CN216793886U - Assembled energy storage device - Google Patents
Assembled energy storage device Download PDFInfo
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- CN216793886U CN216793886U CN202220364402.XU CN202220364402U CN216793886U CN 216793886 U CN216793886 U CN 216793886U CN 202220364402 U CN202220364402 U CN 202220364402U CN 216793886 U CN216793886 U CN 216793886U
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Abstract
The utility model provides an assembled energy storage device, which relates to the field of energy storage devices and comprises an electric core, wherein the electric core comprises an energy storage module and a cladding module; the energy storage module comprises a naked battery cell, a negative electrode structure and a positive electrode structure; the cladding module is arranged outside the energy storage module and is used for protecting the energy storage module and guiding electric energy from the energy storage module to the outside of the cladding module; upper bracket and lower carriage, upper bracket and lower carriage will electric core centre gripping in between upper bracket and the lower carriage, in this application, electric core is fixed between upper bracket and lower carriage, and the compound mode is simplified greatly, is favorable to assembling multiunit pin-connected panel energy memory, and a plurality of electric cores are connected according to the requirement of series-parallel connection with electric core PACK mode, and positive electrode structure and negative pole structure are owing to there is the screw thread, consequently can adopt the nut to connect and realize electrically conductive, and multiunit pin-connected panel energy memory also makes things convenient for quick replacement, maintenance simultaneously.
Description
Technical Field
The utility model relates to an energy storage device, in particular to an assembled energy storage device.
Background
With the arrival of the new energy and energy storage times, the requirements on energy storage technology are more mature, and higher requirements are provided for the storage capacity and the application life. With the increase of expected index value of energy storage in the market, the structure, manufacturing process and combined integration mode of the energy storage device all provide more convenient, simpler and more practical requirements.
For energy storage devices, the energy storage devices are divided into a cylinder, a square hard shell and a square soft package, and the square hard shell is the most widely applied in the field of energy storage. Because the cylindrical assembled energy storage device in the market at present has small capacity and poor high-power performance, the soft-packaged assembled energy storage device has low strength and complex combination, and the square hard-shell energy storage device has the advantages of relatively large energy storage capacity (over 100 Ah) and convenience in fixed combination (in the aspects of hard-shell supporting force and toughness). However, the square hard shell has the defects of poor high-power performance, inconvenient heat dissipation treatment and inconvenient maintenance after welding mode combination.
SUMMERY OF THE UTILITY MODEL
The utility model provides an assembled energy storage device, and aims to solve the problems that the energy storage device is poor in high-power performance, inconvenient in heat dissipation treatment and inconvenient to maintain after welding mode combination.
In order to achieve the above object, an embodiment of the present invention provides an assembled energy storage device, including:
the battery cell comprises an energy storage module and a cladding module;
the energy storage module comprises a naked electric core; and
the negative electrode structure is arranged on the negative electrode of the bare cell and comprises a piece part and a negative electrode current collector formed by a negative electrode screw rod, the negative electrode screw rod is connected with the piece part, and the piece part is welded with the end face of the negative electrode of the bare cell; and
the positive electrode structure is arranged on the positive electrode of the bare cell and comprises a positive electrode current collector composed of a first positive electrode body and a second positive electrode body, the first positive electrode body and the second positive electrode body are concentrically arranged, the diameter of the first positive electrode body is smaller than that of the second positive electrode body, the second positive electrode body is welded with the end face of the positive electrode of the bare cell, an aluminum cover plate is clamped on the first positive electrode body, and the aluminum cover plate comprises a clamping part clamped with the first positive electrode body and a stud positioned on the other side of the aluminum cover plate;
the coating module is arranged outside the energy storage module and comprises a cylinder, and an anode end face and a cathode end face which are clamped at two ends of the cylinder, wherein the cathode end face is provided with a first through hole, the anode end face is provided with a second through hole, the cathode screw rod is screwed with a cathode nut after penetrating through the first through hole, and a cathode insulation structure is arranged between the sheet part and the cathode end face; the stud penetrates through the second penetrating hole, and a positive electrode insulation structure is arranged between the positive electrode end face and the positive electrode current collector;
the battery cell is clamped between the upper support and the lower support through the upper support and the lower support.
Preferably, the negative pole insulation system includes negative pole insulation cover, negative pole insulating washer and negative pole O type cover, the negative pole mass flow body passes the negative pole insulation washer is with insulating the negative pole terminal surface with electric connection between the piece portion, the negative pole insulation lantern ring is established with insulating on the negative pole screw rod with electric connection between the negative pole terminal surface, the department of buckling that the negative pole screw rod is connected with the piece portion is provided with negative pole O type circle, negative pole insulation cover and negative pole insulating washer respectively with negative pole O type circle butt.
Preferably, the barrel is arranged at the interval between the second anode body and the aluminum cover plate and is inwards sunken to form a concave shoulder to separate the second anode body and the aluminum cover plate, the anode insulation structure comprises an anode insulation ring and an anode O-shaped ring, the anode insulation ring is respectively arranged between the second anode body and the concave shoulder as well as between the aluminum cover plate and the anode end face, and the anode O-shaped ring is arranged between the concave shoulder and the aluminum cover plate.
Preferably, the anodal mass flow body is provided with first step through-hole along the axial, the aluminium apron sets up and is provided with second step through-hole, second step through-hole is big-end-up, and second step through-hole runs through block portion and double-screw bolt, be provided with the relief valve in the second step through-hole, the relief valve includes valve body and valve cap, the valve body sets up in the second step through-hole, the setting that the valve cap partly surrounds is in the upper end of valve body, valve body axial motion can be followed to the valve cap, the valve cap is provided with the valve gap that partly surrounds outward, the valve cap with the upper end clearance fit of second step through-hole, the valve cap with valve body interference fit, the top of valve cap is provided with the atmospheric pressure hole.
Preferably, the upper support and the lower support are respectively provided with two mounting positions, and the edges of the upper support and the lower support are provided with clamping components for connecting the upper support and the lower support.
Preferably, the coating module is one of an aluminum shell, a steel shell, an alloy material shell and a high-strength polymer plastic shell.
Preferably, the bare cell is formed by winding a positive pole piece, a negative pole piece and a diaphragm, and the wound bare cell is subjected to flattening and shaping of the positive end face and the negative end face.
The scheme of the utility model has the following beneficial effects:
in this application, electric core is fixed between upper bracket and lower carriage, and the compound mode is simplified greatly, is favorable to assembling multiunit pin-connected panel energy memory, and a plurality of electric cores are connected according to the requirement of series-parallel connection with electric core PACK mode, and positive pole structure and negative pole structure are owing to there being the screw thread, consequently can adopt the nut to connect and realize electrically conductively, and multiunit pin-connected panel energy memory also makes things convenient for quick replacement, maintenance simultaneously.
Drawings
FIG. 1 is a schematic assembly view of the present invention;
fig. 2 is an exploded schematic view of a cell;
fig. 3 is a cross-sectional view of the negative side of the cell;
fig. 4 is a cross-sectional view of the positive electrode side of the cell.
[ instruction of reference ]
1-an energy storage module, 11-a bare cell, 12-a negative electrode structure, 121-a negative electrode current collector, 121 a-a sheet, 121 b-a negative electrode screw, 13-a positive electrode structure, 131-a positive electrode current collector, 131 a-a first positive electrode body, 131 b-a second positive electrode body, 131 c-a first step through hole, 132-an aluminum cover plate, 132 a-a clamping part, 132 b-a stud, 133-a safety valve, 133 a-a valve body, 133 b-a valve cap and 133 c-a valve cap;
2-a coating module, 21-a barrel, 22-an anode end face, 23-a cathode end face, 231-a first through hole, 24-a cathode insulation structure, 25-a cathode insulation structure, 241-a cathode insulation sleeve, 242-a cathode insulation ring, 243-a cathode O-shaped sleeve, 251-a cathode insulation ring and 252-a cathode O-shaped ring;
3-mounting a bracket; 4-lower support; 5-a clamping structure.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, an embodiment of the present invention provides an assembled energy storage device, including a battery cell, an upper bracket 3, and a lower bracket 4, where the battery cell includes an energy storage module 1 and a cladding module 2, where the energy storage module 1 includes a bare battery cell 11, and a positive electrode structure 13 and a negative electrode structure 12 connected to the bare battery cell 11, specifically, the bare battery cell 11 includes a positive electrode plate, a negative electrode plate, and a separator, and the bare battery cell 11 after being wound performs a flattening shaping on a positive electrode end surface 22 and a negative electrode end surface 23.
Aforementioned negative pole structure 12 sets up on naked electric core 11's negative pole, and negative pole structure 12 includes negative pole current collector 121, and negative pole current collector 121 includes piece portion 121a and sets up negative pole screw rod 121b on piece portion 121a, and piece portion 121a is connected with the terminal surface of naked electric core 11's negative pole, and is preferred, and piece portion 121a is connected in order to realize the face-to-face contact with the terminal surface welded connection of naked electric core 11's negative pole.
The positive electrode structure 13 is disposed on the positive electrode of the bare cell 11, and includes a positive electrode current collector 131, the positive electrode current collector 131 includes a first positive electrode body 131a and a second positive electrode body 131b, wherein the first positive electrode body 131a and the second positive electrode body 131b are concentrically disposed, the diameter of the first positive electrode body 131a is smaller than that of the second positive electrode body 131b, the second positive electrode body 131b is connected to the positive electrode end surface of the bare cell 11, preferably, the second positive electrode body 131b is welded to the negative electrode end surface of the bare cell 11 to realize surface-to-surface contact, the first positive electrode body 131a is further engaged with an aluminum cover plate 132, and the aluminum cover plate 132 includes an engaging portion 132a engaged with the first positive electrode body 131a and a stud 132b located on the other side of the aluminum cover plate 132. Anodal structure 13 and negative pole structure 12 adopt the welding mode to fix on the terminal surface of naked electric core 11, can strengthen the intensity of connecting on the one hand, can bear more electric cores of energy storage, and on the other hand, the mode of face-to-face contact can just show high-power nature.
The coating module 2 is arranged at the periphery of the energy storage module 1 and used for protecting the energy storage module 1, the coating module 2 comprises a cylinder 21 and an anode end face 22 and a cathode end face 23 which are clamped at two ends of the cylinder 21, wherein the cathode end face 23 is provided with a first through hole 231, the anode end face 22 is provided with a second through hole, a cathode screw 121b is screwed with a cathode nut after passing through the first through hole 231, a cathode insulation structure 24 is arranged between the sheet part 121a and the cathode end face 23, the stud 132b passes through the second through hole, and an anode insulation structure 25 is arranged between the anode end face 22 and the anode current collector 131. Preferably, the coating module 2 is one of an aluminum shell, a steel shell, an alloy material shell and a high-strength polymer plastic shell.
The battery cell is clamped between the upper support 3 and the lower support 4 by the upper support 3 and the lower support 4, multiple groups of battery cells are arranged on the upper support 3 and the lower support 4, and the number of the battery cells is consistent with that of the upper support 3 and the lower support 4.
Further, the negative insulation structure 24 includes a negative insulation sleeve 241, a negative insulation ring 242, and a negative O-shaped sleeve 243, the negative current collector 121 passes through the negative insulation ring 242, the negative insulation ring 242 is used for insulating the electrical connection between the negative end surface 23 and the sheet portion 121a, the negative insulation sleeve 241 is annularly disposed on the negative screw 121b, the negative insulation sleeve 241 is used for insulating the electrical connection between the negative screw 121b and the negative end surface 23, the bent portion where the negative screw 121b is connected to the sheet portion 121a is provided with the negative O-shaped sleeve 243, and the negative insulation sleeve 241 and the negative insulation ring 242 are respectively abutted to the negative O-shaped sleeve 243.
The cylinder 21 is recessed inward at the interval between the second positive electrode 131b and the aluminum cover plate 132 to form a concave shoulder, the concave shoulder is used for separating the second positive electrode 131b and the aluminum cover plate 132, the positive insulation structure 25 includes a positive insulation ring 251 and a positive O-ring 252, the positive insulation ring 251 is arranged between the second positive electrode 131b and the concave shoulder, the positive insulation ring 251 is also arranged between the aluminum cover plate 132 and the positive end surface 22, and the positive O-ring 252 is arranged between the concave shoulder and the aluminum cover plate 132.
In this application, electric core is fixed between upper bracket 3 and lower carriage 4, and the compound mode is simplified greatly, is favorable to assembling multiunit pin-connected panel energy memory, and a plurality of electric cores are connected according to the requirement of series-parallel connection with electric core PACK mode, and positive electrode structure 13 and negative electrode structure 12 are owing to there being the screw thread, consequently can adopt the nut to connect and realize electrically conductively, and multiunit pin-connected panel energy memory also makes things convenient for quick replacement, maintenance simultaneously.
Preferably, upper bracket 3 and lower carriage 4 are the rectangle, and electric core is cylindrical, and when electric core was fixed between upper bracket 3 and lower carriage 4, there was clearance passageway between the electric core, was favorable to dispelling the heat fast.
Further, the positive electrode fluid is provided with a first stepped through hole 131c along the axial direction, the aluminum cover plate 132 is provided with a second stepped through hole, the radius of the second stepped through hole is in a shape with a large upper part and a small lower part, the second stepped through hole penetrates through the clamping portion 132a and the stud 132b, a safety valve 133 is arranged in the second stepped through hole, and the safety valve 133 is used for adjusting the pressure in the energy storage module 1 to prevent the energy storage module 1 from expanding. Specifically, the safety valve 133 includes a valve body 133a and a bonnet 133b, wherein the valve body 133a is disposed in the second stepped through hole, the bonnet 133b is disposed at an upper end of the valve body 133a in a half-enclosed manner, the bonnet 133b is movable in an axial direction of the valve body 133a, a bonnet 133c is disposed at an outer half-enclosed manner of the bonnet 133b, the bonnet 133c is in a clearance fit with an upper end of the second stepped through hole, the bonnet 133c is in an interference fit with the valve body 133a, and an air pressure hole is disposed at a top end of the bonnet 133 c. The valve cap 133c serves to restrict the movement of the valve cap 133b from being formed, and the air pressure hole serves to discharge the pressure of the energy storage module 1.
Furthermore, two mounting positions are arranged on each of the upper support 3 and the lower support 4, and the edges of each of the upper support 3 and the lower support 4 are provided with clamping members to realize the rapid assembly of the plurality of groups of assembled energy storage devices.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (7)
1. The utility model provides a pin-connected panel energy memory which characterized in that includes:
the battery comprises a battery cell, wherein the battery cell comprises an energy storage module (1) and a cladding module (2);
the energy storage module (1) comprises a naked battery cell (11); and
set up in negative pole structure (12) of naked electric core (11) negative pole, include by piece portion (121a) and with negative pole screw rod (121b) constitution negative pole mass flow body (121), negative pole screw rod (121b) with piece portion (121a) are connected, piece portion (121a) with the terminal surface welding of the negative pole of naked electric core (11); and
the positive electrode structure (13) is arranged on the positive electrode of the bare cell (11) and comprises a positive electrode current collector (131) composed of a first positive electrode body (131a) and a second positive electrode body (131b), the first positive electrode body (131a) and the second positive electrode body (131b) are concentrically arranged, the diameter of the first positive electrode body (131a) is smaller than that of the second positive electrode body (131b), the second positive electrode body (131b) is welded with the end face of the positive electrode of the bare cell (11), an aluminum cover plate (132) is clamped on the first positive electrode body (131a), and the aluminum cover plate (132) comprises a clamping part (132a) clamped with the first positive electrode body (131a) and a stud (132b) located on the other face of the aluminum cover plate (132);
the coating module (2) is arranged outside the energy storage module (1) and comprises a cylinder (21), and a positive end face (22) and a negative end face (23) which are clamped at two ends of the cylinder (21), wherein the negative end face (23) is provided with a first through hole (231), the positive end face (22) is provided with a second through hole, the negative screw (121b) is screwed with a negative nut after penetrating through the first through hole (231), and a negative insulation structure (24) is arranged between the sheet part (121a) and the negative end face (23); the stud (132b) penetrates through the second penetrating hole, and a positive insulation structure (25) is arranged between the positive end face (22) and the positive current collector (131);
the battery cell clamping device comprises an upper support (3) and a lower support (4), wherein the battery cell is clamped between the upper support (3) and the lower support (4) through the upper support (3) and the lower support (4).
2. The assembled energy storage device of claim 1, wherein: negative pole insulation system (24) include negative pole insulating boot (241), negative pole insulating ring (242) and negative pole O type cover (243), negative pole current collector (121) pass negative pole insulating boot (242) are with insulating negative pole terminal surface (23) with electric connection between piece portion (121a), negative pole insulating boot (241) ring is established with insulating on negative pole screw rod (121b) with electric connection between negative pole terminal surface (23), the department of buckling that negative pole screw rod (121b) and piece portion (121a) are connected is provided with negative pole O type circle, negative pole insulating boot (241) and negative pole insulating boot (242) respectively with negative pole O type circle butt.
3. The assembled energy storage device of claim 2, wherein: the cylinder (21) is inwards recessed at the interval between the second positive electrode body (131b) and the aluminum cover plate (132) to form a concave shoulder to separate the second positive electrode body (131b) and the aluminum cover plate (132), the positive electrode insulation structure (25) comprises a positive electrode insulation ring (251) and a positive electrode O-shaped ring (252), positive electrode insulation rings (251) are respectively arranged between the second positive electrode body (131b) and the concave shoulder, between the aluminum cover plate (132) and a positive electrode end face (22), and the positive electrode O-shaped ring (252) is arranged between the concave shoulder and the aluminum cover plate (132).
4. The assembled energy storage device of claim 1, wherein: the positive current collector (131) is provided with a first stepped through hole (131c) along the axial direction, the aluminum cover plate (132) is provided with a second stepped through hole, the second stepped through hole is large at the top and small at the bottom, the second stepped through hole penetrates through the clamping part (132a) and the stud (132b), a safety valve (133) is arranged in the second stepped through hole, the safety valve (133) comprises a valve body (133a) and a bonnet (133b), the valve body (133a) is arranged in the second stepped through hole, the bonnet (133b) is arranged at the upper end of the valve body (133a) in a semi-surrounding manner, the bonnet (133b) can move along the axial direction of the valve body (133a), the bonnet (133c) is arranged at the outer half-surrounding manner of the bonnet (133b), the bonnet (133c) is in clearance fit with the upper end of the second stepped through hole, and the bonnet (133c) is in interference fit with the valve body (133a), the top end of the valve cover (133c) is provided with an air pressure hole.
5. The assembled energy storage device of claim 1, wherein: the upper support (3) and the lower support (4) are respectively provided with two mounting positions, and clamping components are arranged at the edges of the upper support (3) and the lower support (4) to connect the upper supports (3) and the lower supports (4).
6. The assembled energy storage device of claim 1, wherein: the coating module (2) is one of an aluminum shell, a steel shell, an alloy material shell and a high-strength polymer plastic shell.
7. The assembled energy storage device of claim 1, wherein: the bare cell (11) is formed by winding a positive pole piece, a negative pole piece and a diaphragm, and the bare cell (11) after winding is subjected to kneading and shaping of a positive pole end face (22) and a negative pole end face (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220364402.XU CN216793886U (en) | 2022-02-18 | 2022-02-18 | Assembled energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220364402.XU CN216793886U (en) | 2022-02-18 | 2022-02-18 | Assembled energy storage device |
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| Publication Number | Publication Date |
|---|---|
| CN216793886U true CN216793886U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220364402.XU Active CN216793886U (en) | 2022-02-18 | 2022-02-18 | Assembled energy storage device |
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| Country | Link |
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| CN (1) | CN216793886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023011232A1 (en) * | 2021-08-04 | 2023-02-09 | 湖南时代联合新能源有限公司 | Cylindrical battery having anti-vibration and impact resistance effects |
| CN117134062A (en) * | 2023-10-27 | 2023-11-28 | 河南锂动电源有限公司 | Lithium cell is arranged to electric core intelligence |
-
2022
- 2022-02-18 CN CN202220364402.XU patent/CN216793886U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023011232A1 (en) * | 2021-08-04 | 2023-02-09 | 湖南时代联合新能源有限公司 | Cylindrical battery having anti-vibration and impact resistance effects |
| CN117134062A (en) * | 2023-10-27 | 2023-11-28 | 河南锂动电源有限公司 | Lithium cell is arranged to electric core intelligence |
| CN117134062B (en) * | 2023-10-27 | 2024-01-30 | 河南锂动电源有限公司 | Lithium cell is arranged to electric core intelligence |
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