CN117878437A - Novel energy storage lead-acid storage battery pack - Google Patents
Novel energy storage lead-acid storage battery pack Download PDFInfo
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- CN117878437A CN117878437A CN202311783288.XA CN202311783288A CN117878437A CN 117878437 A CN117878437 A CN 117878437A CN 202311783288 A CN202311783288 A CN 202311783288A CN 117878437 A CN117878437 A CN 117878437A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 title claims abstract description 23
- 239000002253 acid Substances 0.000 title claims abstract description 21
- 239000011505 plaster Substances 0.000 claims abstract description 20
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 20
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 14
- 239000005011 phenolic resin Substances 0.000 claims abstract description 14
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 239000000440 bentonite Substances 0.000 claims description 30
- 229910000278 bentonite Inorganic materials 0.000 claims description 30
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 24
- 230000000996 additive effect Effects 0.000 claims description 24
- 238000000498 ball milling Methods 0.000 claims description 18
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 18
- 239000003607 modifier Substances 0.000 claims description 18
- 229920001223 polyethylene glycol Polymers 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 12
- 229910052681 coesite Inorganic materials 0.000 claims description 12
- 229910052906 cristobalite Inorganic materials 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- 229910052682 stishovite Inorganic materials 0.000 claims description 12
- 229910052905 tridymite Inorganic materials 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 239000000084 colloidal system Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007832 Na2SO4 Substances 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 229920005610 lignin Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 abstract description 5
- 239000000178 monomer Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 15
- 239000003292 glue Substances 0.000 description 5
- 238000011049 filling Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010926 waste battery Substances 0.000 description 1
Classifications
-
- 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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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a novel energy storage lead-acid storage battery pack, which consists of a positive plate, a negative plate, a baffle plate, a solid electrolyte, an ABS shell and conductive parts; the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process; the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board. The service life of the invention is equivalent to that of lithium iron phosphate, the cost is only 70% of that of lithium iron phosphate, and the recoverable residual value after the service life is finished is 30%, the whole group of storage batteries run stably, and the whole group of circulation is equivalent to that of a monomer circulation. The safety degree is more reliable, the use environment is looser, and the operation and maintenance cost is lower.
Description
Technical Field
The invention relates to the technical field of lead-acid storage batteries, in particular to a novel energy storage lead-acid storage battery pack.
Background
There are two main technical routes for energy storage batteries, one of which is lithium iron phosphate alkaline storage batteries; and the second is a lead-acid storage battery. Both of which have advantages and disadvantages. Therefore, the novel lead-acid storage battery which is special for energy storage, longer in cycle life, more convenient to use and maintain, recyclable in waste batteries and more advantageous in comprehensive cost is developed, and the market prospect is considerable. The energy storage projects are all used in groups, and how to make the battery pack more uniform, so that the whole battery pack has the equivalent cycle performance of a single battery, which is the key whether the novel energy storage project can succeed, and based on the key, the invention further improves the energy storage projects.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a novel energy storage lead-acid storage battery pack so as to solve the problems in the background art.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a novel energy storage lead-acid storage battery pack, which consists of a positive plate, a negative plate, a baffle plate, a solid electrolyte, an ABS shell and conductive parts;
the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process;
the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board;
the solid electrolyte is SiO2 colloid containing special additive and formula; the positive lead plaster is prepared from the following raw materials: and (3) a Barton lead powder and a positive electrode additive.
Preferably, the negative electrode lead plaster is prepared from the following raw materials in parts by weight:
0.2-0.5 part of lignin, 0.01-0.1 part of sodium lignin sulfonate, 0.6-1.0 part of C black I, 0.2-0.6 part of C black II and 0.02-0.05 part of nano graphene; 0.3-0.6 part of barium sulfate, 0.03-0.06 part of oxidized oil, 3-6 parts of sulfuric acid, 0.1-0.3 part of PEG, 6-10 parts of water and 75-85 parts of lead powder.
Preferably, the solid electrolyte is prepared from the following important raw materials:
0.2-0.4 part of nanoscale gas-phase SiO2, 0.2-0.3 part of Na2SO4, 0.1-0.3 part of polyvinyl alcohol, 0.1-0.2 part of polyethylene glycol, 0.1-0.2 part of glycerin, 0.1-0.2 part of polyacrylamide, 0.1-0.2 part of fatty alcohol polyoxyethylene ether, 0.2-0.3 part of polyethylene glycol and 0.2-0.3 part of NNO.
Preferably, the separator is a phenolic resin sheet separator, wherein the bottom thickness is more than 0.5mm, the resistance is less than 160mΩ, and the porosity is more than 65%; high reliability, long service life and meeting the cycle life requirement of 100% DOD more than 3000 times.
Preferably, the positive electrode additive is a bentonite modifier; the mass ratio of the Barton lead powder to the positive electrode additive is 4:1.
Preferably, the preparation method of the bentonite modifier comprises the following steps:
adding bentonite into a sufficient amount of hydrochloric acid solution with mass fraction of 5%, stirring and mixing uniformly, washing with water, drying, and performing ball milling treatment on 4-7 parts of dried bentonite, 1-3 parts of yttrium nitrate solution, 0.25-0.45 part of silane coupling agent KH560 and 1-2 parts of glycolic acid, washing with water, and drying to obtain the bentonite modifier.
Preferably, the yttrium nitrate solution has a mass fraction of 2-5%.
Preferably, the ball milling treatment conditions are as follows: ball milling is carried out for 1-2h at the rotating speed of 1000-1500 r/min.
Positive plate paste squeeze control
The deviation of the amount of the lead plaster in each calandria is less than 0.5g; the deviation of positive polar plate is controlled to be more than 75% within +/-5 g; control within + -10 g is greater than 98%;
and (3) curing control: the uniformity is improved by the special curing room; adopting a high-temperature curing process at 85 ℃; the spacing of each polar plate is evenly divided; weighing and matching positive and negative plates: weighing the positive plate and the negative plate piece by piece before assembly, and matching; scrapping the polar plate exceeding the standard of 20 g; and (3) pole group welding control: before assembly, each polar plate is cut and brushed with a polar lug, and residual paste and an oxide layer are eliminated; adopting a cast-welding mode for production, wherein the temperature deviation of a lead inlet channel of a cast-welding mould is less than 5 ℃ and the temperature deviation of a lead inlet is less than 10 ℃; and (3) glue injection control: the temperature of the colloid is controlled to be lower than-10 ℃ for glue filling; filling glue, and placing the battery in a water bath in the whole process of charging; the glue filling time interval of the single battery of each loop is less than 10min; the time interval deviation from the end of glue filling to the beginning of charging of each loop is less than 20min; and (3) formation control: charging a constant-temperature water tank; the temperature deviation in the formation process between all the cells is less than 5 ℃; ensuring that the content of PbO2% is 85-90%; cell screening: after the formation is finished, capacity screening and control deviation of all batteries are smaller than 0.2V, internal resistance screening and deviation control are smaller than 0.05mΩ, and floating charge voltage screening and control deviation are smaller than 0.1V.
Compared with the prior art, the invention has the following beneficial effects:
the service life of the invention is equivalent to that of lithium iron phosphate, the cost is only 70% of that of lithium iron phosphate, and the recoverable residual value after the service life is finished is 30%, the whole group of storage batteries run stably, and the whole group of circulation is equivalent to that of a monomer circulation. The safety degree is more reliable, the use environment is more relaxed, and the operation and maintenance cost is lower; the solid electrolyte has controllable and stable gel time, safety and high conductivity; the special phenolic resin separator has high porosity and large pore diameter, and can provide lower resistance and service life; special measures are taken in the production process, the uniformity of each index is strictly controlled, and the storage battery pack has an open-circuit voltage uniform deviation of <20mv, an internal resistance uniform deviation of <0.05mΩ, a floating charge voltage uniform deviation of <100mv and a capacity uniform deviation of <1%; through testing, 100% DOD of a single life cycle is more than 3000 times, and 80% DOD of the whole battery pack can reach more than 3800 times.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The novel energy storage lead-acid storage battery pack comprises a positive plate, a negative plate, a separator, a solid electrolyte, an ABS shell and conductive parts;
the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process;
the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board;
the solid electrolyte is SiO2 colloid containing special additive and formula; the positive lead plaster is prepared from the following raw materials: and (3) a Barton lead powder and a positive electrode additive.
The negative electrode lead plaster of the embodiment is prepared from the following raw materials in parts by weight:
0.2-0.5 part of lignin, 0.01-0.1 part of sodium lignin sulfonate, 0.6-1.0 part of C black I, 0.2-0.6 part of C black II and 0.02-0.05 part of nano graphene; 0.3-0.6 part of barium sulfate, 0.03-0.06 part of oxidized oil, 3-6 parts of sulfuric acid, 0.1-0.3 part of PEG, 6-10 parts of water and 75-85 parts of lead powder.
The solid electrolyte of the embodiment is prepared from the following important raw materials:
0.2-0.4 part of nanoscale gas-phase SiO2, 0.2-0.3 part of Na2SO4, 0.1-0.3 part of polyvinyl alcohol, 0.1-0.2 part of polyethylene glycol, 0.1-0.2 part of glycerin, 0.1-0.2 part of polyacrylamide, 0.1-0.2 part of fatty alcohol polyoxyethylene ether, 0.2-0.3 part of polyethylene glycol and 0.2-0.3 part of NNO.
The separator of the embodiment adopts a phenolic resin sheet type separator, the bottom thickness is more than 0.5mm, the resistance is less than 160mΩ, and the porosity is more than 65%; high reliability, long service life and meeting the cycle life requirement of 100% DOD more than 3000 times.
The positive electrode additive of the embodiment is a bentonite modifier; the mass ratio of the Barton lead powder to the positive electrode additive is 4:1.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
adding bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 5%, stirring and mixing uniformly, washing with water, drying, and ball-milling 4 parts of dried bentonite, 1 part of yttrium nitrate solution, 0.25 part of silane coupling agent KH560 and 1 part of glycolic acid, washing with water, and drying to obtain the bentonite modifier.
The mass fraction of the yttrium nitrate solution of this example was 2%.
The conditions for the ball milling treatment of this example were: ball milling is carried out for 1h at a rotating speed of 1000 r/min.
Example 1.
The novel energy storage lead-acid storage battery pack comprises a positive plate, a negative plate, a separator, a solid electrolyte, an ABS shell and conductive parts;
the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process;
the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board;
the solid electrolyte is SiO2 colloid containing special additive and formula; the positive lead plaster is prepared from the following raw materials: and (3) a Barton lead powder and a positive electrode additive.
The negative electrode lead plaster of the embodiment is prepared from the following raw materials in parts by weight:
0.2 part of lignin, 0.01 part of sodium lignin sulfonate, 0.6 part of C black I, 0.2 part of C black II and 0.02 part of nano graphene; 0.3 part of barium sulfate, 0.03 part of oxidized oil, 3 parts of sulfuric acid, 0.1 part of PEG, 6 parts of water and 75 parts of lead powder.
The solid electrolyte of the embodiment is prepared from the following important raw materials:
0.2 part of nanoscale gas-phase SiO2, 0.2 part of Na2SO4, 0.1 part of polyvinyl alcohol, 0.1 part of polyethylene glycol, 0.1 part of glycerin, 0.1 part of polyacrylamide, 0.1 part of fatty alcohol-polyoxyethylene ether, 0.2 part of polyethylene glycol and 0.2 part of NNO.
The separator of the embodiment adopts a phenolic resin sheet type separator, the bottom thickness is more than 0.5mm, the resistance is less than 160mΩ, and the porosity is more than 65%; high reliability, long service life and meeting the cycle life requirement of 100% DOD more than 3000 times.
The positive electrode additive of the embodiment is a bentonite modifier; the mass ratio of the Barton lead powder to the positive electrode additive is 4:1.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
adding bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 5%, stirring and mixing uniformly, washing with water, drying, and ball-milling 4 parts of dried bentonite, 1 part of yttrium nitrate solution, 0.25 part of silane coupling agent KH560 and 1 part of glycolic acid, washing with water, and drying to obtain the bentonite modifier.
The mass fraction of the yttrium nitrate solution of this example was 2%.
The conditions for the ball milling treatment of this example were: ball milling is carried out for 1h at a rotating speed of 1000 r/min.
Example 2.
The novel energy storage lead-acid storage battery pack comprises a positive plate, a negative plate, a separator, a solid electrolyte, an ABS shell and conductive parts;
the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process;
the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board;
the solid electrolyte is SiO2 colloid containing special additive and formula; the positive lead plaster is prepared from the following raw materials: and (3) a Barton lead powder and a positive electrode additive.
The negative electrode lead plaster of the embodiment is prepared from the following raw materials in parts by weight:
0.5 part of lignin, 0.1 part of sodium lignin sulfonate, 1.0 part of C black I, 0.6 part of C black II and 0.05 part of nano graphene; 0.6 part of barium sulfate, 0.06 part of oxidized oil, 6 parts of sulfuric acid, 0.3 part of PEG, 10 parts of water and 85 parts of lead powder.
The solid electrolyte of the embodiment is prepared from the following important raw materials:
0.4 part of nanoscale gas-phase SiO2, 0.3 part of Na2SO4, 0.3 part of polyvinyl alcohol, 0.2 part of polyethylene glycol, 0.2 part of glycerin, 0.2 part of polyacrylamide, 0.2 part of fatty alcohol-polyoxyethylene ether, 0.3 part of polyethylene glycol and 0.3 part of NNO.
The separator of the embodiment adopts a phenolic resin sheet type separator, the bottom thickness is more than 0.5mm, the resistance is less than 160mΩ, and the porosity is more than 65%; high reliability, long service life and meeting the cycle life requirement of 100% DOD more than 3000 times.
The positive electrode additive of the embodiment is a bentonite modifier; the mass ratio of the Barton lead powder to the positive electrode additive is 4:1.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
and adding bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 5%, stirring and mixing uniformly, washing and drying, and performing ball milling treatment on 7 parts of dried bentonite, 3 parts of yttrium nitrate solution, 0.45 part of silane coupling agent KH560 and 2 parts of glycolic acid, washing and drying to obtain the bentonite modifier.
The mass fraction of the yttrium nitrate solution of this example was 5%.
The conditions for the ball milling treatment of this example were: ball milling is carried out for 2h at a rotating speed of 1500 r/min.
Example 3.
The novel energy storage lead-acid storage battery pack comprises a positive plate, a negative plate, a separator, a solid electrolyte, an ABS shell and conductive parts;
the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process;
the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board;
the solid electrolyte is SiO2 colloid containing special additive and formula; the positive lead plaster is prepared from the following raw materials: and (3) a Barton lead powder and a positive electrode additive.
The negative electrode lead plaster of the embodiment is prepared from the following raw materials in parts by weight:
0.35 part of lignin, 0.05 part of sodium lignin sulfonate, 0.8 part of C black I, 0.4 part of C black II and 0.035 part of nano graphene; 0.45 part of barium sulfate, 0.045 part of oxidized oil, 4.5 parts of sulfuric acid, 0.2 part of PEG, 8 parts of water and 80 parts of lead powder.
The solid electrolyte of the embodiment is prepared from the following important raw materials:
0.3 part of nanoscale gas-phase SiO2, 0.25 part of Na2SO4, 0.2 part of polyvinyl alcohol, 0.15 part of polyethylene glycol, 0.15 part of glycerin, 0.15 part of polyacrylamide, 0.15 part of fatty alcohol-polyoxyethylene ether, 0.25 part of polyethylene glycol and 0.25 part of NNO.
The separator of the embodiment adopts a phenolic resin sheet type separator, the bottom thickness is more than 0.5mm, the resistance is less than 160mΩ, and the porosity is more than 65%; high reliability, long service life and meeting the cycle life requirement of 100% DOD more than 3000 times.
The positive electrode additive of the embodiment is a bentonite modifier; the mass ratio of the Barton lead powder to the positive electrode additive is 4:1.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
adding bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 5%, stirring and mixing uniformly, washing with water, drying, and performing ball milling treatment on 5.5 parts of dried bentonite, 2 parts of yttrium nitrate solution, 0.30 part of silane coupling agent KH560 and 1.5 parts of glycolic acid, washing with water, and drying to obtain the bentonite modifier.
The mass fraction of the yttrium nitrate solution of this example was 3.5%.
The conditions for the ball milling treatment of this example were: ball milling is carried out for 1.5h at the rotating speed of 1250 r/min.
The rechargeability test of example 3; 2V770,2.35V float charge capacity factor of 24h and 168 h;
rbf24h = 100.5%; rbf168 h=101.8%; monomer recycle test 5 hrs 100% dod;
2v770ah,133a discharge for 4h,2.35v 14h, current limit 154A
The entire set of cycles was tested for 5 hrs 80% dod:2V770AH348 only, 133A discharge for 4h,2.35V 12h, current limit 154A
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The novel energy storage lead-acid storage battery pack is characterized by comprising a positive plate, a negative plate, a separator, a solid electrolyte, an ABS shell and conductive parts;
the positive plate is formed by producing a positive skeleton and a calandria in a special positive lead paste extrusion mode and curing the positive skeleton and the calandria through a special curing process;
the negative plate is formed by coating special negative lead plaster on a negative grid and curing; the partition board adopts a special phenolic resin professional partition board;
the solid electrolyte is SiO2 colloid containing special additive and formula; the positive lead plaster is prepared from the following raw materials: and (3) a Barton lead powder and a positive electrode additive.
2. The novel energy storage lead-acid storage battery pack according to claim 1, wherein the negative electrode lead plaster is prepared from the following raw materials in parts by weight:
0.2-0.5 part of lignin, 0.01-0.1 part of sodium lignin sulfonate, 0.6-1.0 part of C black I, 0.2-0.6 part of C black II and 0.02-0.05 part of nano graphene; 0.3-0.6 part of barium sulfate, 0.03-0.06 part of oxidized oil, 3-6 parts of sulfuric acid, 0.1-0.3 part of PEG, 6-10 parts of water and 75-85 parts of lead powder.
3. The novel energy storage lead-acid storage battery pack according to claim 1, wherein the solid electrolyte is prepared from the following important raw materials:
0.2-0.4 part of nanoscale gas-phase SiO2, 0.2-0.3 part of Na2SO4, 0.1-0.3 part of polyvinyl alcohol, 0.1-0.2 part of polyethylene glycol, 0.1-0.2 part of glycerin, 0.1-0.2 part of polyacrylamide, 0.1-0.2 part of fatty alcohol polyoxyethylene ether, 0.2-0.3 part of polyethylene glycol and 0.2-0.3 part of NNO.
4. The novel energy storage lead-acid storage battery pack according to claim 1, wherein the separator is a phenolic resin sheet separator, the bottom thickness is more than 0.5mm, the resistance is less than 160mΩ, and the porosity is more than 65%; high reliability, long service life and meeting the cycle life requirement of 100% DOD more than 3000 times.
5. The novel energy storage lead acid battery of claim 1, wherein the positive electrode additive is a bentonite modifier; the mass ratio of the Barton lead powder to the positive electrode additive is 4:1.
6. The novel energy storage lead-acid storage battery pack according to claim 5, wherein the preparation method of the bentonite modifier is as follows:
adding bentonite into a sufficient amount of hydrochloric acid solution with mass fraction of 5%, stirring and mixing uniformly, washing with water, drying, and performing ball milling treatment on 4-7 parts of dried bentonite, 1-3 parts of yttrium nitrate solution, 0.25-0.45 part of silane coupling agent KH560 and 1-2 parts of glycolic acid, washing with water, and drying to obtain the bentonite modifier.
7. The novel energy storage lead-acid storage battery pack according to claim 6, wherein the mass fraction of the yttrium nitrate solution is 2-5%.
8. The novel energy storage lead acid battery pack according to claim 6, wherein the ball milling process conditions are: ball milling is carried out for 1-2h at the rotating speed of 1000-1500 r/min.
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