CN207116559U - Cell and power-supply device - Google Patents
Cell and power-supply device Download PDFInfo
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- CN207116559U CN207116559U CN201721155720.0U CN201721155720U CN207116559U CN 207116559 U CN207116559 U CN 207116559U CN 201721155720 U CN201721155720 U CN 201721155720U CN 207116559 U CN207116559 U CN 207116559U
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- Prior art keywords
- valve body
- valve
- battery
- valve block
- cell
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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
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Abstract
The utility model provides a kind of cell and power-supply device, is related to battery manufacturing process technical field.The cell includes battery body and is arranged on the valve body of described battery body one end, and the valve body includes the valve body framework with the first relief hole and the valve block being connected with the valve body framework.The valve body framework is electrically connected with by the valve block and the battery body, the valve block is used to block first relief hole, and melted when temperature exceedes first threshold, so that it is in communication with the outside inside battery body by the first relief hole, to reduce the pressure inside battery body, avoid battery body from being exploded because of high temperature, improve the security and reliability of cell.
Description
Technical field
Battery manufacturing process technical field is the utility model is related to, is set in particular to a kind of cell and power supply
It is standby.
Background technology
With the development of new energy technology, the manufacture to battery requires more and more higher.Such as in lithium battery industry, lithium electricity
Pond monomer occur internal short-circuit, external short circuit, overcharge, outside when by high temperature (such as more than 160 DEG C), in battery
Portion can produce violent chemical reaction, bring substantial amounts of gas and drastically raised with battery core temperature, internal pressure increase.Due to
The case material of duricrust lithium battery is generally box hat or aluminum hull, as internal pressure can not be discharged in time, may cause monomer
Battery core explode, and involve periphery cell formed it is chain out of control.
Therefore, how to provide a kind of cell of above-mentioned technical problem and power-supply device of solving turns into this area skill
The technical problem of art personnel's urgent need to resolve.
Utility model content
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of monomer electricity simple in construction, practical
Pond and power-supply device, by the gases at high pressure for battery core of being released in high temperature, and then solve the above problems.
To achieve these goals, the technical scheme that the utility model preferred embodiment is provided is as follows：
The utility model preferred embodiment provides a kind of cell, and the cell includes battery body and setting
Valve body in described battery body one end, the valve body include with the first relief hole valve body framework and with the valve body frame
The valve block of frame connection, the valve body framework are electrically connected with by the valve block and the battery body, and the valve block is used to block
First relief hole, and melted when temperature exceedes first threshold so that let out inside the battery body by described first
Pressure hole is in communication with the outside.
In the utility model from preferred embodiment, one end of above-mentioned battery body is provided with electrical with the battery body
The lug of connection, the valve block are electrically connected with by the lug and the battery body, and the lug is in temperature more than second
Fused during threshold value, to prevent the battery body internal short-circuit.
In the utility model from preferred embodiment, above-mentioned battery body includes battery core bodies and shell, the casing
It is located in the battery core bodies, one end of the shell offers opening, and the lug is arranged on battery core bodies close to the opening
Side.
In the utility model from preferred embodiment, above-mentioned shell is reserved with the one end for being provided with the opening for holding
The space of the valve body is put, the shell passes through battery core bodies described in the valve seal.
In the utility model from preferred embodiment, above-mentioned valve body also includes connection sheet, and the connection sheet offers second
Relief hole, the lug and the side of the connection sheet are electrically connected with, and the opposite side of the connection sheet electrically connects with the valve block
Connect.
In the utility model from preferred embodiment, above-mentioned valve body also includes conductive cover, is set in the conductive cover
There is the 3rd relief hole, and conductive cover protrudes from the battery body.
In the utility model from preferred embodiment, above-mentioned valve body also includes insulated enclosure circle, and the insulated enclosure circle is used
In isolating the valve body and the shell, the insulated enclosure circle parcel set the conductive cover, the valve body framework and
The edge of the valve block three.
In the utility model from preferred embodiment, above-mentioned battery body is cylindrical structural, the valve body framework be with
The wafer architecture that the cylindrical structural is engaged, at least one first relief hole, institute are provided with the wafer architecture
State valve block to be laid on the wafer architecture, and block each first relief hole.
In the utility model from preferred embodiment, above-mentioned valve body framework and the valve block are the different conduction of two kinds of fusing points
Metal, wherein, the fusing point of conducting metal corresponding to the valve body framework is higher than the fusing point of conducting metal corresponding to the valve block.
Preferred embodiment of the present utility model provides a kind of power-supply device, and the power-supply device includes flow collection sheet and multiple
Above-mentioned cell, multiple cells are connected by the flow collection sheet and/or in parallel formed presets rated output power
Power supply.
For prior art, cell and power-supply device provided by the utility model at least have beneficial below
Effect：By setting valve body in one end of battery body, valve body includes valve body framework and valve block with the first relief hole, valve
Piece is arranged on valve body framework, and blocks the first relief hole.Wherein, valve block melts when temperature exceedes first threshold, makes battery
Body interior is in communication with the outside by the first relief hole, to reduce the pressure inside battery body, avoids battery body because of high temperature
And explode, improve the security and reliability of cell.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, the utility model cited below particularly compared with
Good embodiment, and accompanying drawing appended by cooperation, are described in detail below.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described.It should be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation for the cell that the utility model preferred embodiment provides.
Fig. 2 is the explosive view for the cell that the utility model preferred embodiment provides.
Fig. 3 is one of explosive view of valve body that the utility model preferred embodiment provides.
Fig. 4 is the two of the explosive view for the valve body that the utility model preferred embodiment provides.
Fig. 5 is the structural representation for the power-supply device that the utility model preferred embodiment provides.
Icon：100- cells；110- battery bodies；111- shells；112- battery core bodies；113- lugs；120- valve bodies；
121- valve body frameworks；122- valve blocks；The relief holes of 123- first；125- connection sheets；The relief holes of 126- second；127- conductive covers；
The relief holes of 128- the 3rd；129- insulated enclosure circles；131- insulating spacers；200- power-supply devices；210- flow collection sheets.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.Obviously, described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.The component of the utility model embodiment being generally described and illustrated herein in the accompanying drawings can be matched somebody with somebody with a variety of
Put to arrange and design.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based on reality of the present utility model
Example is applied, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, is belonged to
The scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " in ", " on ", " under ", " level ", " interior ", " outer "
Deng instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product use
When the orientation usually put or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or
Imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that
To limitation of the present utility model.In addition, term " first ", " second " etc. be only used for distinguish description, and it is not intended that instruction or
Imply relative importance.
In addition, the term such as term " level ", " vertical " is not offered as requiring part abswolute level or pendency, but can be slightly
Low dip.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent that the structure must be complete
It is complete horizontal, but can be slightly tilted.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " is set in description of the present utility model
Put ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection.Can be mechanical connection or electric connection.Can be joined directly together, the indirect phase of intermediary can also be passed through
Even, can be the connection of two element internals.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
Concrete meaning of the term in the utility model.
Below in conjunction with the accompanying drawings, some embodiments of the present utility model are elaborated.In the case where not conflicting, under
Feature in the embodiment and embodiment stated can be mutually combined.
First embodiment：
Incorporated by reference to referring to Figures 1 and 2, wherein, Fig. 1 is the cell 100 that the utility model preferred embodiment provides
Structural representation, Fig. 2 are the explosive view for the cell 100 that the utility model preferred embodiment provides.The utility model provides
A kind of cell 100, the cell 100 can include battery body 110 and valve body 120.The valve body 120 can include valve
Body framework 121 and valve block 122, wherein, valve body framework 121 has the first relief hole 123.Valve block 122 is laid in valve body framework
On 121, and close to the side of battery body 110, for blocking first relief hole 123.Valve block 122 is in temperature more than first
Melted during threshold value so that be in communication with the outside inside battery body 110 by the first relief hole 123, reach battery body 110 of releasing
The purpose of internal gases at high pressure, avoids battery body 110 from being exploded because of high temperature.
Further, valve body framework 121 is respectively provided with good electric conductivity with valve block 122, and valve body framework 121 passes through valve block
122 are electrically connected with battery body 110.That is, valve body framework 121 can be as the exit of the electric current of cell 100.Work as valve block
When 122 electric currents flowed through are excessive, big calorimetric will be produced and valve block 122 is heated up.When the temperature of valve block 122 exceedes first threshold
When, just start to melt, expose the first relief hole 123 so as to stay.Wherein, first threshold can be according to the composition material of valve block 122
Fusing point be configured, be not especially limited here.
Understandably, if the upright placement in the manner shown in fig. 1 of cell 100, valve block 122 in fusion process, if
Valve block 122 is positioned close to the side of battery body 110, because of Action of Gravity Field, will depart from valve body framework 121, and then stay dew
Go out the first relief hole 123.
In other embodiments, valve block 122 can also be arranged on valve body framework 121 away from the battery body 110
Side, and the exit using valve block 122 as the electric current of cell 100.When valve block 122 temperature exceed first threshold (such as
Raise the temperature of valve block 122 because of short circuit), during valve block 122 melts, in the anticyclonic effect in the inside of battery body 110
Under, valve block 122 can rupture exposes the first relief hole 123 to stay, and the high temperature and high pressure gas in battery body 110 can be by splitting
Seam is discharged into the external world, reaches pressure release purpose, avoids cell 100 from exploding.
Fig. 3 is refer to, is one of the explosive view of valve body 120 that the utility model preferred embodiment provides.In the present embodiment
In, at least one first relief hole 123 is offered on valve body framework 121.The quantity of first relief hole 123 can be as the case may be
It is configured, is not especially limited here.
Further, the bulge-structure being engaged with first relief hole 123 can be provided with the valve block 122,
When the valve block 122 is arranged on valve body framework 121, bulge-structure blocks the first relief hole 123, to improve cell
100 air-tightness, make to maintain in the range of certain pressure intensity inside battery body 110, help to extend the use of cell 100
Life-span, while can also avoid electrolyte solution from revealing.
In the present embodiment, the valve body framework 121 and the valve block 122 can be the conductive gold that two kinds of fusing points are different
Category.Wherein, the fusing point of conducting metal corresponding to the valve body framework 121 is molten higher than conducting metal corresponding to the valve block 122
Point.For example the valve block 122 is formed by tin, the material of formation valve body framework 121, which can be that the fusing points such as aluminium, copper are higher than tin, leads
Electric metal.Preferably, the valve body framework 121 is formed by aluminum or aluminum alloy material.
Certainly, the material for forming the valve block 122 can also be other materials, such as tin alloy.It is intelligible, tin alloy
It is made up of tin and other one or more metals, its alloying element can be the one or more in lead, antimony, copper.Wherein, tin closes
Jin Zhongxi and different metal mix according to different ratios, can form the different tin alloy of fusing point.Understandably, when valve block 122
It is that the fusing point of tin alloy is the first threshold to be formed for tin alloy material.If namely the temperature of valve block 122 exceed this
One threshold value, just start to melt.
Specifically, for the fusing point of conventional tin alloy typically at 183 DEG C -300 DEG C, the fusing point of other tin alloys can be no longer above-mentioned
Within the temperature range of, it is not especially limited here.In addition, tin and tin alloy have, fusing point is low, and low intensity and hardness are low, it have compared with
The advantages that high thermal conductivity and relatively low thermal coefficient of expansion, the material for the valve block 122 for being highly suitable as being formed in the present embodiment.
In the present embodiment, valve body framework 121 can be connected with valve block 122 by way of resistance welding, can also be straight
Connecting composite rolling technique makes valve body framework 121 be combined with 122 corresponding metal in close of valve block, to realize connection.It is appreciated that
Ground, the thinner thickness of valve block 122, it is not easy to other connection ends (such as conductor wire) connect directly as the output end of power supply
Connect, it is necessary to depend on other structures (such as valve body framework 121), and make the output end of the power supply with other structures.And set
Valve body framework 121 can be used for fixed described valve block 122, can be used as the output end of power supply.
In the present embodiment, battery body 110 can be cylindrical structural, and valve body framework 121 is and the cylindrical structure phase
The wafer architecture of cooperation.At least one first relief hole 123 is provided with the wafer architecture, forms framework.Such as at this
Three are opened up on wafer architecture in fan-shaped relief holes, three fan-shaped relief holes being distributed on wafer architecture radially.
The valve block 122 is laid on the wafer architecture, and blocks each relief hole.
It should be noted that in other real-time modes, battery body 110 can also be to be tied different from above-mentioned cylinder
Structure.For example battery body 110 can be rectangular parallelepiped structure, be not specifically limited herein.
In the present embodiment, the cell 100 is dry cell, lithium battery, lead accumulator etc..The lithium ion battery
Cobalt acid lithium battery, lithium manganate battery, ferric phosphate lithium cell etc. are may be, but not limited to, is not specifically limited herein.
Second embodiment：
Incorporated by reference to reference picture 2 and Fig. 4, wherein, Fig. 4 is the blast for the valve body 120 that the utility model preferred embodiment provides
The two of figure.Cell 100 its shape design, operation principle and the technique effect of acquirement that second embodiment provides and the first reality
The essentially identical of example offer is applied, difference is, one end of battery body 110 can be provided with and the battery body 110
The lug 113 of electric connection.Valve block 122 is electrically connected with by the lug 113 and the battery body 110, the lug 113
Fused when temperature exceedes Second Threshold, to prevent the internal short-circuit of battery body 110, further improve cell 100
Security performance.
Further, the lug 113 can be laminated structure, and the geomery of the laminated structure can be according to actual conditions
It is configured, its thickness and width can be used for determining the maximum current value for allowing to flow through the lug 113, that is, fusing electricity
Stream.The material for forming the lug 113 can be the metal relatively low with the 122 same or similar fusing point of valve block, that is, the
Two threshold values can be configured as the case may be, can be identical with first threshold, can also be higher or lower than first threshold, herein
It is not especially limited.
In a second embodiment, battery body 110 can include battery core bodies 112 and shell 111,111 sets of the shell
It is located in the battery core bodies 112, one end of the shell 111 offers opening, and the lug 113 is arranged on battery core bodies 112 and leaned on
The side of the nearly opening.Wherein, the shell 111 can be used for protecting battery core bodies 112.
Further, shell 111 is reserved with the space for housing the valve body 120, institute in the one end for being provided with opening
State shell 111 and the battery core bodies 112 are sealed by the valve body 120, to improve battery core bodies 112 in normal charge and discharge process
Air-tightness.
In a second embodiment, valve body 120 may also include connection sheet 125, and the connection sheet 125 offers the second relief hole
126, the lug 113 and the side of the connection sheet 125 are electrically connected with, opposite side and the valve block of the connection sheet 125
122 are electrically connected with.The connection sheet 125 of setting helps to connect lug 113 and valve block 122, and its mode connected can be
It is attached by electric resistance welding.
In a second embodiment, the valve body 120 may also include conductive cover 127, is provided with the conductive cover 127
3rd relief hole 128, and conductive cover 127 protrudes from the battery body 110.Conductive cover 127 can be used for protection setting
Valve block 122, while protrude from output end of the position of battery body 110 as the electric current of cell 100, contribute to and its
He connects connection end, such as, it is connected with conductor wire.
In a second embodiment, valve body 120 may also include insulated enclosure circle 129, and the insulated enclosure circle 129 is used to isolate
The valve body 120 and the shell 111, the parcel of insulated enclosure circle 129 set the conductive cover 127, the valve body frame
Frame 121 and the edge of the three of the valve block 122.
Further, form insulated enclosure circle 129 material can with flexible function, to strengthen sealing effectiveness, such as
Rubber.Wherein, the inner side of insulated enclosure circle 129 is offered for wrapping up conductive cover 127, valve body framework 121, valve block 122 3
The groove at person edge, further to strengthen sealing effectiveness.
In other embodiments, cell 100 can also include insulating spacer 131, and the insulating spacer 131 is arranged on electricity
Pond body 110 is provided with the side of lug 113, and offers the through hole passed for lug 113, for by valve body 120 with it is described
Battery core bodies 112 are dielectrically separated from, so that electric current flows out via lug 113, connection sheet 125, the valve body framework 121 of valve block 122, are carried
The security of high monomer battery 100, electric current is avoided directly to be exported without lug 113.
3rd embodiment：
Fig. 5 is refer to, is the structural representation for the power-supply device 200 that the utility model preferred embodiment provides.3rd is real
Apply example and a kind of power-supply device 200, including the cell 100 in flow collection sheet 210 and multiple above-described embodiments are provided.Multiple lists
Body battery 100 is connected by the flow collection sheet 210 and/or the power supply electricity in parallel for forming power supply, for example forming electric automobile
Source.
Specifically, multiple cells 100 can according to default rated output power carry out serial or parallel connection, or series connection and
Parallel connection is combined, to form required power supply.Wherein, default rated output power can be configured as the case may be,
This is not specifically limited.
Based on above-mentioned design, if fail battery be present, the fail battery can pass through valve block when temperature exceedes first threshold
122 fusings, realize releasing for high temperature and high pressure gas to open relief hole, avoid fail battery from exploding, and week will be had influence on by exploding
Side battery.That is, the power-supply device 200 has higher safety and reliability.
In summary, the utility model provides a kind of cell and power-supply device.The cell and power-supply device lead to
Cross and valve body is set in one end of battery body, valve body includes valve body framework and valve block with the first relief hole, and valve block is set
On valve body framework, and block the first relief hole.Wherein, valve block melts when temperature exceedes first threshold, makes in battery body
Portion is in communication with the outside by the first relief hole, to reduce the pressure inside battery body, avoids battery body from being exploded because of high temperature,
Improve the security and reliability of cell.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of cell, it is characterised in that the cell includes battery body and is arranged on the battery body
The valve body of one end, the valve body include the valve body framework with the first relief hole and the valve block being connected with the valve body framework,
The valve body framework is electrically connected with by the valve block and the battery body, and the valve block is used to block first pressure release
Hole, and melted when temperature exceedes first threshold so that connected inside the battery body by first relief hole with extraneous
It is logical.
2. cell according to claim 1, it is characterised in that one end of the battery body is provided with and the electricity
The lug that pond body is electrically connected with, the valve block are electrically connected with by the lug and the battery body, and the lug is in temperature
Degree fuses when exceeding Second Threshold, to prevent the battery body internal short-circuit.
3. cell according to claim 2, it is characterised in that the battery body includes battery core bodies and shell,
The shell is set in the battery core bodies, and one end of the shell offers opening, and it is close that the lug is arranged on battery core bodies
The side of the opening.
4. cell according to claim 3, it is characterised in that the shell is pre- in the one end for being provided with the opening
The space for housing the valve body is left, the shell passes through battery core bodies described in the valve seal.
5. cell according to claim 2, it is characterised in that the valve body also includes connection sheet, the connection sheet
Offer the second relief hole, the lug and the side of the connection sheet are electrically connected with, the opposite side of the connection sheet with it is described
Valve block is electrically connected with.
6. cell according to claim 3, it is characterised in that the valve body also includes conductive cover, the conduction
The 3rd relief hole is provided with lid, and conductive cover protrudes from the battery body.
7. cell according to claim 6, it is characterised in that the valve body also includes insulated enclosure circle, described exhausted
Edge sealing ring is used to isolate the valve body and the shell, and the insulated enclosure circle parcel sets the conductive cover, the valve
Body framework and the edge of the valve block three.
8. cell according to claim 1, it is characterised in that the battery body is cylindrical structural, the valve
Body framework is the wafer architecture being engaged with the cylindrical structural, and at least one described first is provided with the wafer architecture
Relief hole, the valve block are laid on the wafer architecture, and block each first relief hole.
9. cell according to claim 1, it is characterised in that the valve body framework and the valve block are two kinds of fusing points
Different conducting metals, wherein, the fusing point of conducting metal corresponding to the valve body framework is higher than conductive gold corresponding to the valve block
The fusing point of category.
10. a kind of power-supply device, it is characterised in that the power-supply device includes flow collection sheet and multiple the claims 1-9
Cell described in middle any one, multiple cells are connected by the flow collection sheet and/or formation in parallel is default specified
The power supply of power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721155720.0U CN207116559U (en) | 2017-09-08 | 2017-09-08 | Cell and power-supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721155720.0U CN207116559U (en) | 2017-09-08 | 2017-09-08 | Cell and power-supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116559U true CN207116559U (en) | 2018-03-16 |
Family
ID=61588182
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721155720.0U Active CN207116559U (en) | 2017-09-08 | 2017-09-08 | Cell and power-supply device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019179206A1 (en) * | 2018-03-23 | 2019-09-26 | Chongqing Jinkang New Energy Vehicle Co., Ltd. | Battery cell for an electric vehicle battery pack |
| US20200028134A1 (en) * | 2018-07-18 | 2020-01-23 | Sf Motors, Inc. | Battery cell for an electric vehicle battery pack |
| EP3836298A1 (en) * | 2019-12-13 | 2021-06-16 | Proterra Inc. | Battery vent system |
| CN115117527A (en) * | 2022-06-06 | 2022-09-27 | 宜兴市泰宇汽车零部件有限公司 | Compound EPP battery apron with fire-retardant dampproofing effect ventilates |
-
2017
- 2017-09-08 CN CN201721155720.0U patent/CN207116559U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019179206A1 (en) * | 2018-03-23 | 2019-09-26 | Chongqing Jinkang New Energy Vehicle Co., Ltd. | Battery cell for an electric vehicle battery pack |
| CN111712947A (en) * | 2018-03-23 | 2020-09-25 | 重庆金康新能源汽车有限公司 | Battery cell of electric vehicle battery pack |
| US20200028134A1 (en) * | 2018-07-18 | 2020-01-23 | Sf Motors, Inc. | Battery cell for an electric vehicle battery pack |
| EP3836298A1 (en) * | 2019-12-13 | 2021-06-16 | Proterra Inc. | Battery vent system |
| US11374284B2 (en) | 2019-12-13 | 2022-06-28 | Proterra Operating Company, Inc. | Battery vent system |
| CN115117527A (en) * | 2022-06-06 | 2022-09-27 | 宜兴市泰宇汽车零部件有限公司 | Compound EPP battery apron with fire-retardant dampproofing effect ventilates |
| CN115117527B (en) * | 2022-06-06 | 2024-03-08 | 宜兴市泰宇汽车零部件有限公司 | Composite EPP battery cover plate with ventilation, flame retardance and moisture resistance effects |
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Address after: 230000 Anhui Hefei economic and Technological Development Zone, Xin Xin Road, No. 62 power battery factory Patentee after: Huating (Hefei) Power Technology Co., Ltd. Address before: 230000 No. 26, No. 5, Tsing Luen Road, Hefei economic and Technological Development Zone, Anhui Patentee before: Huating (Hefei) Power Technology Co., Ltd. |
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| CP02 | Change in the address of a patent holder |