| CN202231087U (en) | Power polymer lithium ion battery | |
| CN103296305B (en) | Lithium ion battery | |
| CN201877491U (en) | Novel high-capacity lithium ion battery | |
| CN105655651A (en) | Articulated reeling structure of U shaped busbar of lithium ion battery | |
| CN202585616U (en) | Lithium ion battery and pole piece structure thereof | |
| CN202405358U (en) | Span bridge conjoining structure for multiple monomer lead acid storage batteries | |
| CN201289891Y (en) | Internal uniform radiating structure of square power lithium ion battery pole group | |
| CN201877530U (en) | Lithium ion power battery with bidirectional current collectors | |
| CN201804941U (en) | Part capable of repeatedly charging and discharging lithium battery | |
| CN102593504A (en) | Long-life lithium iron phosphate/hard carbon flexible package lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |