CN108110202B - Battery acid circulation container formation device and method for electric power-assisted vehicle - Google Patents
Battery acid circulation container formation device and method for electric power-assisted vehicle Download PDFInfo
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- CN108110202B CN108110202B CN201711330363.1A CN201711330363A CN108110202B CN 108110202 B CN108110202 B CN 108110202B CN 201711330363 A CN201711330363 A CN 201711330363A CN 108110202 B CN108110202 B CN 108110202B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
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- 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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/121—Valve regulated lead acid batteries [VRLA]
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- 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
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a battery container formation device and a method, provides a battery acid circulation container formation device and a method for an electric power-assisted vehicle, which have the advantages of short container formation time, good formation effect, time-saving and labor-saving acid pumping process and low production cost, solves the technical problems of long container formation time, low efficiency, poor formation effect and the like caused by only adopting container formation in an acid kettle in the prior art, and comprises a battery assembly consisting of a plurality of battery units, be equipped with the liquid feeding hole on battery cell's top surface respectively the downthehole liquid feeding pipe and fluid-discharge tube of pegging graft simultaneously of liquid feeding extend to the top of baffle, and the lower port of fluid-discharge tube extends to in the battery cell and is close to the lower port in liquid feeding hole, and the butt joint keeps the series connection intercommunication through adjacent liquid feeding pipe and fluid-discharge tube upper port again between the battery cell, and when internalizing becomes, comes from the formation electrolyte that the import of liquid feeding pipe top to be the drippage form and drips.
Description
Technical Field
The invention relates to a battery acid circulation internal formation device and method, in particular to a battery acid circulation internal formation device and method for an electric power-assisted vehicle, which are short in internal formation time, good in formation effect and time-saving and labor-saving in an acid pumping process.
Background
The electric moped battery has the characteristics of maintenance free, oxygen recombination and long service life due to the adoption of the lean solution design and the high assembly pressure design of the AGM partition plate, so that the electric moped battery is widely used. With the enhancement of environmental awareness, the battery formation generally adopts an internal formation process with less pollution, and the existing battery internal formation generally comprises the following steps: the acid pot internal formation, the acid circulation internal formation and the quantitative acid adding internal formation are three types, wherein the acid pot internal formation generally has the problems of long formation time and low efficiency, the distribution uniformity of acid in a battery unit in the internal formation process is poor, and the diffusion speed is low. The existing acid cycle internal formation process comprises the following steps: the acid circulation plug is inserted into the battery and comprises an inlet pipe and an outlet pipe, the acid liquor flows during acid circulation, the temperature of the flowing acid liquor can be reduced, the heat generated in the charging process can be taken away, the temperature of the battery can not exceed a set value, the battery can be formed by using the low-density acid liquor, the acid liquor diffusion speed is higher than that of the acid kettle, the current formation can be increased, after the formation of the battery is finished, the plug needs to be removed, the battery is overturned to pour out the low-density acid liquor in the battery, then the battery is overturned to introduce the high-density finished battery acid for circulation, and therefore the acid circulation formation not only solves the problems of battery heating and large difference of acid density of each battery unit in the formation process, but also can adopt the reduced formation acid density to improve the formation current, improve the formation efficiency, shorten the formation time and save the cost and time, the formation efficiency and the battery quality are improved, the existing acid circulation formation is also disadvantageous, although the formation is faster than the acid kettle formation, the acid circulation is only on the upper portion of the battery, the acid at the bottom of the battery can reach the circulation plug only by breaking the barrier of the partition plate, the formation effect is not ideal, the battery needs to be turned over during acid changing, the labor intensity is high, the potential safety hazard is high, and the battery can only be used for formation of large and medium-sized batteries and cannot be used for small-sized batteries of electric mopeds due to the limitation of the structure.
Disclosure of Invention
The invention mainly provides a battery acid circulation container formation device and method for an electric power-assisted vehicle, which have the advantages of short container formation time, good formation effect, time-saving and labor-saving acid pumping process and low production cost, and solves the technical problems of long container formation time, low efficiency, poor formation effect and the like caused by only adopting container formation in an acid kettle in the prior art.
The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a device is formed in sour circulation of battery for electric bicycle, includes the battery complex that constitutes by a plurality of battery cell, is equipped with the liquid feeding hole on battery cell's top surface respectively the downthehole liquid feed pipe and the fluid-discharge tube of pegging graft simultaneously of liquid feeding have, and the lower port of liquid feed pipe extends to the top of baffle, and the lower port of fluid-discharge tube extends to in the battery cell and is close to the lower port in liquid feeding hole, and the butt joint keeps the series connection intercommunication through adjacent liquid feed pipe and fluid-discharge tube upper end mouth again between the battery cell, and when including forming, comes from the formation electrolyte that the import of liquid feed pipe top and is the drippage form. The liquid inlet pipes and the liquid discharge pipes on the plurality of battery units are connected in series and then are subjected to acid circulation internal formation simultaneously, formation connecting pipelines are reduced, the implementation of acid circulation internal formation is facilitated, bias current and detection errors caused by parallel connection of the formed electrolyte in adjacent battery units are avoided, the formed electrolyte is dripped through the inlet at the top end of the liquid inlet pipe to separate the connection of the electrolyte, the problems of space limitation in the acid circulation process and power crosstalk among the battery units are avoided, the acid circulation internal formation of the battery is perfectly realized, the flow direction of the electrolyte can be converted through suction of the liquid inlet pipe, acid pumping in the formation later stage is realized, disassembly and assembly are not needed, the formation and acid pumping are completed at one time, time and labor are saved, the uniformity of the battery unit formation is improved, the one-time formation rate of the battery is improved by 7-10 percentage points, the formation time of 2/3 and the charging amount of 1/2 are saved simultaneously, the energy consumption is low, and the manufacturing cost is greatly reduced.
Preferably, the liquid inlet pipe and the liquid discharge pipe are integrally formed, the lower end parts corresponding to the liquid inlet pipe and the liquid discharge pipe extend downwards and inwards to form a liquid inlet needle tube and a liquid discharge needle tube, and the liquid inlet needle tube and the liquid discharge needle tube are mutually matched and inserted in the liquid feeding hole. The liquid inlet pipe and the liquid outlet pipe are integrally formed, the strength is high, the installation is convenient, and the liquid inlet pipe is convenient to form a drip by adopting a needle cylinder structure with a thick upper part and a thin lower part.
Preferably, a circulation duct is transversely arranged above the battery assembly, the circulation duct corresponding to the upper end ports of the liquid inlet pipe and the liquid outlet pipe respectively extends downwards to form a liquid inlet port and a liquid outlet port, and the liquid inlet port and the liquid outlet port are respectively connected to the upper end ports of the corresponding liquid inlet pipe and the corresponding liquid outlet pipe in an abutting mode. The battery units are connected in series through the circulation conduit, so that the assembly and the connection are convenient.
More preferably, a drip nozzle is inserted into the liquid inlet port in a mutual matching manner, and the lower port of the drip nozzle extends into the liquid inlet pipe. Through setting up the drip nozzle, be convenient for drip behind the feed liquor port formation liquid drop.
Preferably, a sealing sleeve is sleeved on the corresponding liquid inlet pipe and the corresponding liquid outlet pipe outside the liquid feeding hole. The sealing sleeve ensures that the connection part of the battery unit and the liquid inlet pipe and the liquid outlet pipe keeps reliable sealing and stable support.
A battery acid cycle container formation method for an electric power-assisted vehicle comprises the following sequential steps:
1) inserting a liquid inlet pipe and a liquid outlet pipe into liquid adding holes of each battery unit of the battery assembly;
2) taking a circulating conduit, and correspondingly butting the upper ports of a liquid inlet pipe and a liquid outlet pipe of each battery unit on the circulating conduit;
3) inputting low-density formed electrolyte from the inlet end of the self-circulation duct, and leading out the formed electrolyte from the outlet end of the self-circulation duct after passing through each battery unit in sequence;
4) adjusting the input pressure and flow of the formed electrolyte at the inlet end of the circulating conduit to make the formed electrolyte in the circulating conduit drop into the corresponding liquid inlet pipe in a drop shape;
5) the pole on the battery unit is electrified to carry out container formation charging;
6) removing the formed electrolyte in the battery unit;
7) inputting high-density finished product battery acid from an inlet end of a self-circulation duct, leading out the finished product battery acid from an outlet end of the self-circulation duct after sequentially passing through each battery unit until the densities of the inlet end and the outlet end are consistent;
8) connecting the pole on the battery unit with electricity to perform acid pumping charging for 2-3 hours;
9) and setting the reverse flow time and the reverse flow times, sucking the inlet end of the circulating duct by negative pressure, and leading the outlet end of the circulating duct to be communicated with the atmosphere until all free acid in the battery unit is pumped out.
Preferably, the formation electrolyte in the battery unit in the step 6) is removed by reverse suction, and then the high-density finished battery acid is filled from the inlet end of the circulation duct, or the formation electrolyte in the battery unit is removed by directly connecting the high-density finished battery acid to the inlet end of the circulation duct. After the formed electrolyte in the battery unit is removed through reverse suction, high-density finished battery acid is connected from the inlet end, or the high-density finished battery acid is directly connected to the inlet end to push out the formed electrolyte in the battery unit until the density of the high-density finished battery acid at the outlet end of the circulating duct is consistent with that at the inlet end, and the acid pumping process is easy and labor-saving.
Preferably, the reverse flow time in the step 9) is 4 to 10 seconds, and the number of times of the reverse flow is 3 to 5 times. Repeated suction is performed for many times, so that the energy consumption is saved, and the free acid in the battery unit is favorably and completely removed.
The battery units forming the battery assembly are subjected to acid circulation internal formation and acid pumping after being connected in series, the operation is simple, the formation consistency of each battery unit is good, the formation time is short, the charging energy consumption is low, the acid pumping operation is time-saving and labor-saving, and the quality of the battery is ensured.
Therefore, the battery acid cycle container formation device and method for the electric power-assisted vehicle have the following advantages: through establishing each battery unit in series, and combining the bit form drippage ingenious solution of feed liquor and become the single check that the series connection leads to in the acid cycle, the feed liquor pipe prolongs to the border on the baffle, the convenient realization of the negative pressure mode of recycling reverse pump is taken out sour operation, it is labour saving and time saving to take out sour process, the series drawback in the present acid cycle internalization method has been solved from this, make its application that can be fine on the AGM baffle battery of small-size, the uniformity that the battery unit becomes is good, and improved and become one-time group rate 7-10 percentage points, 2/3 formation time and 1/2's charging amount have been practiced thrift simultaneously, the energy consumption is low, great reduction manufacturing cost.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a battery acid cycle container formation device for an electric power assisted vehicle, provided by the invention;
fig. 2 is an external view of the present invention.
The specific implementation mode is as follows:
the technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in figures 1 and 2, the battery acid circulation container formation device for the electric power-assisted vehicle comprises a battery assembly formed by six battery units 1, wherein liquid charging holes 2 are respectively formed in the middle parts of the top surfaces of the battery units 1, a liquid inlet pipe 3 and a liquid outlet pipe 4 are simultaneously inserted in each liquid charging hole 2, the liquid inlet pipe 3 and the liquid outlet pipe 4 are integrally formed, lower end parts corresponding to the liquid inlet pipe 3 and the liquid outlet pipe 4 extend downwards and inwards to form a liquid inlet needle tube 31 and a liquid outlet needle tube 41 which are integrally formed, the liquid inlet needle tube 31 and the liquid outlet needle tube 41 are mutually matched and inserted in the liquid charging holes 2, a sealing sleeve 8 is sleeved on the liquid inlet pipe 3 and the liquid outlet pipe 4 corresponding to the liquid charging holes 2, the sealing sleeve 8 is clamped between the lower end surfaces of the liquid inlet pipe 3 and the liquid outlet pipe 4 and the bottom surface of a counter bore of the liquid charging holes 2, the lower end opening of the liquid inlet pipe 3 extends to be, the lower port of fluid-discharge tube 4 extends to in the battery unit 1 and is close to the lower port of filling hole 2, all violently establish a circulation pipe 6 in every battery unit 1's top, circulation pipe 6 that corresponds with feed liquor pipe 3 and fluid-discharge tube 4 upper port respectively downwardly extending forms feed liquor port 61 and flowing back port 62, the airtight grafting that corresponds respectively of feed liquor pipe 3 and fluid-discharge tube 4 upper port is in feed liquor port 61 and flowing back port 62, battery unit 1 makes adjacent feed liquor pipe 3 and the butt joint of fluid-discharge tube 4 upper port keep establishing ties the intercommunication through circulation pipe 6, it has drip nozzle 7 to peg graft each other on feed liquor port 61, the lower port of drip nozzle 7 extends downwards in feed liquor pipe 3, when internal formation, the formation electrolyte that comes from the import of feed liquor pipe 3 top is the drippage form.
A battery acid cycle container formation method for an electric power-assisted vehicle comprises the following sequential steps:
1) inserting six pairs of liquid inlet pipes 3 and liquid outlet pipes 4 into liquid feeding holes 2 of six battery units 1 of the battery assembly;
2) taking six circulation conduits 6, wherein the upper ports of the liquid inlet pipe 3 and the liquid outlet pipe 4 of each battery unit 1 are correspondingly butted on the corresponding circulation conduits 6, and the six circulation conduits 6 are connected in series through pipelines;
3) inputting low-density formed electrolyte from the inlet end of the circulating duct 6, and leading out the formed electrolyte from the outlet end of the circulating duct 6 after passing through each battery unit 1 in sequence;
4) the input pressure and the flow of the formed electrolyte at the inlet end of the circulating duct 6 are adjusted, so that the formed electrolyte in the circulating duct 6 is dripped into the corresponding liquid inlet pipe 3 in a spot shape;
5) the pole on the battery unit 1 is electrified to carry out container formation charging;
6) the low-density formed electrolyte in the cell assembly is removed by reverse suction from the inlet end of the circulation duct 6;
7) inputting high-density finished product battery acid from an inlet end of a circulation duct 6, leading out the finished product battery acid from an outlet end of the circulation duct 6 after passing through each battery unit 1 in sequence until the densities of the inlet end and the outlet end are consistent and stable;
8) connecting the pole on the battery unit 1 with electricity to perform acid pumping charging for 2-3 hours;
9) and (3) sucking the inlet end of the circulating duct 6 by negative pressure, and leading the outlet end of the circulating duct 6 to the atmosphere, setting the reverse flow time to be 5 seconds, stopping the reverse flow for 5 seconds, and repeating the negative pressure sucking for 3 times until all free acid in the battery unit 1 is sucked out.
Example 2:
a battery acid cycle container formation method for an electric power-assisted vehicle comprises the following sequential steps:
1) inserting six pairs of liquid inlet pipes 3 and liquid outlet pipes 4 into liquid feeding holes 2 of six battery units 1 of the battery assembly;
2) taking six circulation conduits 6, wherein the upper ports of the liquid inlet pipe 3 and the liquid outlet pipe 4 of each battery unit 1 are correspondingly butted on the corresponding circulation conduits 6, and the six circulation conduits 6 are connected in series through pipelines;
3) inputting low-density formed electrolyte from the inlet end of the circulating duct 6, and leading out the formed electrolyte from the outlet end of the circulating duct 6 after passing through each battery unit 1 in sequence;
4) the input pressure and the flow of the formed electrolyte at the inlet end of the circulating duct 6 are adjusted, so that the formed electrolyte in the circulating duct 6 is dripped into the corresponding liquid inlet pipe 3 in a spot shape;
5) the pole on the battery unit 1 is electrified to carry out container formation charging;
6) directly inputting high-density finished product battery acid from an inlet end of a circulation duct 6, sequentially passing through each battery unit 1, and then leading out from an outlet end of the circulation duct 6 until the acid density of the inlet end and the acid density of the outlet end are consistent and stable;
7) connecting the pole on the battery unit 1 with electricity to perform acid pumping charging for 2-3 hours;
8) and (3) sucking the inlet end of the circulating duct 6 by negative pressure, and leading the outlet end of the circulating duct 6 to the atmosphere, setting the reverse flow time to be 5 seconds, stopping the reverse flow for 5 seconds, and repeating the negative pressure sucking for 4 times until all free acid in the battery unit 1 is sucked out.
The rest is exactly the same as in example 1.
The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a device is formed to electric bicycle battery acid cycle internalization, includes the battery complex that constitutes by a plurality of battery cell (1), is equipped with liquid feeding hole (2), its characterized in that respectively on the top surface of battery cell (1): a liquid inlet pipe (3) and a liquid outlet pipe (4) are simultaneously inserted into the liquid adding hole (2), the lower port of the liquid inlet pipe (3) extends to the upper part of the partition plate (5), the lower port of the liquid outlet pipe (4) extends into the battery unit (1) and is close to the lower port of the liquid adding hole (2), and the battery units (1) are in butt joint with the upper ports of the liquid outlet pipes (4) through the adjacent liquid inlet pipes (3) to be kept in series communication; a circulation conduit (6) is transversely arranged above the battery assembly, the circulation conduit (6) corresponding to the upper ports of the liquid inlet pipe (3) and the liquid outlet pipe (4) respectively extends downwards to form a liquid inlet port (61) and a liquid outlet port (62), and the liquid inlet port (61) and the liquid outlet port (62) are respectively butted on the upper ports of the corresponding liquid inlet pipe (3) and the corresponding liquid outlet pipe (4); a sealing sleeve (8) is sleeved on the corresponding liquid inlet pipe (3) and the corresponding liquid outlet pipe (4) outside the liquid adding hole (2); and during internal formation, the formed electrolyte input pressure and flow at the inlet end of the circulating conduit (6) are adjusted, so that the formed electrolyte in the circulating conduit (6) is dripped into the corresponding liquid inlet pipe (3) in a drop shape, and the connection of the electrolyte is cut off.
2. The battery acid cycle container formation device for the electric power assisted vehicle according to claim 1, characterized in that: the liquid inlet pipe (3) and the liquid discharge pipe (4) are integrally formed, the lower end parts corresponding to the liquid inlet pipe (3) and the liquid discharge pipe (4) extend downwards and inwards to form a liquid inlet needle pipe (31) and a liquid discharge needle pipe (41), and the liquid inlet needle pipe (31) and the liquid discharge needle pipe (41) are mutually matched and inserted in the liquid feeding hole (2).
3. The battery acid cycle container formation device for the electric power assisted vehicle according to claim 1, characterized in that: the liquid inlet port (61) is mutually matched and inserted with a drip nozzle (7), and the lower port of the drip nozzle (7) extends into the liquid inlet pipe (3).
4. The battery acid cycle container formation method for the electric power-assisted vehicle is characterized by comprising the following steps: the method comprises the following steps:
1) inserting a liquid inlet pipe (3) and a liquid outlet pipe (4) into liquid adding holes (2) of each battery unit (1) of the battery assembly;
2) taking a circulating conduit (6), and correspondingly butting the upper ports of a liquid inlet pipe (3) and a liquid outlet pipe (4) of each battery unit (1) on the circulating conduit (6);
3) inputting low-density formed electrolyte from the inlet end of the circulating duct (6), and leading out the formed electrolyte from the outlet end of the circulating duct (6) after passing through each battery unit (1) in sequence;
4) the input pressure and the flow of the formed electrolyte at the inlet end of the circulating duct (6) are adjusted, so that the formed electrolyte in the circulating duct (6) is dripped into the corresponding liquid inlet pipe (3) in a drip shape;
5) the pole on the battery unit (1) is electrified to carry out internal formation charging;
6) removing the formed electrolyte in the battery cell (1);
7) inputting high-density finished product battery acid from the inlet end of the self-circulation duct (6), leading out the finished product battery acid from the outlet end of the self-circulation duct (6) after passing through each battery unit (1) in sequence until the acid density of the inlet end is consistent with that of the outlet end;
8) connecting the pole on the battery unit (1) with electricity to perform acid pumping charging for 2-3 hours;
9) and setting the reverse flow time and the reverse flow times, sucking the inlet end of the circulating duct (6) by negative pressure, and leading the outlet end of the circulating duct (6) to be communicated with the atmosphere until all free acid in the battery unit (1) is pumped out.
5. The battery acid cycle container formation method for the electric power assisted vehicle according to claim 4, characterized in that: and in the step 6), the formed electrolyte in the battery unit (1) is removed by reverse suction, and then the high-density finished battery acid is filled from the inlet end of the circulating duct (6), or the formed electrolyte in the battery unit is removed by directly connecting the high-density finished battery acid to the inlet end of the circulating duct (6).
6. The battery acid cycle container formation method for the electric power assisted vehicle according to claim 4, characterized in that: the reverse flow time in the step 9) is 4 to 10 seconds, and the number of times of the reverse flow is 3 to 5 times.
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| CN110718711B (en) * | 2019-09-05 | 2021-10-15 | 天能电池集团股份有限公司 | Acid circulation formation system for tightly-assembled battery and formation method using same |
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| JP2009146866A (en) * | 2007-12-18 | 2009-07-02 | Toyota Motor Corp | Electrolyte filling device |
| US8286676B2 (en) * | 2008-06-24 | 2012-10-16 | Sovema Usa, Inc. | Plant for electrochemical forming of lead-acid batteries |
| CN103606711A (en) * | 2013-11-29 | 2014-02-26 | 山东圣阳电源股份有限公司 | Storage battery acid circulation adjusting formation method and adjusting system |
| CN104124425A (en) * | 2014-06-16 | 2014-10-29 | 超威电源有限公司 | Acid-adding device and method for accumulator plate |
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