CN208478442U - Encapsulating power battery pack and lithium ion battery packet - Google Patents
Encapsulating power battery pack and lithium ion battery packet Download PDFInfo
- Publication number
- CN208478442U CN208478442U CN201821254336.0U CN201821254336U CN208478442U CN 208478442 U CN208478442 U CN 208478442U CN 201821254336 U CN201821254336 U CN 201821254336U CN 208478442 U CN208478442 U CN 208478442U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- power battery
- potted power
- battery
- module box
- 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
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 22
- 238000004382 potting Methods 0.000 claims description 20
- 239000000565 sealant Substances 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 239000003063 flame retardant Substances 0.000 abstract description 4
- 229940126214 compound 3 Drugs 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a kind of encapsulating power battery pack and lithium ion battery packet, wherein, encapsulating power battery pack includes module case, multiple lithium batteries and casting glue, wherein, module case has an accommodating chamber in it, multiple lithium batteries are extended in upward and downward, and battery assembly module is formed by going here and there and/or being connected in parallel, battery assembly module is set to the inner wall setting in accommodating chamber and being spaced accommodating chamber, casting glue is filled in accommodating chamber, and in package battery assembly module setting, battery assembly module is fixed on module case.The inner wall of battery assembly module interval accommodating chamber is arranged, so that using encapsulating glue connection between battery assembly module and module case, casting glue has preferable insulation, thermally conductive, fire-retardant, anti-electrolyte leakage and buffering anti-seismic performance, so that battery assembly module has preferable fixed form, it adapts to encapsulating power battery pack and is used in more complex operating condition, there is preferable effect.
Description
Technical Field
The utility model relates to a lithium cell technical field, in particular to embedment power battery group and lithium ion battery package.
Background
The lithium battery is used as a power assembly of the electric automobile, and in the processes of charging and discharging, collision, wading and the like of the electric automobile, the lithium battery is subjected to the leaping and extrusion of a system to cause the phenomena of battery short circuit, cracking, electric leakage, thermal shock, explosion, combustion and the like, so that the lithium battery needs to be fixed in a better fixing mode.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an embedment power battery group and lithium ion battery package aims at optimizing the fixed mode of lithium cell.
In order to achieve the above object, the utility model provides an embedment power battery group, include:
the module box is internally provided with an accommodating cavity;
the lithium batteries extend upwards and downwards and are connected in series and/or in parallel to form a battery pack unit, and the battery pack unit is arranged in the accommodating cavity and is arranged at intervals on the inner wall of the accommodating cavity; and the number of the first and second groups,
and the pouring sealant is filled in the accommodating cavity and wraps the battery pack unit, so that the battery pack unit is fixed on the module box.
Preferably, a plurality of lithium batteries are arranged side by side, and the side surfaces of any two adjacent lithium batteries are abutted.
Preferably, a filling gap is formed between the battery pack unit and the inner wall of the module case, the filling gap including a side filling gap section between the side surface of the battery pack unit and the side wall surface of the accommodation cavity, and an under filling gap section between the lower end surface of the battery pack unit and the bottom wall surface of the accommodation cavity;
the potted power battery pack also includes a support material disposed in the side-fill gap segment and/or the underfill gap segment.
Preferably, the thickness of the side filling gap section is 0.2 mm-10 mm; and/or the presence of a gas in the gas,
the thickness of the bottom filling gap section is 0.2 mm-10 mm.
Preferably, the impedance Z of the cured potting adhesive is greater than 2M omega.
Preferably, the support material is EVA sponge.
Preferably, the fire-proof grade of the cured potting adhesive is UL94-V0 grade; or,
the heat conductivity coefficient of the solidified potting adhesive is 0.4-2.0W/(m.K); or,
the hardness of the solidified potting adhesive is HA 10-HA 60.
Preferably, the pouring sealant is made of AB glue; or,
the module box is made of iron.
Preferably, the inner wall surface of the module box is convexly and concavely arranged at the position where the pouring sealant is correspondingly arranged.
The utility model discloses still provide a lithium ion battery package, including embedment power battery group, embedment power battery group includes:
the module box is internally provided with an accommodating cavity;
the lithium batteries extend upwards and downwards and are connected in series and/or in parallel to form a battery pack unit, and the battery pack unit is arranged in the accommodating cavity and is arranged at intervals on the inner wall of the accommodating cavity; and the number of the first and second groups,
and the pouring sealant is filled in the accommodating cavity and wraps the battery pack unit, so that the battery pack unit is fixed on the module box.
The utility model provides an among the technical scheme, through the casting glue fill in hold the intracavity, and be the parcel the group battery unit sets up, will the group battery unit is fixed in the module box, the group battery unit interval the inner wall setting that holds the chamber makes the group battery unit with connect with the casting glue between the module box, the casting glue has better insulation, heat conduction, fire-retardant, prevents that the electrolyte reveals and buffering anti-seismic performance, makes the group battery unit has better fixed mode, adapts to embedment power battery uses in more complicated operating mode, has better effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic front view of an embodiment of a potted power battery pack according to the present invention;
fig. 2 is a schematic top view of the potted power cell pack of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Potted power battery pack | 22 | Filling the gap |
| 1 | Module box | 221 | Side-filling gap segment |
| 11 | Containing cavity | 222 | Underfill gap segment |
| 2 | Battery pack unit | 3 | Pouring sealant |
| 21 | Lithium battery | 4 | Support material |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a lithium ion battery package, lithium ion battery package includes embedment power battery group, as long as it has the lithium ion battery package of embedment power battery group all is the utility model discloses an content, figure 1 to figure 2 do the utility model provides an embodiment of embedment power battery group.
Referring to fig. 1 to 2, the potting power battery pack 100 includes a module box 1, a plurality of lithium batteries 21 and a potting adhesive 3, wherein the module box 1 (in the embodiment of the present invention, the material of the module box 1 may be a material iron with a low cost, specifically, Q235 carbon steel, which is easily available and has a low manufacturing cost) has a containing cavity 11 therein, the lithium batteries 21 are all arranged in an up-down extending manner, and form a battery pack unit 2 through a series and/or parallel connection, the battery pack unit 2 is disposed in the containing cavity 11 and spaced from the inner wall of the containing cavity 11, and the potting adhesive 3 (in the embodiment, the potting adhesive 3 is an AB adhesive) is filled in the containing cavity 11 and wraps up the battery pack unit 2, so as to fix the battery pack unit 2 to the module box 1.
The utility model provides an among the technical scheme, through potting compound 3 fill in hold the intracavity 11, and be the parcel group battery unit 2 sets up, will group battery unit 2 is fixed in module box 1, 2 intervals in the group battery unit the inner wall setting that holds chamber 11 makes group battery unit 2 with connect with potting compound 3 between the module box 1, potting compound 3 has better insulation, heat conduction, fire-retardant, prevents that the electrolyte reveals and cushion anti-seismic performance, makes group battery unit 2 has better fixed mode, adapts to the use of embedment power battery group 100 has better effect in more complicated operating mode.
In this embodiment, since each of the lithium batteries 21 itself includes an insulating film, a plurality of the lithium batteries 21 can be arranged side by side in close proximity to each other to improve the energy distribution density of the encapsulated power battery pack in a unit volume, specifically, a plurality of the lithium batteries 21 are arranged side by side, and the side surfaces of any two adjacent lithium batteries 21 are abutted against each other.
The battery pack is generally formed by combining and/or stringing or placing the lithium batteries 21 together as required by adopting a positioning tool, then connecting sheets at two ends of the batteries respectively by using resistance welding or laser welding to form a battery pack unit 2, removing the positioning tool after the battery pack unit 2 has certain carrying or operating strength, and then placing the battery pack unit 2 in the module box 1 for potting treatment.
When the battery unit 2 is placed in the accommodating cavity 11, a support material 4 needs to be arranged to separate the battery unit 2 from the module box 1, so that after the potting is completed, the sealant enters the space between the battery unit 2 and the module box 1, specifically, a filling gap 22 is formed between the battery unit 2 and the inner wall of the module box 1, the filling gap 22 includes a side filling gap section 221 between the side surface of the battery unit 2 and the side wall surface of the accommodating cavity 11 (in this embodiment, the thickness of the side filling gap section 221 is 0.2mm to 10mm), and an underfill gap section 222 between the lower end surface of the battery unit 2 and the bottom wall surface of the accommodating cavity 11 (in this embodiment, the thickness of the underfill gap section 222 is 0.2mm to 10mm), the potting power battery 100 further includes the support material 4, support material 4 is located side packing clearance section 221 and/or end packing clearance section 222, in this embodiment, support material 4 is the EVA sponge, the EVA sponge can play certain support the effect of group battery unit 2 is waited after pouring sealant 3 solidifies, the EVA sponge with pouring sealant 3 is integrative back, can play fine insulation, heat conduction, fire-retardant, prevent that the electrolyte reveals and buffering anti-seismic performance, has better effect.
The pouring sealant 3 HAs good insulation, heat conduction, flame retardance, electrolyte leakage prevention and buffering and anti-seismic performance after being cured, specifically, through testing, the impedance Z of the pouring sealant 3 after being cured is larger than 2M omega, the fire rating of the pouring sealant 3 after being cured is UL94-V0 level, the heat conductivity coefficient of the pouring sealant 3 after being cured is 0.4-2.0W/(m.K), the hardness of the pouring sealant 3 after being cured is HA 10-HA 60, and the above data respectively correspond to the insulation, flame retardance, heat conduction and buffering and anti-seismic performance of the pouring sealant 3 after being cured.
In order to strengthen the pouring sealant 3 with the bonding strength of module box 1, the embodiment of the utility model provides an in, the internal face of module box 1 is being equipped with in correspondence the position of pouring sealant 3 is the convex-concave setting, the convex-concave setting is equivalent to pouring sealant 3 with set up the shearing muscle between the internal face of module box 1, reduced pouring sealant 3 with the risk that module box 1 breaks away from.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A potted power battery, comprising:
the module box is internally provided with an accommodating cavity;
the lithium batteries extend upwards and downwards and are connected in series and/or in parallel to form a battery pack unit, and the battery pack unit is arranged in the accommodating cavity and is arranged at intervals on the inner wall of the accommodating cavity; and the number of the first and second groups,
and the pouring sealant is filled in the accommodating cavity and wraps the battery pack unit, so that the battery pack unit is fixed on the module box.
2. The potted power battery as defined in claim 1, wherein a plurality of said lithium batteries are arranged side by side and any two adjacent said lithium batteries are arranged in abutting relationship between side surfaces thereof.
3. The potted power battery of claim 1, wherein a fill gap is formed between the battery unit and the interior wall of the module box, the fill gap including a side fill gap segment between the battery unit side surface and the side wall surface of the receiving cavity and an underfill gap segment between the battery unit lower end surface and the receiving cavity bottom wall surface;
the potted power battery pack also includes a support material disposed in the side-fill gap segment and/or the underfill gap segment.
4. The potted power battery of claim 3, wherein the side fill gap segment has a thickness of 0.2mm to 10 mm; and/or the presence of a gas in the gas,
the thickness of the bottom filling gap section is 0.2 mm-10 mm.
5. The potted power battery of claim 4, wherein the impedance Z of the potting compound after curing is > 2M Ω.
6. The potted power cell of claim 3, wherein the support material is EVA sponge.
7. The potted power battery of claim 1, wherein the cured potting adhesive has a fire rating of UL 94-V0; or,
the heat conductivity coefficient of the solidified potting adhesive is 0.4-2.0W/(m.K); or,
the hardness of the solidified potting adhesive is HA 10-HA 60.
8. The potted power battery pack of claim 1, wherein the potting adhesive is an AB adhesive; or,
the module box is made of iron.
9. The potted power battery pack of claim 1, wherein the inner wall surface of the module box is convex-concave at a position corresponding to the potting adhesive.
10. A lithium ion battery pack comprising the potted power battery pack of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254336.0U CN208478442U (en) | 2018-08-03 | 2018-08-03 | Encapsulating power battery pack and lithium ion battery packet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254336.0U CN208478442U (en) | 2018-08-03 | 2018-08-03 | Encapsulating power battery pack and lithium ion battery packet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478442U true CN208478442U (en) | 2019-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821254336.0U Expired - Fee Related CN208478442U (en) | 2018-08-03 | 2018-08-03 | Encapsulating power battery pack and lithium ion battery packet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208478442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034257A (en) * | 2019-03-25 | 2019-07-19 | 深圳市依卓尔能源有限公司 | The encapsulating packaging method of underwater power source |
| CN110534674A (en) * | 2019-08-26 | 2019-12-03 | 杭州浩帆新能源技术有限公司 | A kind of lithium ion battery packet of internal encapsulating |
-
2018
- 2018-08-03 CN CN201821254336.0U patent/CN208478442U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034257A (en) * | 2019-03-25 | 2019-07-19 | 深圳市依卓尔能源有限公司 | The encapsulating packaging method of underwater power source |
| CN110534674A (en) * | 2019-08-26 | 2019-12-03 | 杭州浩帆新能源技术有限公司 | A kind of lithium ion battery packet of internal encapsulating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20190803 |