CN218586301U - Battery and power equipment - Google Patents
Battery and power equipment Download PDFInfo
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- CN218586301U CN218586301U CN202223120984.6U CN202223120984U CN218586301U CN 218586301 U CN218586301 U CN 218586301U CN 202223120984 U CN202223120984 U CN 202223120984U CN 218586301 U CN218586301 U CN 218586301U
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- fluid infusion
- battery
- infusion device
- electrolyte
- pole group
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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 relates to an energy battery technical field, concretely relates to battery and power equipment, this battery includes: a housing; the battery cell pole group is arranged in the shell, and an installation gap is formed between the battery cell pole group and the inner wall of the shell; and the liquid supplementing device is arranged in the mounting gap, electrolyte is stored in the liquid supplementing device, and the liquid supplementing device is made of polymer. The utility model discloses a fluid infusion device utilizes self easy rupture characteristic to carry out the fluid infusion to electric core utmost point group, need not the pipeline and carry electrolyte, and the structure sets up simply, and establish in the installation clearance between electric core utmost point group and shells inner wall, do not occupy the external installation space, make the whole aesthetic property of battery good, the fluid infusion is efficient, can realize continuation fluid infusion.
Description
Technical Field
The utility model relates to an energy battery technical field, concretely relates to battery and power equipment.
Background
The cycle life of the lithium ion battery is positively correlated with the electrolyte retention amount in the battery, after long-time cycle charging and discharging, the electrolyte in the battery is redistributed, diffused and permeated into the deep layer of the pole piece, so that the electrolyte amount on the surface of the electrode is reduced, and along with the cycle, the electrolyte between the pole piece and the diaphragm is dried gradually, so that the ion conduction resistance and the migration resistance in the battery are increased, the concentration polarization resistance is increased, the charging potential of the battery is increased, the discharging potential is reduced, so that the cycle performance of the battery is reduced, the service life of the battery is shortened, and therefore, the timely supplement of the electrolyte for the battery in the middle and later periods is very important.
Current fluid infusion device is many in the outside setting of battery, through pipeline and battery inner chamber intercommunication, and the electrolyte in the fluid infusion device passes through the pipeline at middle and later stages and carries to battery inner chamber and realize the fluid infusion, but this fluid infusion device sets up complicacy, occupies external installation space, influences aesthetic property, fluid infusion inefficiency, can not last fluid infusion.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the liquid supplementing device of the battery among the prior art and setting up complicacy, occupy the defect that external installation space, fluid infusion are inefficient, can not last fluid infusion to a battery and power equipment of simple structure, province space, fluid infusion are efficient, sustainable fluid infusion are provided.
In order to solve the above problem, the utility model provides a battery, include: a housing; the battery core pole group is arranged in the shell, and an installation gap is formed between the battery core pole group and the inner wall of the shell; a fluid infusion device disposed within the mounting gap, the fluid infusion device having an electrolyte stored therein and being made of a polymer.
Optionally, the liquid replenishing device is disposed above, on a side edge or below the battery cell pole group; and/or fluid infusion device includes a plurality of independent and integrated into one piece's stock solution chamber, the stock solution chamber is followed the thickness or the length or the width direction of electric core utmost point group piles up the setting.
Optionally, the length of the shell is 100mm-1000mm, the height is 50mm-250mm, and the width is 20mm-100mm.
Optionally, the volume of the liquid supplementing device is 100mm 3 -1000mm 3 And the ratio of the volume of the fluid infusion device to the volume of the shell is 100: 250000.
Optionally, the liquid replenishing device is honeycomb-shaped.
Optionally, the fluid infusion device is made of hydrogel material.
Optionally, the battery further includes a fixing member, and the fluid infusion device is fixed to the battery cell pole group and/or the casing through the fixing member.
Optionally, the fixing member is an adhesive tape.
Optionally, a fluid infusion port is arranged on the housing.
The utility model also provides a power equipment, include the utility model discloses a battery.
The utility model has the advantages of it is following:
1. the utility model discloses a battery, in the installation clearance of fluid infusion device setting between electric core utmost point group and shells inner wall, and the storage has electrolyte in the fluid infusion device, in the long-time charge-discharge cycle middle and later stages of battery, electric core utmost point group thermal expansion extrudees the fluid infusion device, because the fluid infusion device is made by the polymer, the pressurized easy emergence is cracked, electrolyte outflow and the flow in electric core utmost point inter block chamber of fluid infusion in the fluid infusion device after breaking carry out automatic fluid infusion, slow down electric core impedance increase rate, improve battery cycle performance, the life of extension battery, therefore, the utility model discloses a fluid infusion device utilizes self easy rupture characteristic to carry out automatic fluid infusion, need not the pipeline and carry electrolyte, the structure sets up simply, and the fluid infusion is efficient and can receive the extrusion degree according to the fluid infusion device and realize lasting fluid infusion, and the fluid infusion device is established in the installation clearance between electric core utmost point group and shells inner wall, do not occupy external installation space, make the battery wholly aesthetic property good.
2. The utility model discloses a battery, fluid infusion device can set up in the top of electric core utmost point group to break the back at the fluid infusion device, do benefit to electrolyte from last to flowing extremely down to electric core utmost point in organizing, reinforcing fluid infusion effect.
3. The utility model discloses a battery, fluid infusion device include a plurality of independent and integrated into one piece's stock solution chamber. When receiving electric core utmost point group extrusion, the pressure difference that every stock solution chamber received makes the rupture time different, can be according to inflation extrusion degree, and the stock solution chamber is successively ruptured, and the continuation adds appropriate amount electrolyte for electric core utmost point group, has both prolonged the fluid infusion time, has also avoided disposable too much electrolyte of mending, effectively strengthens electrolyte fluid infusion effect, extension battery cycle performance.
4. The utility model discloses a battery, the thickness or length or the width direction of liquid storage chamber edge electric core utmost point group pile up the setting. The stock solution chamber that piles up the setting can be according to electric core utmost point group inflation and according to receiving the extrusion degree, progressively breaks like domino, realizes adding electrolyte gradually and continuously, and the degree of compression is big promptly, the stock solution chamber breaks much, and the electrolyte replenishment is big, otherwise, the degree of compression is little, the stock solution chamber breaks fewly, and the electrolyte replenishment is just little to make this battery can carry out the self-adaptation adjustment of fluid infusion volume according to the degree of compression, avoided the condition of once filling in too much electrolyte.
5. The utility model discloses a battery, fluid infusion device are the aquogel material, and the fluid infusion device of aquogel material is heated the pressurized and is easily cracked, ensures timely fluid infusion.
6. The utility model discloses a battery still includes the mounting, and the fluid infusion device avoids the fluid infusion device to remove in the casing on being fixed in electric core utmost point group and/or casing through the mounting, ensures the accuracy of fluid infusion position.
7. The utility model discloses a battery is equipped with fluid infusion mouth on the casing. The utility model discloses a battery can be through fluid infusion device fluid infusion, can pass through the direct fluid infusion of fluid infusion mouth again, and two kinds of fluid infusion modes have effectively strengthened the life of battery cycle performance, extension battery.
8. The utility model discloses a power equipment, include the utility model discloses a battery. Can carry out the fluid infusion for electric core utmost point group, the structure sets up simply, and does not occupy the external installation space, makes the whole aesthetic property of battery good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram showing an overall structure of a battery according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a liquid replenishing device in a battery according to an embodiment of the present invention.
Description of reference numerals:
1. a housing; 11. a mounting gap; 2. a battery cell pole group; 3. a liquid supplementing device; 31. a liquid storage cavity.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood 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 work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the present embodiment discloses a battery, which includes a casing 1, a cell pole group 2, and a fluid infusion device 3, wherein the cell pole group 2 is disposed in the casing 1, a mounting gap 11 is disposed between the cell pole group 2 and an inner wall of the casing 1, the fluid infusion device 3 is disposed in the mounting gap 11, an electrolyte is stored in the fluid infusion device 3, and the fluid infusion device 3 is made of a polymer.
The battery of this embodiment, in the long-time charge-discharge cycle middle and later stages of battery, the thermal expansion of electricity core utmost point group 2 extrudees fluid infusion device 3, because fluid infusion device 3 is made by the polymer, the pressurized is heated and easily takes place to break, electrolyte outflow and the flow in the fluid infusion device 3 of back of breaking carry out automatic fluid infusion in 2 inner chambers of electricity core utmost point group, slow down electric core impedance increase rate, improve battery cycle performance, the life of extension battery, therefore, the utility model discloses a fluid infusion device 3 utilizes self easy rupture characteristic to carry out automatic fluid infusion, need not the pipeline and carries electrolyte, and the structure sets up simply, and fluid infusion is efficient and can receive the extrusion degree to realize lasting fluid infusion according to fluid infusion device 3, and fluid infusion device 3 establishes in the installation clearance 11 between electricity core utmost point group 2 and the 1 inner wall of casing, does not occupy the external installation space, makes the whole aesthetic property of battery good.
The battery is described in detail below with reference to the accompanying drawings.
The casing 1 is used for accommodating the cell pole group 2 to protect the cell pole group, and the casing 1 can be rectangular, cylindrical and the like. In the embodiment, the housing 1 is rectangular, the length of the housing 1 is 100mm-1000mm, the height is 50mm-250mm, the width is 20mm-100mm, and the volume of the inner cavity of the housing 1 is 100000mm 3 -25000000mm 3 。
The cell electrode group 2 is formed by stacking a plurality of single cells, and the arrangement process is the prior art, which is not described herein again. In this embodiment, the thickness range of the battery cell electrode group 2 is 20mm to 100mm, so as to form the mounting gap 11 between the battery cell electrode group 2 and the inner wall of the casing 1, the specific size may be adjusted according to actual conditions, and this embodiment is not particularly limited.
The liquid supplementing device 3 is made of polymer, so that the liquid supplementing device 3 is easy to break under a high-temperature pressed state, and electrolyte can flow out conveniently to supplement liquid for the battery core electrode group 2. In this embodiment, the fluid infusion device 3 is made of hydrogel, and the fluid infusion device 3 made of hydrogel is easily broken by heating and pressing, so as to ensure timely fluid infusion.
In this embodiment, fluid infusion device 3 sets up in the top of electric core utmost point group 2 to after fluid infusion device 3 breaks, do benefit to electrolyte from last to flowing to electric core utmost point group 2 down in, reinforcing fluid infusion effect. Specifically, a plurality of fluid infusion devices 3 can be arranged at intervals along the length direction of the battery cell pole group 2, so that fluid infusion can be performed on each part of the battery cell pole group 2 in time, and the sufficient uniformity of electrolyte supplementation can be improved.
Specifically, as shown in fig. 1 and 2, the fluid infusion device 3 includes a plurality of independent and integrally formed fluid storage cavities 31. When receiving electric core utmost point group 2 extrudees, the pressure difference that every stock solution chamber 31 received makes the rupture time different, can be according to inflation extrusion degree, and stock solution chamber 31 successively breaks, and the continuation adds appropriate amount electrolyte for electric core utmost point group 2, has both prolonged the fluid infusion time, has also avoided disposable too much electrolyte of mend, effectively strengthens electrolyte fluid infusion effect, extension battery cycle performance.
Optionally, the liquid storage cavity 31 is stacked along the thickness or length or width direction of the battery pole group 2. Each stock solution chamber 31 can be according to the inflation extrusion degree, progressively breaks like domino, realizes adding electrolyte gradually and continuously, and the pressurized degree is big promptly, stock solution chamber 31 breaks many, and the electrolyte replenishment is big, otherwise, the pressurized degree is little, stock solution chamber 31 breaks less, and the electrolyte replenishment is just little to make this battery carry out the self-adaptation adjustment of replenishment volume according to the pressurized degree, avoided the condition of once filling in too much electrolyte.
The battery is along with the increase of the number of circulation circles, and the pole piece inflation leads to 2 thickness of electric core utmost point group can be more and more thick for the pressure that is used in on fluid infusion device 3 is bigger and bigger, and stock solution chamber 31 breaks the electrolyte that makes the inside according to the pressure size gradually and flows out, realizes the fluid infusion of continuation, validity, extension fluid infusion time.
In terms of specific shape, the fluid infusion device 3 can be usedThe liquid storage chamber is formed by a plurality of hexagonal liquid storage chambers 31, so that the manufacturing and processing are convenient. In this embodiment, one or more cellular hydrogel fluid infusion devices 3 can be selectively placed above, on the left and right sides of, or below the cell electrode group 2, and the overall volume of the device is 100mm 3 -1000mm 3 And the ratio of the volume of the fluid infusion device 3 to the volume of the housing 1 is 100: 250000. Through setting up the volume of fluid infusion device 3 and the volume of casing 1, make the volume ratio of the two at the scope of predetermineeing, ensure that fluid infusion device 3 can store sufficient electrolyte in order to satisfy the fluid infusion demand of electric core utmost point group 2 in the casing 1.
Further, this battery still includes the mounting, and fluid infusion device 3 is fixed in on electric core utmost point group 2 and/or casing 1 through the mounting, avoids fluid infusion device 3 to remove in casing 1, ensures the accuracy of fluid infusion position.
Specifically, the fixing member may be an adhesive tape or glue, and the embodiment is not particularly limited.
In addition, a fluid infusion port is also provided on the housing 1. Make the battery of this embodiment can pass through 3 fluid infusion of fluid infusion device, can pass through the direct fluid infusion of fluid infusion mouth again, two kinds of fluid infusion modes have effectively strengthened battery cycle performance, have prolonged the life of battery.
To facilitate understanding of the battery of the present embodiment, the following description is made of the liquid replenishing process:
fixing the liquid supplementing device 3 in an installation space above the battery cell pole group 2 through adhesive tapes or glue;
in the middle and later stages of the charge and discharge cycle of the battery, the battery core electrode group 2 is heated to expand and increase the thickness, and the liquid supplementing device 3 above is extruded, so that the liquid storage cavity 31 at the outer side of the liquid supplementing device 3, which is in contact with the battery core electrode group 2, is firstly broken, and the electrolyte flows out and flows into the battery core electrode group 2 from top to bottom to supplement the electrolyte for the battery core electrode group 2;
along with the increase of the expansion degree of the battery core pole group 2, the extrusion degree of the liquid supplementing device 3 is gradually increased, the liquid storage cavities 31 in the middle and the upper part of the liquid supplementing device 3 are sequentially extruded and broken, the continuous liquid supplementing for the battery core pole group 2 is realized, and the circulating charge and discharge performance of the battery is ensured.
The embodiment also discloses power equipment comprising the battery of the embodiment. Can carry out the fluid infusion for electric core utmost point group 2, the structure sets up simply, and does not occupy the external installation space, makes the whole aesthetic property of battery good.
It should be noted that, by way of example, in the up-down and left-right directions in fig. 1, the thickness direction of the battery cell pole group mentioned in this embodiment refers to the up-down direction in fig. 1;
in other embodiments, the fluid infusion device 3 may also be disposed at a side edge or a lower side of the battery cell pole group 2; or the liquid storage cavity 31 is stacked along the length or width direction of the battery core pole group 2; alternatively, the solution replenishing device 3 may be made of other materials in the polymer, and the embodiment of the present invention is not limited thereto.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. A battery, comprising:
a housing (1);
the battery cell pole group (2) is arranged in the shell (1), and a mounting gap (11) is formed between the battery cell pole group (2) and the inner wall of the shell (1);
a fluid infusion device (3) disposed within the mounting gap (11), the fluid infusion device (3) having an electrolyte stored therein and the fluid infusion device (3) being made of a polymer.
2. The battery according to claim 1, characterized in that the fluid infusion device (3) is arranged above or on the side or below the cell pole group (2);
and/or fluid infusion device (3) include a plurality of independent and integrated into one piece's stock solution chamber (31), stock solution chamber (31) are followed the thickness or length or the width direction of electricity core utmost point group (2) stack the setting.
3. The battery according to claim 2, wherein the housing (1) has a length of 100mm to 1000mm, a height of 50mm to 250mm, and a width of 20mm to 100mm.
4. Battery according to claim 3, characterized in that the volume of the fluid infusion device (3) is 100mm 3 -1000mm 3 And the ratio of the volume of the liquid supplementing device (3) to the volume of the shell (1) is 100: 250000.
5. The battery according to any one of claims 1 to 4, characterized in that the fluid replacement device (3) is honeycomb-shaped.
6. The cell according to any one of claims 1 to 4, characterised in that the rehydration means (3) is of hydrogel material.
7. The battery according to any one of claims 1 to 4, further comprising a fixing member, wherein the liquid replenishing device (3) is fixed on the cell pole group (2) and/or the casing (1) through the fixing member.
8. The battery of claim 7, wherein the securing member is an adhesive tape.
9. The battery according to any one of claims 1 to 4, characterized in that the casing (1) is provided with a fluid infusion port.
10. A power plant, characterized by comprising a battery according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120984.6U CN218586301U (en) | 2022-11-18 | 2022-11-18 | Battery and power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120984.6U CN218586301U (en) | 2022-11-18 | 2022-11-18 | Battery and power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218586301U true CN218586301U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223120984.6U Active CN218586301U (en) | 2022-11-18 | 2022-11-18 | Battery and power equipment |
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| Country | Link |
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| CN (1) | CN218586301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116759672A (en) * | 2023-08-15 | 2023-09-15 | 江苏正力新能电池技术有限公司 | Shell, battery and electric equipment |
-
2022
- 2022-11-18 CN CN202223120984.6U patent/CN218586301U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116759672A (en) * | 2023-08-15 | 2023-09-15 | 江苏正力新能电池技术有限公司 | Shell, battery and electric equipment |
| CN116759672B (en) * | 2023-08-15 | 2023-11-17 | 江苏正力新能电池技术有限公司 | Battery shell, battery and electric equipment |
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