CN102074743B - Fixed valve-control type sealing lead-acid accumulator for fields of solar energy and wind energy - Google Patents
Fixed valve-control type sealing lead-acid accumulator for fields of solar energy and wind energy Download PDFInfo
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- CN102074743B CN102074743B CN2010106078340A CN201010607834A CN102074743B CN 102074743 B CN102074743 B CN 102074743B CN 2010106078340 A CN2010106078340 A CN 2010106078340A CN 201010607834 A CN201010607834 A CN 201010607834A CN 102074743 B CN102074743 B CN 102074743B
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Abstract
The invention provides a fixed valve-control type sealing lead-acid accumulator for the fields of solar energy and wind energy. A pole plate comprises 1.2 to 2.5 mass percent of Sn and 0.1 to 0.3 mass percent of additive; an a value is 0.4 to 0.5 and a gamma value is 0.80 to 0.90g/cm<2>; the porosity of a baffle plate is between 92 and 94 percent, and the specific gravity is between 160 and 200g/mm.m<2>; and a part inside the accumulator at the position of a safety valve is provided with a catalyst, namely palladium or platinum, and the additive is superconductive carbon black of which the pH value is 8.5 and specific surface area (BET) is 1,000m<2>/g. The accumulator provided by the method not only greatly reduces floating charge currents, but also improves the heat resistant out-of-control capability to a great extent. The accumulator has high primary capacity and has over-long cycle life under remote and severe conditions, wherein the cycle life of 100 depth of discharge (DOD) percent can reach 900 times when the floating charge of 2.23 V is performed for 14 hours.
Description
Technical field
The present invention relates to the valve-control sealed lead acid battery, relate in particular to the storage battery for solar energy, the energy storage of wind energy field.
Background technology
Along with economic development, traditional energy is in short supply gradually, so new forms of energy have been the indispensable parts of future development for the renewable new forms of energy of economical and environment-friendly especially.As the energy-storage battery of the long-term purposes of photovoltaic energy, its capacity, life-span etc. are to affect the important factor in order that these new forms of energy obtain fully and economy is used.
Be used for the VRLA storage battery in solar energy, wind energy field, often be in remote area, battery not only often is in heavy-current discharge, also often is in and owes to fill state, because battery uses for a long time, off-capacity, thermal runaway etc. becomes the critical limitation factor of battery life simultaneously.
The capacity of storage battery and the useful life of storage battery are the paradox of a pair of very difficult solution, mutual restriction.
Dividing plate meets passage as storage place and the oxygen of battery electrolyte, and the porosity of dividing plate and ballistic properties also become the key factor of measurement; Dividing plate in the market generally all has higher porosity, and capacity is higher, but does not reach the requirement of long-life batteries dividing plate useful life; It is generally acknowledged that ballistic properties is high, the long service life of battery, however often capacity is unsatisfactory for the high dividing plate of ballistic properties.
Pole plate is as the core of battery capacity, and its design and lead paste formula have important impact to capacity.Generally speaking, a of grid design, γ value are larger, and the battery initial capacity is higher, but the life-span decay is very fast; And a, the γ value of reduction battery cause again battery capacity not enough easily.From the angle of pole plate, also be the accumulator property index that is difficult to the two-areas of competence useful life of capacity and storage battery.
Because, the technical barrier that these are difficult to resolve, the in the market rarely seen storage battery that is used for solar energy, the energy storage of wind energy field that can satisfy above-mentioned handling characteristics.
Summary of the invention
Technical problem to be solved by this invention provides a kind of for solar wind-energy field fixed valve controlled sealed lead-acid accumulator, and its capacity is high, long service life.For this reason, the present invention is by the following technical solutions:
The Sn content 1.2-2.5% of its pole plate, a value 0.4-0.5, γ value are at 0.80-0.90g/cm
2, additive level 0.1-0.3%; The porosity 92-94% of its dividing plate, proportion are 160 ~ 200g/mm.m
2Its arranged at safety valve is provided with catalyst in the part of internal storage battery, described catalyst Wei Palladium or platinum, and described additive is pH value 8.5, BET1000 m
2The superconduction carbon black of/g, described percentage are mass percent.
Owing to adopt technical scheme of the present invention, storage battery provided by the present invention not only reduces the battery float electric current greatly, greatly the raising of degree battery heat resistanceheat resistant ability out of control (contained Cuiization Ji Palladium or platinum accelerate the chemical combination of inside battery water in the safety valve, make not dehydration of inside battery); Have excellent initial capacity (10 hour rates reach 11 hours 10 minutes discharge time), also make battery under remote rugged environment simultaneously, have super excellent cycle life, its 2.23V floating charge 14h, 100DOD% cycle life reaches 900 times.
Description of drawings
The storage battery that Fig. 1 provides for the embodiment of the invention 9 and the heat resistanceheat resistant contrast figure out of control of traditional storage battery.
Under the storage battery that Fig. 2 provides for the embodiment of the invention 7,9,10 and the in short-term charge condition of traditional storage battery (owing to fill), 100DOD%(discharges fully) the contrast cycle graph.
Conventional batteries is for containing Sn amount 0.9%, γ value 1.33g/cm2, a value 0.7-0.8 and separator porosity 95.8%, proportion 150 g/mm.m
2Carry out combo.
Embodiment
Embodiment a, b, c are the enforcement to battery grid.
Embodiment a: the grid that contains Sn amount 0.9%, γ value 1.33g/cm2, a value 0.7-0.8 is tested its pressure drop and corrosion rate under the 0.1C10 condition.
Embodiment b: under the 0.1C10 condition, test its pressure drop and corrosion rate with the grid that contains Sn amount 1.2-1.9%, γ value 1.33g/cm2, a value 0.7-0.8.
Embodiment c: under the 0.1C10 condition, test its pressure drop and corrosion rate with the grid that contains Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5.
In embodiment a, b, along with the increase of Sn content, grid corrosion fatigue life ability is stronger, and pressure drop there is no significant change, embodiment b than the anti-corrosion rate reduction of embodiment a 7.5%.
In embodiment a, c, the γ of embodiment c grid, a design load descend, and its grid pressure drop obviously reduces, and has reduced about 60%(than embodiment a pressure drop and has been reduced to 2.497mV by 4.189mV).
As can be seen from the above embodiments, embodiment c not only has the strong corrosion resistant ability, has simultaneously extremely low internal resistance, and this kind grid not only has excellent designed life, simultaneously also having good electricity and lead and large current discharging capability, is must be indispensable in a new generation's long-life energy-storage battery.
Following examples are battery index of correlation content (accounting for the percentage of its total content)
Embodiment 1: with containing Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5 and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 2: with the pole plate that contains Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.1% and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 3: with the pole plate that contains Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.2% and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 4: with the pole plate that contains Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.3% and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 5: with the pole plate that contains Sn amount 1.9-2.0%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.1% and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 6: with the pole plate that contains Sn amount 2.0-2.2%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.1% and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 7: with the pole plate that contains Sn amount 2.0-2.2%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.3% and separator porosity 93.5%, proportion 160 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 8: with the pole plate that contains Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.1% and separator porosity 92%, proportion 180 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 9: with the pole plate that contains Sn amount 1.2-1.9%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.3% and separator porosity 92%, proportion 180 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 10: with the pole plate that contains Sn amount 1.9-2.0%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.3% and separator porosity 92%, proportion 180 g/mm.m
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
Embodiment 11: the pole plate and separator porosity 92-94%, the proportion 160-200 g/mm.m that contain Sn amount 1.2-2.5%, γ value 0.8504g/cm2, a value 0.4-0.5, additive 0.1-0.3%
2Carry out combo, the catalysis safety valve of screwing on after battery rolls off the production line, catalyst are located at arranged at safety valve in the part of internal storage battery, catalyst Wei Palladium or platinum.
In embodiment 1, battery γ value, a value all are lower than normal battery, so that the battery cost effectively reduces by 5%, though the qualified compared with normal battery on the low side 3% of battery 10 hour rate capacity; By embodiment 2, battery 10 hour rate capacity reach normal battery level (10 hours 30 minutes).
In embodiment 2-4, add the additive of different content, along with the increase of additive level, the battery initial capacity is improved; Embodiment 4 has increased by 6% than embodiment 2 initial capacities, and initial capacity reaches 11 hours, but battery life is compared with normal battery and be there is no raising.
In embodiment 2,5,6, aspect the battery corrosion fatigue life, along with the raising of stanniferous amount, the battery corrosion fatigue life increases, and embodiment 5 has prolonged 25% than embodiment 2 corrosion fatigue lifes, but battery capacity there is no improvement.
In embodiment 7, stanniferous amount and additive all adopt preferred value, nearly 11 hours of its battery 10 hour rate discharge capacities, and battery cycle life has increased nearly 30% simultaneously.(seeing accompanying drawing 2)
In embodiment 8, dividing plate quantitatively increases to 180 g/mm.m2 by 160 g/mm.m2, and the initial capacity of battery is unchanged, and comparatively speaking, cycle life improves 10%.
In embodiment 9, its relative embodiment 8 that fills a prescription has increased additive, and initial capacity increases by 5% than embodiment 8, but the life-span there is no improvement, but its prescription has obviously reduced the battery high-temperature floating current, has greatly improved battery heat resistanceheat resistant ability out of control.
Consider from cost and battery capacity, life-span, determine that finally embodiment 10 is preferred version (life-span can improve 50% in theory).Battery according to this prescription production, not only has excellent initial capacity (10 hour rate discharge capacities 11 hours 10 minutes), simultaneously within the in short-term charging interval, also has the cycle life of overlength-2.23V floating charge 14h, C10 capacity discharge (100%DOD circulation) reaches (seeing accompanying drawing 2) 900 times
In embodiment 11 component ratio scopes, can produce the storage battery for solar energy, wind energy field energy storage different model, compared with former battery, not only initial capacity excellent (10 hour rate discharge capacities reach 11 hours 10 minutes), have preferably heat resistanceheat resistant ability out of control, simultaneously in short-term charging, under the discharge cycles condition, has excellent cycle life fully.
Claims (2)
1. be used for solar energy, wind energy field fixed valve controlled sealed lead-acid accumulator, it is characterized in that Sn content 1.2-2.5%, α value 0.4-0.5, the γ value of its pole plate are at 0.80-0.90g/cm
2, additive level 0.1-0.3%; The porosity 92-94% of its dividing plate, proportion are 160～200g/mm.m
2Its arranged at safety valve is provided with catalyst in the part of internal storage battery, described catalyst Wei Palladium or platinum, and described additive is pH value 8.5, BET1000m
2The superconduction carbon black of/g, described percentage are mass percent.
2. as claimed in claim 1 for solar energy, wind energy field fixed valve controlled sealed lead-acid accumulator, it is characterized in that the Sn that contains of pole plate measures 1.9-2.0%, γ value 0.8504g/cm
2, additive level 0.3%, dividing plate proportion 180g/mm.m
2
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| CN2010106078340A CN102074743B (en) | 2010-12-27 | 2010-12-27 | Fixed valve-control type sealing lead-acid accumulator for fields of solar energy and wind energy |
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| CN2010106078340A CN102074743B (en) | 2010-12-27 | 2010-12-27 | Fixed valve-control type sealing lead-acid accumulator for fields of solar energy and wind energy |
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| CN102074743B true CN102074743B (en) | 2013-01-23 |
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| CN104377366B (en) * | 2014-11-13 | 2017-02-08 | 浙江南都电源动力股份有限公司 | High-power long-life valve-controlled sealed lead-acid storage battery for data center |
| CN112885988A (en) * | 2021-01-07 | 2021-06-01 | 浙江南都电源动力股份有限公司 | 12V low-voltage electrical system AGM manufacturing process for BEV automobile and battery |
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Non-Patent Citations (4)
| Title |
|---|
| A theory of the grid/positive active-mass(PAM) interface and possible methods to improve PAM utilization and cycle life of lead/acid batteries;D.Pavlov;《Journal of Power Sources》;19951231;第53卷;9-21 * |
| D.Pavlov.A theory of the grid/positive active-mass(PAM) interface and possible methods to improve PAM utilization and cycle life of lead/acid batteries.《Journal of Power Sources》.1995,第53卷9-21. |
| 华寿南 等.铅酸蓄电池板栅和合金设计中的几个因子.《蓄电池》.2004,(第3期),99-101. |
| 铅酸蓄电池板栅和合金设计中的几个因子;华寿南 等;《蓄电池》;20041231(第3期);99-101 * |
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