CN109518017A - A kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof - Google Patents
A kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof Download PDFInfo
- Publication number
- CN109518017A CN109518017A CN201811242994.2A CN201811242994A CN109518017A CN 109518017 A CN109518017 A CN 109518017A CN 201811242994 A CN201811242994 A CN 201811242994A CN 109518017 A CN109518017 A CN 109518017A
- Authority
- CN
- China
- Prior art keywords
- parts
- stirring
- battery
- preparation
- battery metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
- C22C11/06—Alloys based on lead with tin as the next major constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/68—Selection of materials for use in lead-acid accumulators
- H01M4/685—Lead alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
- H01M4/84—Multi-step processes for manufacturing carriers for lead-acid accumulators involving casting
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The present invention relates to metal technical field, specially a kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof.The battery metal includes the raw material of following parts by weight: 0.02-0.08 parts of Ca, 1.0-1.5 parts of Sn, 0.005-0.2 parts of Al, 0.002-0.015 parts of Ag, surplus Pb.Battery positive voltage grid metal of the present invention, it is matched by internal reasonable element, make it have very high corrosion resistance, utilize battery made of metal of the present invention, service life improves 35% or more than battery made of common alloy under high temperature environment, the service life of battery under the high temperature conditions is extended, cyclic endurance improves 40% than the life of storage battery made of common Pb-Ca-Sn-Al alloy.
Description
Technical field
The present invention relates to metal technical field, specially a kind of maintenance-free lead accumulator positive plate grid metal
And preparation method thereof.
Background technique
Start type maintenance-free lead accumulator is mainly used for automobile start and mobile unit electricity consumption, has high-performance, without dirt
Dye, non-maintaining, safe and reliable excellent performance, carrier of the grid as plate active material play skeleton and distributed conductive electricity
The effect of stream.
For traditional lead-acid accumulator using lead-antimony alloy as electrode plate grid, lead-antimony alloy has good mechanical property,
With the coefficient of expansion more lower than pure lead, grid made of lead-antimony alloy and active material have good binding force and lower
Sheet resistance is conducive to the depth charge and discharge and preferable cycle life of battery.But the hydrogen-evolution overpotential of lead-antimony alloy is too low, antimony
Addition reduce the decomposition voltage of water, exacerbate battery self discharge, need often to be safeguarded.
The hydrogen-evolution overpotential of lead-calcium alloy improves about (200-250) mV than lead-antimony alloy, is not susceptible to the decomposition of water, subtracts simultaneously
The self discharge of few battery is the main material for producing maintenance-free battery.However, lead-calcium alloy is during service lifetime of accumulator
There are capacitance loss, charge acceptance decline, many large-scale storage battery production producers domestic at present generally use lead calcium tin aluminium
Alloy is for producing battery.
In the use environment of south or tropic countries, because environment temperature is higher, battery is chronically under hot conditions
Work exacerbates electrolyte to the corrosion rate of grid in charge and discharge process, and temperature is every to rise 10 DEG C, and corrosion rate increases by one
Times, burn into fracture can occur too early in anode plate grid made of traditional lead-antimony alloy, lead-calcium alloy, pole plate is grown up, and lead to battery
Service life greatly shortens.
Technical solution
To solve above-mentioned problems of the prior art, the invention discloses a kind of battery metal, particular technique sides
Case is as follows:
A kind of battery metal, the raw material including following parts by weight: 0.02-0.08 parts of Ca, 1.0-1.5 parts of Sn, Al
0.005-0.2 parts, 0.002-0.015 parts of Ag, surplus Pb.
Preferably, the battery metal, the raw material including following parts by weight: 0.04-0.06 parts of Ca, Sn
1.2-1.3 parts, 0.005-0.15 parts of Al, 0.006-0.008 parts of Ag, surplus Pb.
Preferably, the battery metal, the raw material including following parts by weight: 0.05 part of Ca, Sn 1.25
Part, 0.01 part of Al, 0.007 part of Ag, surplus Pb.
The invention also discloses the preparation method of above-mentioned battery metal, specific technical solution is as follows:
A kind of preparation method of battery metal, comprises the following steps that: electrolytic lead melts → plus silver-colored → plus aluminium → drop
Temperature plus calcium → cooling adds tin → stir → cast lead.
Preferably, the preparation method of the battery metal the specific process steps are as follows: electrolytic lead is added
Enter in market pot and melted, open agitating device, the silver and aluminium of formula ratio is slowly added into the whirlpool of stirring, adition process
Middle stirring 2-8min stops stirring after silver melts completely with aluminium；Cooling is then turned on agitating device and starts to add calcium, will be formulated
The calcium of amount is slowly added into the whirlpool of stirring, is stopped after stirring 2-8min；Cooling opens agitating device and starts to add tin, will be formulated
The tin of amount is slowly added into the whirlpool of stirring, is stirred sampling and testing after 2-8min, is poured lead after qualified.
Preferably, the silver and aluminium of formula ratio are added after temperature is promoted to 660-680 DEG C.
Preferably, the calcium of formula ratio is slowly added into stirring when temperature is down to 530-570 DEG C.
Preferably, the tin of formula ratio is slowly added into stirring when temperature is down to 450-480 DEG C.
Preferably, the speed-frequency of adjustment blender will be formulated after forming 1 meter or so of vortex among market pot
Each component is put into whirlpool by tool, to guarantee the uniformity of its stirring and dissolving and reduce the scaling loss of calcium.
Beneficial effect
Battery positive voltage grid metal of the present invention is matched by internal reasonable element, is made it have very high
Corrosion resistance fundamentally solves the problems, such as the not corrosion resistant in a high temperauture environment of anode plate grid made of Pb-Ca-Sn-Al alloy, mentions
The high service life of battery.Using battery made of metal of the present invention, service life under high temperature environment
35% or more is improved than battery made of common alloy, extends the service life of battery under the high temperature conditions, cycling durable
Ability improves 40% than the life of storage battery made of common Pb-Ca-Sn-Al alloy.
In battery positive voltage grid metal of the present invention, the addition of calcium improves the hydrogen-evolution overpotential of grid, no
The decomposition of water easily occurs, while reducing the self discharge of battery.The addition of tin can improve the mobility of lead-calcium alloy, make grid table
Face forms the PbOn layer with conductive capability, improves anode plate charge acceptance, it is suppressed that lead-calcium alloy and lead antimony
The problem of thermal inactivation of the appearance of alloy improves the corrosion resistance of grid, can improve battery premature capacity loss, prolongs
Battery life is grown.The scaling loss that the effect of aluminium predominantly reduces calcium has the function of nucleating agent.The addition of silver further improves
The mechanical property of Pb-Ca-Sn-Al alloy, improves the corrosion resistance of grid, and battery has longer cycle life, especially exists
It is become apparent under hot environment.
Novel alloy formula using alloy configure system, at different temperature, will be sequentially added in lead liquid aluminium, silver, calcium,
Tin carries out analysis test by spectrometer after stirring, production of the lead for accumulator grid is cast after qualified.
Specific embodiment
Embodiment 1
A kind of battery metal, the raw material including following parts by weight: Ca0.06 parts, 1.2 parts of Sn, 0.15 part of Al, Ag
0.006 part, surplus Pb.
Above-mentioned battery is prepared with metal by following methods: electrolytic lead being added in market pot and is melted, temperature is worked as
Agitating device is opened after being promoted to 660 DEG C, adjusts the speed-frequency of blender, forms 1 meter or so of vortex among market pot
Afterwards, the silver and aluminium of formula ratio are slowly added into the whirlpool of stirring, 8min is stirred in adition process, after silver melts completely with aluminium
Stop stirring；When temperature is down to 530 DEG C, unlatching agitating device adjusts the speed-frequency of blender, forms 1 among market pot
After the vortex of rice or so, starts to add calcium, the calcium of formula ratio is slowly added into the whirlpool of stirring, stop after stirring 5min；Work as temperature
Degree is down to 450 DEG C, opens agitating device, adjusts the speed-frequency of blender, and 1 meter or so of vortex is formed among market pot
Afterwards, start to add tin, the tin of formula ratio is slowly added into the whirlpool of stirring, stir sampling and testing after 5min, be poured lead after qualified
Block.
Life test is carried out to battery made of above-mentioned metal to follow using standard GB/T 5008.1-2013 standard
Ring endurance improves 40% than the life of storage battery made of common Pb-Ca-Sn-Al alloy, and service life is than general under high temperature environment
Battery made of logical alloy improves 35% or more, extends the service life of battery under the high temperature conditions.
Embodiment 2
A kind of battery metal, the raw material including following parts by weight: 0.04 part of Ca, Sn1.3 parts, 0.005 part of Al, Ag
0.008 part, surplus Pb.
Above-mentioned battery is prepared with metal by following methods: electrolytic lead being added in market pot and is melted, temperature is worked as
Agitating device is opened after being promoted to 680 DEG C, adjusts the speed-frequency of blender, forms 1 meter or so of vortex among market pot
Afterwards, the silver and aluminium of formula ratio are slowly added into the whirlpool of stirring, 2min is stirred in adition process, after silver melts completely with aluminium
Stop stirring；When temperature is down to 570 DEG C, unlatching agitating device adjusts the speed-frequency of blender, forms 1 among market pot
After the vortex of rice or so, starts to add calcium, the calcium of formula ratio is slowly added into the whirlpool of stirring, stop after stirring 8min；Work as temperature
Degree is down to 480 DEG C, opens agitating device, adjusts the speed-frequency of blender, and 1 meter or so of vortex is formed among market pot
Afterwards, start to add tin, the tin of formula ratio is slowly added into the whirlpool of stirring, stir sampling and testing after 8min, be poured lead after qualified
Block.
Life test is carried out to battery made of above-mentioned metal to follow using standard GB/T 5008.1-2013 standard
Ring endurance improves 40% than the life of storage battery made of common Pb-Ca-Sn-Al alloy, and service life is than general under high temperature environment
Battery made of logical alloy improves 35% or more, extends the service life of battery under the high temperature conditions.
Embodiment 3
A kind of battery metal, the raw material including following parts by weight: 0.05 part of Ca, 1.25 parts of Sn, 0.01 part of Al, Ag
0.007 part, surplus Pb.
Above-mentioned battery is prepared with metal by following methods: electrolytic lead being added in market pot and is melted, temperature is worked as
Agitating device is opened after being promoted to 670 DEG C, adjusts the speed-frequency of blender, forms 1 meter or so of vortex among market pot
Afterwards, the silver and aluminium of formula ratio are slowly added into the whirlpool of stirring, 5min is stirred in adition process, after silver melts completely with aluminium
Stop stirring；When temperature is down to 550 DEG C, unlatching agitating device adjusts the speed-frequency of blender, forms 1 among market pot
After the vortex of rice or so, starts to add calcium, the calcium of formula ratio is slowly added into the whirlpool of stirring, stop after stirring 2min；Work as temperature
Degree is down to 460 DEG C, opens agitating device, adjusts the speed-frequency of blender, and 1 meter or so of vortex is formed among market pot
Afterwards, start to add tin, the tin of formula ratio is slowly added into the whirlpool of stirring, stir sampling and testing after 5min, be poured lead after qualified
Block.
Life test is carried out to battery made of above-mentioned metal to follow using standard GB/T 5008.1-2013 standard
Ring endurance improves 40% than the life of storage battery made of common Pb-Ca-Sn-Al alloy, and service life is than general under high temperature environment
Battery made of logical alloy improves 35% or more, extends the service life of battery under the high temperature conditions.
Claims (9)
1. a kind of battery metal, which is characterized in that the raw material including following parts by weight: 0.02-0.08 parts of Ca, Sn
1.0-1.5 parts, 0.005-0.2 parts of Al, 0.002-0.015 parts of Ag, surplus Pb.
2. battery metal according to claim 1, which is characterized in that the raw material including following parts by weight: Ca
0.04-0.06 parts, 1.2-1.3 parts of Sn, 0.005-0.15 parts of Al, 0.006-0.008 parts of Ag, surplus Pb.
3. battery metal according to claim 1, which is characterized in that the raw material including following parts by weight: Ca
0.05 part, 1.25 parts of Sn, 0.01 part of Al, 0.007 part of Ag, surplus Pb.
4. the preparation method of battery metal a method according to any one of claims 1-3, which is characterized in that including following technique
Step: electrolytic lead, which melts → add silver → plus aluminium → cooling adds calcium → cooling adds tin → to stir →, casts lead.
5. the preparation method of battery metal according to claim 4, which is characterized in that specific process step is such as
Under: electrolytic lead is added in market pot and is melted, agitating device is opened, the silver and aluminium of formula ratio are slowly added into the whirlpool of stirring
In whirlpool, 2-8min is stirred in adition process, stops stirring after silver melts completely with aluminium；Cooling, is then turned on agitating device and opens
Begin to add calcium, the calcium of formula ratio is slowly added into the whirlpool of stirring, stops after stirring 2-8min；Cooling is opened agitating device and is opened
Begin to add tin, the tin of formula ratio is slowly added into the whirlpool of stirring, stirs sampling and testing after 2-8min, be poured lead after qualified.
6. the preparation method of battery metal according to claim 5, which is characterized in that when temperature is promoted to 660-
After 680 DEG C, the silver and aluminium of formula ratio are added.
7. the preparation method of battery metal according to claim 5, which is characterized in that when temperature is down to 530-
At 570 DEG C, the calcium of formula ratio is slowly added into stirring.
8. the preparation method of battery metal according to claim 5, which is characterized in that when temperature is down to 450-
At 480 DEG C, the tin of formula ratio is slowly added into stirring.
9. the preparation method of battery metal according to claim 5, which is characterized in that adjust the revolving speed of blender
Frequency after forming 1 meter or so of vortex among market pot, formula each component is put into whirlpool by tool, to guarantee it
The uniformity of stirring and dissolving and the scaling loss for reducing calcium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242994.2A CN109518017A (en) | 2018-10-24 | 2018-10-24 | A kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242994.2A CN109518017A (en) | 2018-10-24 | 2018-10-24 | A kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109518017A true CN109518017A (en) | 2019-03-26 |
Family
ID=65772982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811242994.2A Pending CN109518017A (en) | 2018-10-24 | 2018-10-24 | A kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109518017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115772614A (en) * | 2022-11-01 | 2023-03-10 | 天能集团贵州能源科技有限公司 | Storage battery positive grid alloy and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294418A (en) * | 1999-10-23 | 2001-05-09 | 杭州南都电源有限公司 | Alloy material for lattice plate of deeply cyclic battery |
| US20010009743A1 (en) * | 2000-01-19 | 2001-07-26 | Prengaman R. David | Alloy for thin positive grid for lead acid batteries and method for manufacture of grid |
| CN1308688A (en) * | 1998-06-26 | 2001-08-15 | 约翰逊控制技术公司 | Alloy for battery grids |
| JP2002194463A (en) * | 2000-12-26 | 2002-07-10 | Furukawa Battery Co Ltd:The | Lead based alloy for lead storage battery |
| CN101859901A (en) * | 2010-06-10 | 2010-10-13 | 赵恒祥 | Lead alloy composition for positive plate of lead acid storage battery and preparation method thereof |
| CN101924218A (en) * | 2010-09-08 | 2010-12-22 | 江苏理士电池有限公司 | Process for manufacturing lead-acid battery grid |
| CN102437342A (en) * | 2011-11-30 | 2012-05-02 | 江苏双登集团有限公司 | Positive grid alloy of lead-acid storage battery for energy storage |
| CN103199263A (en) * | 2013-03-27 | 2013-07-10 | 奇瑞汽车股份有限公司 | Positive grid alloy of lead-acid battery and manufacturing method of alloy |
| CN105280927A (en) * | 2015-10-29 | 2016-01-27 | 界首市南都华宇电源有限公司 | Casting process of plate grid of lead-acid storage battery |
| CN106636737A (en) * | 2016-12-21 | 2017-05-10 | 河南超威电源有限公司 | Power type lead accumulator positive grid alloy and preparation method thereof |
-
2018
- 2018-10-24 CN CN201811242994.2A patent/CN109518017A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308688A (en) * | 1998-06-26 | 2001-08-15 | 约翰逊控制技术公司 | Alloy for battery grids |
| CN1294418A (en) * | 1999-10-23 | 2001-05-09 | 杭州南都电源有限公司 | Alloy material for lattice plate of deeply cyclic battery |
| US20010009743A1 (en) * | 2000-01-19 | 2001-07-26 | Prengaman R. David | Alloy for thin positive grid for lead acid batteries and method for manufacture of grid |
| JP2002194463A (en) * | 2000-12-26 | 2002-07-10 | Furukawa Battery Co Ltd:The | Lead based alloy for lead storage battery |
| CN101859901A (en) * | 2010-06-10 | 2010-10-13 | 赵恒祥 | Lead alloy composition for positive plate of lead acid storage battery and preparation method thereof |
| CN101924218A (en) * | 2010-09-08 | 2010-12-22 | 江苏理士电池有限公司 | Process for manufacturing lead-acid battery grid |
| CN102437342A (en) * | 2011-11-30 | 2012-05-02 | 江苏双登集团有限公司 | Positive grid alloy of lead-acid storage battery for energy storage |
| CN103199263A (en) * | 2013-03-27 | 2013-07-10 | 奇瑞汽车股份有限公司 | Positive grid alloy of lead-acid battery and manufacturing method of alloy |
| CN105280927A (en) * | 2015-10-29 | 2016-01-27 | 界首市南都华宇电源有限公司 | Casting process of plate grid of lead-acid storage battery |
| CN106636737A (en) * | 2016-12-21 | 2017-05-10 | 河南超威电源有限公司 | Power type lead accumulator positive grid alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 沃丁柱: "《复合材料大全》", 31 January 2002, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115772614A (en) * | 2022-11-01 | 2023-03-10 | 天能集团贵州能源科技有限公司 | Storage battery positive grid alloy and preparation method thereof |
| CN115772614B (en) * | 2022-11-01 | 2024-03-29 | 天能集团贵州能源科技有限公司 | Positive grid alloy of storage battery and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Advances and challenges in improvement of the electrochemical performance for lead-acid batteries: a comprehensive review | |
| CN103337613B (en) | A kind of Si-C composite material and preparation method thereof, lithium ion battery | |
| CN104835965B (en) | A kind of motorcycle lead carbon battery and preparation method thereof | |
| CN108258241B (en) | A Lithium Battery Anode Using ZIF-8 Porous Carbon Materials to Inhibit Lithium Dendritic Growth | |
| CN107482209B (en) | A cathode material for liquid and semi-liquid metal batteries | |
| CN107221677A (en) | A kind of liquid metal cell of high-energy-density | |
| CN106784688A (en) | Preparation and application of a Zn-C secondary battery composite material | |
| CN104009235A (en) | Preparation method of porous silicon/graphene composite material | |
| CN111599991A (en) | Maintenance-free starting lead-acid storage battery with long service life and high specific energy and production method thereof | |
| CN104993154A (en) | Graphene-containing lead alloy for lead storage battery grids, and preparation method thereof | |
| CN107146890B (en) | High temperature modification valve-regulated lead-acid battery and preparation method thereof | |
| CN106129348A (en) | A kind of Al2o3nickel lithium manganate cathode material of coating modification and preparation method thereof | |
| CN112952211A (en) | Liquid metal battery and preparation method thereof | |
| CN113336277A (en) | Method for preparing novel potassium ion battery anode material by two-step potassium supplement | |
| CN102205412A (en) | Method of Fluorination Treatment Modification of MlNi3.5Co0.6Mn0.4Al0.5 Hydrogen Storage Alloy | |
| CN109518017A (en) | A kind of maintenance-free lead accumulator positive plate grid metal and preparation method thereof | |
| CN113809317B (en) | Positive electrode material of liquid or semi-liquid metal battery and application thereof | |
| CN101950806A (en) | Anode material capable of being used for lithium-iodine cell and preparation method thereof | |
| CN107732251B (en) | controllable preparation method of anticorrosive modified coating of lead-carbon battery positive grid | |
| CN104226985B (en) | A kind of AB 3the nickel plating method of modifying of type hydrogen storage alloy | |
| CN105024083A (en) | Manufacturing method of lead-carbon positive grid for lead-acid storage battery | |
| CN102709528A (en) | Method for preparing positive plate of lead-acid storage battery | |
| CN113471447B (en) | Grid alloy for lead storage battery and preparation process thereof | |
| CN101245423A (en) | Application and production process of a kind of lead alloy and lead alloy | |
| CN105280963B (en) | The method and its lead-acid accumulator of a kind of lead-acid accumulator anacidity tank formation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |
|
| RJ01 | Rejection of invention patent application after publication |