CN111816811A - Solid-state battery pack and control method thereof - Google Patents
Solid-state battery pack and control method thereof Download PDFInfo
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- CN111816811A CN111816811A CN202010709206.7A CN202010709206A CN111816811A CN 111816811 A CN111816811 A CN 111816811A CN 202010709206 A CN202010709206 A CN 202010709206A CN 111816811 A CN111816811 A CN 111816811A
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- current collecting
- state battery
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- 238000000034 method Methods 0.000 title claims abstract description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 12
- 230000008439 repair process Effects 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000001502 supplementing effect Effects 0.000 claims abstract 3
- 239000007784 solid electrolyte Substances 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 17
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 15
- 229910001416 lithium ion Inorganic materials 0.000 claims description 15
- 239000013589 supplement Substances 0.000 claims description 15
- 239000003792 electrolyte Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000008901 benefit Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052709 silver Inorganic materials 0.000 abstract description 19
- 239000004332 silver Substances 0.000 abstract description 19
- 238000007747 plating Methods 0.000 abstract description 8
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000005476 soldering Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000013612 plasmid Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
Abstract
The invention discloses a solid battery pack and a control method thereof, the structure comprises an inner groove part and a current collecting piece, the front end and the rear end of the current collecting piece of the 1 st group and the 11 th group are both connected with an overhaul fast repair structure, the area covered by the overhaul fast repair structure is slightly larger than the surface area of the current collecting piece, the current collecting piece is arranged before the battery is packaged, silver plating needs to be carried out on the current collecting piece, then a roughness detection structure can send a detection light to detect a silver plating layer on the surface of the current collecting piece when the current collecting piece is electrified, when a variable is detected, namely the silver plating layer is damaged to generate a notch, tin can be timely supplemented on the surface of the silver plating layer through a tin supplementing frame, the notch on the surface of the silver plating layer is sealed, the conductivity of soldering tin is good, the oxidation can be prevented, the conduction of current is not blocked, the consumption of the current in the process of collecting output is reduced, the power generation conversion rate of the, the overall safety performance of the battery is improved.
Description
Technical Field
The present invention relates to a solid-state battery, and more particularly, to a solid-state battery pack and a control method thereof.
Background
The solid-state battery is a battery using a solid electrode and a solid electrolyte, the solid electrolyte is different from a liquid electrolyte, so that the space of a diaphragm and electrolyte liquid is saved, the energy density is greatly improved, the packaging process is simpler and easier, the current collector which leads current out of the battery and is made of copper foil generally adopts a current collector made of copper foil, the internal resistance is smaller, the loss during current transmission can be reduced, and dangerous accidents easily occur when the current collector is applied to batteries which adopt sulfur and sulfide as polar plates or electrolytes.
Based on the above description, the present inventors have found that the following disadvantages mainly exist in an existing solid-state battery and a control method thereof, such as:
in the prior art, when a copper foil is used as a current collector, a layer of silver is plated on the surface of the current collector to protect the current collector and prevent the current collector from being oxidized to increase resistivity, but when the current collector is applied to a sulfur-containing solid-state battery, sulfide generated during working can damage silver, so that a silver plating layer is damaged, the surface of part of the current collector is subjected to oxidation reaction, current is consumed under the influence of resistance when passing through the current collector, the power generation effect of the solid-state battery is reduced, the current collector is easily subjected to electrochemical corrosion, and the safety of the battery is influenced.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a solid-state battery pack and a control method thereof to solve the existing problems.
In order to achieve the purpose, the invention is realized by the following technical scheme: a solid battery pack and a control method thereof, the structure comprises an outer shell and an inner groove part embedded in the outer shell, the outer surface of the outer shell is connected with prismatic bars which are uniformly distributed at equal intervals, the top of the inner groove part comprises 44 pole caps, 22 of the pole caps are anode caps and 22 of the pole caps, one row of the pole caps is distributed in 11 groups, the position of one end, deep into the inner groove part, of each pole cap is connected with a current collecting piece, the thickness of each current collecting piece is 7 mu m, the two pole caps share one current collecting piece and share 22 current collecting pieces, an electric core body is connected below the current collecting piece and comprises 11 groups of positive plates, negative plates and solid electrolyte, one sides, close to the outer shell, of the positive plates and the negative plates are movably connected with a fast conducting structure, the fast conducting structure is electrically connected with the current collecting pieces through fixed pulleys, the front end and the back end of the current collecting pieces of the 1 st group and the 11 th group are connected with a, the area covered by the overhaul quick repair structure is slightly larger than the surface area of the collector plate.
According to one kind can implement the mode, overhaul and mend the structure soon and include the vertical migration post parallel with the current collector, the inboard bottom of vertical migration post articulates there is the roughness to survey the structure, the end of dispersing of roughness survey structure is for leaking hopper-shaped and be 45 with the contained angle of perpendicular line, and the junction of end and the light emission end of dispersing has concave lens, and the light emission end still is connected with data processor, the position department that the structure is surveyed to the roughness and vertical migration post is connected has the hinge, and accommodation is between 135-180, and the power input of light emission end comes from the current collector.
According to an implementation mode, a tin supplement frame is connected to the top of the inner side of the vertical moving column, and the moving distance of the tin supplement frame is from the top of the inner side of the vertical moving column to a position 5cm above the concave-convex degree detection structure when the concave-convex degree detection structure is not moved.
According to an implementation mode, the tin patch frame comprises an adjusting shaft connected with the vertical moving column, one side of the adjusting shaft, close to the current collecting piece, can extend for 5-10cm in the horizontal direction, and the rotating angle is 180-225 degrees, and the tin patch frame further comprises a coating plate which is always vertical to the vertical moving column.
According to one implementation mode, the adjusting shaft further comprises a tin bar grid, 9 tin bars are arranged in the tin bar grid, the tin bars are in a spring structure with 10 turns, a blocking sheet is arranged at the bottom of the tin bar at the forefront end, a pushing column is arranged at the tin bar at the rearmost end, a linkage relation exists between the blocking sheet and the pushing column, and the tin bars are composed of Sn3Ag0.5Cu in high-temperature lead-free solder paste.
According to one possible embodiment, the barrier sheet of the tin bar grid has a melting band attached to its left end, which includes five molten beads inside, the temperature of the molten beads being 221 ℃.
According to an implementation mode, the melting belt further comprises a coating plate, a plurality of heating plates are further arranged inside the melting belt, and the length of a liquid outlet of the coating plate is equal to that of the current collecting piece.
According to an implementation mode, but lead the structure soon including the friction disc with positive plate, negative plate contact, the both ends that the inboard is detained in the slip are connected to the friction disc, the slip is detained for the right angle U type structure of opening to positive plate, negative plate direction, and the inboard left end of U type structure is connected with the gyro wheel, the top of gyro wheel is passed through the wire and is connected the fixed pulley and be connected with the current collector electricity.
The invention also provides a control method of the solid-state battery pack, which comprises the following steps:
s10: and connecting the positive electrode and the negative electrode of the load with the pole cap of the solid-state battery well, and starting the load by paying attention to whether the connection between the positive electrode and the negative electrode is correct.
S20: the lithium ions fall off from the negative plate and flow to the positive plate along the solid electrolyte plate, wherein the concentration of the electrolyte in the solid electrolyte plate is the lowest in the middle, and the concentration of the electrolyte at the two ends is higher at the positions closer to the positive plate and the negative plate, so that more lithium ions can be carried to the positive electrode, more current is generated, and sufficient current is provided for the load.
S30: after the current generated by the positive plate is collected by the current collecting sheet, the current is conducted to a load through the pole cap to supply power to the load, a stable cycle is formed, and the whole discharging and power supplying process is completed after all lithium ions in the negative plate move to the positive plate.
S40: when the electric energy of the battery is exhausted, the battery needs to be charged, the positive electrode and the negative electrode of the charging end are connected to the pole cap of the inner groove part, the current flows in through the current collecting piece of the positive electrode plate and flows to the negative electrode plate through the solid electrolyte plate, the movement speed of lithium ions is accelerated due to the fact that the concentration of the solid electrolyte plate close to one end of the positive electrode plate is high, the charging speed of the battery is obviously increased, and when all the lithium ions of the positive electrode plate move to the negative electrode plate, the charging is stopped.
The solid-state battery pack and the control method thereof have the advantages of reasonable design, strong functionality and the following beneficial effects:
the current collector is assembled before the battery is packaged, silver plating is needed to be carried out on the current collector, then the roughness detection structure can emit a detection light to detect the silver coating on the surface of the current collector when the current collector is electrified, when a variable is detected, namely the silver coating is damaged to generate a gap, tin can be timely supplemented on the surface of the silver coating through the tin supplement frame, the gap on the surface of the silver coating is sealed, meanwhile, the conductivity of soldering tin is good, the current conduction can be prevented from being blocked while oxidation is carried out, the consumption of current in collection output is reduced, the power generation conversion rate of a solid-state battery is improved, the possibility that the current collector is corroded by electrochemistry is reduced, and the safety performance of the whole battery is improved.
Drawings
Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic top view of a solid-state battery according to the present invention.
Fig. 2 is a front view of a solid-state battery according to the present invention.
FIG. 3 is a schematic left view of the quick repair structure of the present invention.
Fig. 4 is a schematic structural view of the relationship between the asperity detection structure and the working position of the current collector.
FIG. 5 is a schematic structural view of the inspection quick repair structure of the present invention from above.
Fig. 6 is a detailed structural diagram of the interior of the tin patch frame of the present invention.
Fig. 7 is a schematic structural diagram of a top view position of the fast guiding structure of the present invention.
Description of reference numerals: the device comprises an outer shell-1, an inner groove-2, a pole cap-22, a current collecting plate-33, a fast guide structure-44, an electric core-55, an overhaul fast repair structure-66, a tin repair frame-660, a concave-convex degree detection structure-661, a vertical moving column-662, an adjusting shaft-601, a tin bar grid-602, a coating plate-603, a melting belt-604, a sliding buckle-440, a friction plate-441 and a roller-442.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
The examples are as follows:
as shown in fig. 1 to 3, the present invention provides a solid-state battery pack and a control method thereof, the structure of the solid-state battery pack comprises an outer casing 1 and an inner groove 2 embedded inside the outer casing 1, the outer surface of the outer casing 1 is connected with prismatic bars uniformly distributed at equal intervals, the top of the inner groove 2 comprises 44 pole caps 22, 22 of which are positive pole caps and 22 of which are negative pole caps, and one row of which is 4 and is distributed in 11 groups, the position of one end of the pole cap 22, which is deep into the inner groove 2, is connected with a current collecting sheet 33, the thickness of the current collecting sheet 33 is 7 μm, two pole caps 22 share one common 22 sheet 33, an electric core body 55 is connected below the current collecting sheet 33, the electric core body 55 comprises 11 groups of positive pole plates, negative pole plates and solid electrolyte plates, and quick-conductive structures 44 are movably connected to both sides of the positive pole plates and the negative pole plates, which are close to the outer casing, the quick conduction structure 44 is electrically connected with the current collecting plate 33 through a fixed pulley, the front end and the rear end of the current collecting plate 33 of the 1 st group and the 11 th group are both connected with an overhauling quick compensation structure 66, the area covered by the overhauling quick compensation structure 66 is slightly larger than the surface area of the current collecting plate 33, and 11 groups of positive and negative electrode plates and solid electrolyte plates are used in total, so that more electric quantity is stored, and the endurance is longer; the thickness of the current collecting plate 33 is only 7 μm, the resistance value is smaller, and the resistance to the current is smaller; it should be particularly noted here that, since the middle 9 current collecting plates 33 are all wrapped in the middle, the possibility of the silver plating being vulcanized is low, and the middle 9 current collecting plates 33 are not provided with the maintenance quick-repair structure 66 due to space limitation; the center of the fixed pulley is provided with an electric lead, one end of the original rope is changed into the lead, the electric lead at the center of the pulley is connected with the current collecting piece 33, when the current collecting piece 33 obtains current, the lead at the end of the rope can be stimulated to slide downwards, the fast conducting structure 44 is driven to rapidly reciprocate on the polar plate to rub and heat, and a foundation is provided for rapid power generation of the battery; the distribution range of electrolyte plasmid is for using the central point to be the center in the solid electrolyte, concentration from all around rises gradually, guarantee that active particle can be more and carry out quick conduction with the particle contact in the polar plate, the length size of overhauing four limits of fast benefit structure 66 all exceeds current collector 33, prevent to appear dead corner point when the light sense is surveyed, the prismatic strip of shell body 1 surface is for convenient transport firstly, comparatively smooth plane is difficult to by fixed when preventing to transport, secondly can in time dispel the heat, it can in time dispel the heat to the energy that produces when discharging to leave the gap between the 1 limits of shell body.
As shown in fig. 4 to 5, the fast repairing structure 66 includes a vertical moving column 662 parallel to the current collecting plate 33, the bottom of the inner side of the vertical moving column 662 is hinged with a concavity and convexity detecting structure 661, the divergent end of the concavity and convexity detecting structure 661 is funnel-shaped and has an included angle of 45 degrees with the vertical line, the junction of the divergent end and the light-emitting end is provided with a concave lens, the light-emitting end is further connected with a data processor, the position where the concavity and convexity detecting structure 661 is connected with the vertical moving column 662 is provided with a hinge, the adjusting range is 135-180 degrees, the power input of the light-emitting end is from the current collecting plate 33, the vertical moving column 662 is provided with a connecting line, an activating signal can be sent out in time to start the tin repairing frame 660 when the concavity and convexity detecting structure constant detects a variable, the funnel-shaped emitting end and the concave lens can scatter a single light ray to the whole current, the radiation range is increased, the adjustable concave-convex degree detection structure 661 can perform swing scanning in the interval of 135-180 degrees, the current collecting sheet 33 of part of the solid-state battery is prevented from greatly exceeding the light radiation range, and the exceeding part can be scanned.
As shown in fig. 5, the top of the inner side of the vertical moving column 662 is connected with a tin supplement frame 660, the moving distance of the tin supplement frame 660 is 5cm from the top of the inner side of the vertical moving column 662 to the position 5cm above the concave-convex detection structure 661 when the concave-convex detection structure 661 is not moved, the distance between the tin supplement frame 660 and the concave-convex detection structure 661 enables the tin supplement frame 660 to vertically move to the bottom and then rotate by a certain angle, and the tin supplement frame 660 and the concave-convex detection structure can monitor and repair the concave-convex detection structure within the optimal working range without contacting with each other.
As shown in fig. 5, the tin supplement bracket 660 comprises an adjusting shaft 601 connected with a vertical moving column 662, one side of the adjusting shaft 601, which is close to the current collecting plate 33, can extend 5-10cm in the horizontal direction, and the rotation angle is 180-225 degrees, the tin supplement bracket 660 further comprises a coating plate 603 which is always perpendicular to the vertical moving column 662, the movable angle of the adjusting shaft 601 at the connection position can allow the tin supplement bracket 660 to move to the bottom and also perform extension adjustment to process the bottom of the current collecting plate 33, so that two devices are not obstructed on the same vertical line, the space inside the solid-state battery is further saved, the expansion of the polar plate and the electrolyte plate is supported, the density of energy is improved, the coating plate 603 perpendicular to 90 degrees can allow the repairing material to optimally contact with the current collecting plate 33 after being dissolved, and the repairing amount and the contact area can reach the degree of covering the plane of the current collecting plate 33, the effect of repair coverage is improved, and the possibility of oxidation reaction which may be caused is reduced.
As shown in fig. 6, the adjusting shaft 601 further includes a tin bar grid 602, 9 tin bars are provided in the adjusting shaft, the tin bars are in a spring structure with 10 turns, a blocking sheet is provided at the bottom of the tin bar at the frontmost end, a pushing column is provided at the endmost tin bar, a linkage relationship is provided between the blocking sheet and the pushing column, the tin bars are sn3ag0.5cu in the high-temperature lead-free solder paste, the spring structure is designed to enable the length of the tin bars to be reduced to the maximum on the premise of saving space, the number of the 9 tin bars can be provided for the service life of the solid-state battery, the tin bars do not need to be detached and added, the blocking sheet at the frontmost end and the pushing column at the rear end have a linkage effect, when the tin supplement frame 660 obtains a result of light sensation change, the blocking sheet sinks into one tin bar to reset immediately, the pushing column pushes immediately to push and add, and the next time can still automatically supplement and advance; in order to ensure the safety of the whole collector 33 surface, the tin-supplementing covering is directed at two planes of the collector 33 each time, so that the influence of partial oxidation reaction or electrochemical corrosion generated by gaps caused by local repair on electron circulation is prevented; it should be particularly noted here that the reason why the material for repairing does not use silver is that the cost of silver is too high, the melting point of silver is high, and the melting point of silver to be melted in the solid battery is easy to affect the safety of the battery, so that the high-temperature lead-free solder paste with low melting point is adopted, the resistivity is low, the conductivity is slightly inferior to that of silver, but the resistivity of current can also be reduced to the minimum, and the material is the best repairing material; the thickness of the plated layer of the tin bar after the current collecting plate 33 is plated is 0.1 μm, and is only 0.9 μm even after all the plated layers are plated nine times, and the thickness of the plated layer is small, so that the current collecting plate 33 can be protected even when the thickness is small.
As shown in fig. 6, the left end of the barrier sheet of the tin bar grid 602 is connected with a melting belt 604, which includes five inner melting particles, the temperature of the melting particles is 221 ℃, and the five uniformly distributed melting particles can contact with the tin bar from top to bottom, so that the tin bar is completely melted into a liquid state; 221 ℃ is the eutectic temperature of the high-temperature lead-free solder paste, so that the lead-free solder paste can be changed into liquid state, and the caused temperature can not influence the normal operation of the battery.
As shown in fig. 6, the melting belt 604 further includes a coating plate 603, and a plurality of heating plates are further included therein, the length of the liquid outlet of the coating plate 603 is equal to that of the current collecting plate 33, and the heating plates can make the liquid tin entering the coating plate be in a molten state, so that the liquid tin can be shaped only when contacting the current collecting plate 33, thereby preventing the tin bar from being solidified inside the coating plate 603, and the liquid outlet is as long as the current collecting plate 33, so as to ensure that the current collecting plate 33 is uniformly coated with a layer of conductive tin from top to bottom, thereby isolating external corrosion.
As shown in fig. 7, the fast conducting structure 44 includes friction plates 441 contacting with the positive plate and the negative plate, the friction plates 441 are connected to two ends of the inner side of the sliding buckle 440, the sliding buckle 440 is a right-angle U-shaped structure with an opening facing the direction of the positive plate and the negative plate, the left end of the inner side of the U-shaped structure is connected to a roller 442, the top of the roller 442 is electrically connected to the current collecting plate 33 through a wire connecting fixed pulley, the roller 442 is movably connected to a rail on the outer side of the plate and can reciprocate up and down along the plate, the wire is always in a telescopic state during movement and runs along the wire, the length of the wire is equal to the length of the plate, the U-shaped structure of the sliding buckle 440 can tightly clamp the plate and is not parallel to the plate, and is slightly biased to the inner side of the plate, so as to increase the pressure of contact, increase the heat generated, the region that the increase is heated enables the heat very fast leading-in polar plate in, improves the conductivity of polar plate, compares in prior art directly through the safety more to the mode of polar plate heating, adopts mechanical mode heating to let the battery go on simultaneously in circular telegram and improvement conductivity two steps, need not to carry out the short circuit process, lets the energy supply speed of battery obtain improving.
The control method of the solid-state battery pack of the present invention includes the steps of:
s10: the positive and negative poles of the load are connected to the terminal cap 22 of the solid-state battery, and the load is started by noting whether the connection between the positive and negative poles is correct.
S20: the lithium ions fall off from the negative plate and flow to the positive plate along the solid electrolyte plate, wherein the concentration of the electrolyte in the solid electrolyte plate is the lowest in the middle, and the concentration of the electrolyte at the two ends is higher at the positions closer to the positive plate and the negative plate, so that more lithium ions can be carried to the positive electrode, more current is generated, and sufficient current is provided for the load.
S30: after the current generated by the positive plate is collected by the current collecting sheet 33, the current is conducted to the load through the pole cap 22 to supply power to the load, so that a stable cycle is formed, and the whole discharging and power supplying process is completed after all lithium ions in the negative plate move to the positive plate.
S40: when the electric energy of the battery is exhausted, the battery needs to be charged, the positive electrode and the negative electrode of the charging end are connected to the pole cap 22 of the inner groove part 2, the current flows in through the current collecting sheet 33 of the positive electrode plate and flows to the negative electrode plate through the solid electrolyte plate, the movement speed of lithium ions is accelerated due to the fact that the concentration of the solid electrolyte plate close to one end of the positive electrode plate is high, the charging speed of the battery is obviously increased, and when all the lithium ions of the positive electrode plate move to the negative electrode plate, the charging is stopped.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. The utility model provides a solid-state battery, its structure includes shell body (1), still includes embedded inside slot part (2) in shell body (1), the surface of shell body (1) is connected with the prismatic strip of equidistance evenly distributed, the top of inside slot part (2) is including 44 utmost point cap (22), and wherein 22 are anodal cap, 22 are the negative pole cap, and 4 are 11 group's distributions altogether for a line, its characterized in that: the position of slot part (2) one end is connected with current collector piece (33) in utmost point post cap (22) is gone into deeply, the thickness of current collector piece (33) is 7 mu m, two utmost point post cap (22) share current collector piece (33) total 22 pieces, the below of current collector piece (33) is connected with electric core body (55), electric core body (55) are including 11 groups positive plate, negative plate, solid electrolyte board, and the equal swing joint in one side that positive plate and negative plate are close to shell body (1) leads structure (44) soon, lead structure (44) soon and be connected with current collector piece (33) electricity through the fixed pulley, and both ends all are connected with maintenance fast benefit structure (66) around current collector piece (33) of 1 st group and 11 th group, the area that maintenance fast benefit structure (66) cover slightly is greater than the surface area of piece current collector piece (33).
2. A solid state battery as claimed in claim 1, wherein: examine and repair fast benefit structure (66) and include vertical movement post (662) parallel with current collector (33), the inboard bottom of vertical movement post (662) articulates there is roughness to survey structure (661), the end of dispersing of roughness survey structure (661) is for leaking hopper-shaped and be 45 with the contained angle of perpendicular line, and the end of dispersing has concave lens with the junction of light emission end, and the light emission end still is connected with data processor, the position department that structure (661) and vertical movement post (662) are connected is surveyed to roughness has the hinge, and control range is between 135-180, and the power input of light emission end comes from current collector (33).
3. A solid state battery as claimed in claim 2, wherein: the top of the inner side of the vertical moving column (662) is connected with a tin supplement frame (660), and the moving distance of the tin supplement frame (660) is 5cm above the concave-convex degree detection structure (661) when the top of the inner side of the vertical moving column (662) does not move.
4. A solid state battery as claimed in claim 3, wherein: the tin supplementing frame (660) comprises an adjusting shaft (601) connected with the vertical moving column (662), one side of the adjusting shaft, close to the current collecting piece (33), can extend for 5-10cm in the horizontal direction, and the rotating angle is 180-225 degrees, and the tin supplementing frame (660) further comprises a coating plate (603) which is always perpendicular to the vertical moving column (662).
5. A solid state battery as claimed in claim 4, wherein: the adjusting shaft (601) further comprises a tin bar grid (602), 9 tin bars are arranged in the tin bar grid, the shape of each tin bar is of a spring structure with 10 turns, a blocking sheet is arranged at the bottom of the tin bar at the forefront end, a pushing column is arranged at the tail end of the tin bar, a linkage relation exists between the blocking sheet and the pushing column, and the tin bar is Sn3Ag0.5Cu in high-temperature lead-free solder paste.
6. A solid state battery as claimed in claim 5, wherein: the left end of the barrier sheet of the tin bar grid (602) is connected with a melting belt (604) which comprises five melting granules inside, and the temperature of the melting granules is 221 ℃.
7. A solid state battery as claimed in claim 6, wherein: the melting belt (604) further comprises a coating plate (603), a plurality of heating plates are further arranged in the melting belt, and the length of a liquid outlet of the coating plate (603) is equal to that of the current collecting piece (33).
8. A solid state battery as claimed in claim 1, wherein: lead structure (44) soon including friction disc (441) with positive plate, negative plate contact, friction disc (441) are connected at the both ends that slip was detained (440) inboard, slip and detain (440) for the right angle U type structure of opening to positive plate, negative plate direction, the inboard left end of U type structure is connected with gyro wheel (442), the top of gyro wheel (442) is connected the fixed pulley through the wire and is connected with current collection piece (33) electricity.
9. A method of controlling a solid state battery according to any one of claims 1 to 8, comprising the steps of:
s10: and connecting the positive electrode and the negative electrode of the load with a pole cap (22) of the solid-state battery, and starting the load by paying attention to whether the connection between the positive electrode and the negative electrode is correct.
S20: the lithium ions fall off from the negative plate and flow to the positive plate along the solid electrolyte plate, wherein the concentration of the electrolyte in the solid electrolyte plate is the lowest in the middle, and the concentration of the electrolyte at the two ends is higher at the positions closer to the positive plate and the negative plate, so that more lithium ions can be carried to the positive electrode, more current is generated, and sufficient current is provided for the load.
S30: after being collected by the current collecting sheet (33), the current generated by the positive plate is conducted to a load through the pole cap (22) to supply power to the load, so that a stable cycle is formed, and the whole discharging and power supplying process is completed after all lithium ions in the negative plate move to the positive plate.
S40: when the electric energy of the battery is exhausted and the battery needs to be charged, the positive electrode and the negative electrode of a charging end are connected to the pole cap (22) of the inner groove part (2), the current flows in through the current collecting sheet (33) of the positive electrode plate and flows to the negative electrode plate through the solid electrolyte plate, the movement speed of lithium ions is accelerated due to the fact that the concentration in the solid electrolyte plate close to one end of the positive electrode plate is high, the charging speed of the battery is obviously increased, and when all lithium ions of the positive electrode plate move to the negative electrode plate, the charging is stopped.
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| CN202010709206.7A CN111816811A (en) | 2020-07-22 | 2020-07-22 | Solid-state battery pack and control method thereof |
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