CN216413133U - Diatomite multi-stage structure silicon-lithium cathode solid-state battery - Google Patents
Diatomite multi-stage structure silicon-lithium cathode solid-state battery Download PDFInfo
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- CN216413133U CN216413133U CN202122110805.XU CN202122110805U CN216413133U CN 216413133 U CN216413133 U CN 216413133U CN 202122110805 U CN202122110805 U CN 202122110805U CN 216413133 U CN216413133 U CN 216413133U
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- groove
- outer sleeve
- structure silicon
- stage structure
- state battery
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 25
- ZVLDJSZFKQJMKD-UHFFFAOYSA-N [Li].[Si] Chemical compound [Li].[Si] ZVLDJSZFKQJMKD-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000005909 Kieselgur Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of solid-state batteries, in particular to a diatomite multi-stage structure silicon-lithium cathode solid-state battery which comprises a charging and discharging power supply body, wherein the charging and discharging power supply body comprises a core, the core comprises an electric core, the electric core is provided with a clamping groove, the electric core is connected with a shell, the shell comprises an outer sleeve, the outer sleeve is provided with the clamping body, the outer sleeve is provided with a first electric conductor, the outer sleeve is provided with a second electric conductor, the second electric conductor is provided with a conductive groove, the outer sleeve is provided with a heat dissipation groove, and the heat dissipation groove is provided with a heat dissipation body. The utility model has the advantages that the diatomite multilevel structure silicon lithium cathode battery is adopted, the cost of the battery is low, and the charging and discharging service life is long.
Description
Technical Field
The utility model relates to the technical field of solid-state batteries, in particular to a diatomite multi-stage structure silicon lithium cathode solid-state battery.
Background
With the popularization of new energy automobiles, the application of lithium batteries is higher and higher, and the existing liquid batteries have the defects that the electric quantity storage density is too low and the battery storage is excessively attenuated, and in addition, because the electrolyte is chemical liquid and is easy to leak, the accidents of fire and explosion caused by the leakage are endless, and the accident potential exists.
SUMMERY OF THE UTILITY MODEL
The present invention aims to provide a diatomite multi-stage structure silicon lithium negative electrode solid-state battery to solve the problems in the background art.
In order to achieve the purpose, the utility model provides a diatomite multi-stage structure silicon-lithium negative electrode solid-state battery, which comprises a charge-discharge power supply body, wherein the charge-discharge power supply body comprises an inner core, the inner core comprises an electric core, the upper surface and the lower surface of the electric core are respectively provided with a clamping groove, the surface of the electric core is connected with a shell, the shell comprises an outer sleeve, the electric core is positioned in the outer sleeve, the upper surface and the lower surface of the inner part of the outer sleeve are provided with a clamping body, the clamping body is matched with the clamping grooves in a clamping manner, the bottom of the outer sleeve is provided with a first electric conductor which is contacted with the bottom of the electric core, the top of the outer sleeve is provided with a second electric conductor which is contacted with the top of the electric core, the bottom of the second electric conductor is provided with a conductive groove, the conductive groove is matched with the top of the electric core in an inserting manner, the outer surface of the outer sleeve is provided with a heat dissipation groove, and a heat dissipation body is arranged in the heat dissipation groove.
As a further improvement of the technical scheme, a rubber insulating layer is arranged on the surface of the battery core.
As a further improvement of the technical scheme, the surface of the electric core is provided with a shielding cover.
As a further improvement of the technical scheme, the heat radiation body is provided with a plurality of fins.
As a further improvement of the technical scheme, the bottom of the outer sleeve is provided with a first groove, the top of the outer sleeve is provided with a second groove, the first electric conductor is in clamping fit with the first groove, and the second electric conductor is in clamping fit with the second groove.
As a further improvement of the technical scheme, the outer sleeve is provided with a vent groove penetrating through the surface of the outer sleeve, and the vent groove is communicated with the inside of the outer sleeve.
As a further improvement of the technical scheme, a waterproof breathable film is arranged in the vent groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. in this diatomaceous earth multilevel structure silicon lithium negative pole solid-state battery, have the buffering effect when avoiding the electric leakage through being equipped with rubber insulation layer, can protect electric core not receive the damage when accidentally dropping, can make electric core have high wearability and anti tear performance and better electromagnetic shielding performance through being equipped with the shield cover.
2. In this diatomaceous earth multilevel structure silicon lithium negative pole solid-state battery, can discharge the gaseous in order to avoid the explosion of electric core at the charge-discharge in-process output of electric core through being equipped with the air channel, thereby can allow gaseous through and intercept water and ensure the normal use of electric core through being equipped with waterproof ventilated membrane.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a charge/discharge power supply according to the present invention;
FIG. 3 is a schematic diagram of the core structure of the present invention;
fig. 4 is a schematic cross-sectional structure of the housing of the present invention.
The various reference numbers in the figures mean:
100. a charge-discharge power supply;
110. a kernel;
111. an electric core; 112. a clamping groove; 113. a shield case;
120. a housing;
121. a jacket; 122. a clip body; 123. a first electrical conductor; 124. a second conductor; 1241. a conductive slot; 125. a heat sink; 126. a heat sink; 127. a first groove; 128. a second groove; 129. a vent channel; 1291. waterproof ventilated membrane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Example 1
Referring to fig. 1-4, the present embodiment provides a diatomite multi-level structure solid-state battery with silicon-lithium cathode, which includes a charge-discharge power supply body 100, the charge-discharge power supply body 100 includes a core 110, the core 110 includes a cell 111, the cell 111 is an inverted "T" shaped cylinder structure, the upper and lower surfaces of the cell 111 are both provided with a clamping groove 112, the clamping groove 112 is a groove of an annular semi-cylinder structure, the surface of the cell 111 is connected with a housing 120, the housing 120 includes a casing 121, the casing 121 is a cylinder with a "middle" shaped circular opening structure, the cell 111 is located in the casing 121, the upper and lower surfaces of the casing 121 are provided with a clamping body 122, the clamping body 122 is a protrusion of an annular semi-cylinder structure, the clamping body 122 is in clamping fit with the clamping groove 112, the bottom of the casing 121 is provided with a first conductor 123 contacting the bottom of the cell 111, the top of the casing 121 is provided with a second conductor 124 contacting the top of the cell 111, the first electric conductor 123 and the second electric conductor 124 are both cylinders, the bottom of the second electric conductor 124 is provided with a conductive groove 1241, the conductive groove 1241 is a groove with a cylindrical structure, the conductive groove 1241 is in inserting fit with the top of the electric core 111, the outer surface of the outer sleeve 121 is provided with a heat dissipation groove 125, the heat dissipation groove 125 is a groove with an annular structure, a heat sink 126 is arranged in the heat dissipation groove 125, and the heat sink 126 is an annular body.
Further in order to protect the battery cell 111, the surface of the battery cell 111 is provided with a rubber insulating layer, and the rubber insulating layer has a buffering effect while avoiding electric leakage, so that the battery cell 111 can be protected from being damaged when accidentally falling.
Further, in order to perform electromagnetic shielding, the surface of the battery cell 111 is provided with a shielding cover 113, the shielding cover 113 is made of aluminum foil foam, the conductive aluminum foil foam is made of high-purity aluminum foil wrapped conductive sponge, and the battery cell 111 has high wear resistance and tear resistance and better electromagnetic shielding performance by being provided with the shielding cover 113.
In order to further improve the heat dissipation effect, the heat dissipation body 126 is provided with a plurality of fins, and the heat dissipation effect of the heat dissipation body 126 during charging and discharging of the core 110 can be improved by providing a plurality of fins.
Further, in order to avoid falling off, the bottom of the outer sleeve 121 is provided with a first groove 127, the top of the outer sleeve 121 is provided with a second groove 128, the first groove 127 and the second groove 128 are both annular grooves, the surfaces of the first conductor 123 and the second conductor 124 are both provided with annular protrusions, the first conductor 123 is in clamping fit with the first groove 127, the second conductor 124 is in clamping fit with the second groove 128, and the first conductor 123, the first groove 127, the second conductor 124 and the outer sleeve 121 which are in clamping fit are arranged to ensure that the first conductor 123 and the second conductor 124 are tightly connected so as to avoid falling off.
In addition, for exhausting air, the outer sleeve 121 is provided with a vent groove 129 penetrating through the surface of the outer sleeve 121, the vent groove 129 is a circular through opening, the vent groove 129 is communicated with the inside of the outer sleeve 121, and the vent groove 129 is arranged to exhaust gas generated by the battery cell 111 in the charging and discharging processes so as to avoid explosion of the battery cell 111.
Specifically, in order to ventilate and waterproof, a waterproof breathable film 1291 is arranged in the ventilation groove 129, and the waterproof breathable film 1291 can allow gas to pass through and intercept water so as to ensure the normal use of the battery cell 111.
The battery cell 111 of the embodiment adopts the silicon lithium cathode battery with the diatomite multilevel structure, increases the specific surface area, has larger contact area with lithium, is beneficial to the rapid exchange of lithium ions, has promotion effect on improving the stability of the battery, has larger pore volume, leads the battery to have lighter weight, has pores with a structure of large pores and small pores, can absorb the expansion generated in the process of embedding lithium in silicon, prevents silicon crystals from falling off, simultaneously reduces the oxidation reduction temperature to 200 ℃, is different from the high temperature requirement of a carbon reduction method and a magnesium thermal reduction method, reduces the energy consumption and the production requirement, has low price and is suitable for popularization, can be combined with more lithium ions by adopting the diatomite multilevel structure, realizes that the reversible capacity reaches 1600mAh/g, simultaneously prevents the lithium from reacting with silicon dioxide in the process of embedding lithium for the first time, generates inert lithium silicate, and loses activity, the first efficiency is improved to 88.9 percent, the power supply is circularly charged and discharged for 1000 times, and the capacity retention rate is 92 percent.
The diatomite multi-stage structure silicon lithium cathode solid-state battery of the embodiment has the advantages that the specific surface area of the diatomite multi-stage structure negative electrode battery is large when the diatomite multi-stage structure silicon lithium cathode solid-state battery is used specifically, the contact area with lithium is large, the lithium ion rapid exchange is convenient, the pore volume of the diatomite multi-stage structure silicon lithium cathode battery is large, the falling of a silicon crystal caused by the expansion of silicon embedded lithium can be avoided, the charging and discharging service life of the battery is prolonged, the cost of the battery is reduced, the electric core 111 can be stably prevented from shaking in the outer sleeve 121 through the clamping matched clamping groove 112 and the clamping body 122, gas generated during the charging and discharging of the electric core 111 is circulated to the outside through the ventilation groove 129 to ensure the internal air pressure balance, and heat generated during the charging and discharging can be guided out by the heat radiator 126 along the outer sleeve 121 to be emitted to the outside, so that the temperature of the surface battery is too high when the surface battery is used.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a diatomaceous earth multilevel structure silicon lithium negative pole solid-state battery which characterized in that: the charging and discharging power supply device comprises a charging and discharging power supply body (100), wherein the charging and discharging power supply body (100) comprises a core (110), the core (110) comprises a battery cell (111), clamping grooves (112) are formed in the upper surface and the lower surface of the battery cell (111), a shell (120) is connected to the surface of the battery cell (111), the shell (120) comprises a jacket (121), the battery cell (111) is positioned in the jacket (121), the clamping bodies (122) are arranged on the upper surface and the lower surface of the inner part of the jacket (121), the clamping bodies (122) are in clamping fit with the clamping grooves (112), a first electric conductor (123) which is in contact with the bottom of the battery cell (111) is arranged at the bottom of the jacket (121), a second electric conductor (124) which is in contact with the top of the battery cell (111) is arranged at the top of the jacket (121), a conductive groove (1241) is formed at the bottom of the second electric conductor (124), and the conductive groove (1241) is in insertion fit with the top of the battery cell (111), the outer surface of the outer sleeve (121) is provided with a heat dissipation groove (125), and a heat dissipation body (126) is arranged in the heat dissipation groove (125).
2. The diatomaceous earth multi-stage structure silicon lithium negative electrode solid-state battery according to claim 1, wherein: and a rubber insulating layer is arranged on the surface of the electric core (111).
3. The diatomaceous earth multi-stage structure silicon lithium negative electrode solid-state battery according to claim 1, wherein: and a shielding cover (113) is arranged on the surface of the battery cell (111).
4. The diatomaceous earth multi-stage structure silicon lithium negative electrode solid-state battery according to claim 1, wherein: the heat radiator (126) is provided with a plurality of fins.
5. The diatomaceous earth multi-stage structure silicon lithium negative electrode solid-state battery according to claim 1, wherein: a first groove (127) is formed in the bottom of the outer sleeve (121), a second groove (128) is formed in the top of the outer sleeve (121), the first conductor (123) is in clamping fit with the first groove (127), and the second conductor (124) is in clamping fit with the second groove (128).
6. The diatomaceous earth multi-stage structure silicon lithium negative electrode solid-state battery according to claim 1, wherein: the outer sleeve (121) is provided with a vent groove (129) penetrating through the surface of the outer sleeve, and the vent groove (129) is communicated with the inside of the outer sleeve (121).
7. The diatomaceous earth multi-stage structure silicon lithium negative electrode solid-state battery according to claim 6, wherein: a waterproof breathable film (1291) is arranged in the vent groove (129).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122110805.XU CN216413133U (en) | 2021-09-02 | 2021-09-02 | Diatomite multi-stage structure silicon-lithium cathode solid-state battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122110805.XU CN216413133U (en) | 2021-09-02 | 2021-09-02 | Diatomite multi-stage structure silicon-lithium cathode solid-state battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216413133U true CN216413133U (en) | 2022-04-29 |
Family
ID=81292361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122110805.XU Active CN216413133U (en) | 2021-09-02 | 2021-09-02 | Diatomite multi-stage structure silicon-lithium cathode solid-state battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216413133U (en) |
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2021
- 2021-09-02 CN CN202122110805.XU patent/CN216413133U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240524 Address after: 261000 Rainbow Road, Linjia Village, Zhucheng City, Weifang City, Shandong Province Patentee after: Zhucheng Zixian Technology Service Center (for individual businesses) Country or region after: China Address before: 261000 room 218, Sunshine Building, 2101 Xincheng street, Changle County, Weifang City, Shandong Province Patentee before: Shandong Mud Doctor New Materials Co.,Ltd. Country or region before: China |