CN109072449A - The outer canister of battery outer cylinder steel plate for tanks, battery and battery - Google Patents
The outer canister of battery outer cylinder steel plate for tanks, battery and battery Download PDFInfo
- Publication number
- CN109072449A CN109072449A CN201780027816.5A CN201780027816A CN109072449A CN 109072449 A CN109072449 A CN 109072449A CN 201780027816 A CN201780027816 A CN 201780027816A CN 109072449 A CN109072449 A CN 109072449A
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- battery
- steel plate
- diffusion layer
- tanks
- canister
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 130
- 239000010959 steel Substances 0.000 title claims abstract description 130
- 239000010410 layer Substances 0.000 claims abstract description 111
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract description 88
- 238000009792 diffusion process Methods 0.000 claims abstract description 88
- 239000002344 surface layer Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 abstract description 41
- 238000000034 method Methods 0.000 abstract description 25
- 238000005260 corrosion Methods 0.000 abstract description 24
- 230000007797 corrosion Effects 0.000 abstract description 22
- 238000000465 moulding Methods 0.000 abstract description 22
- 229910000760 Hardened steel Inorganic materials 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000012360 testing method Methods 0.000 description 13
- 238000000137 annealing Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000005097 cold rolling Methods 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 238000011088 calibration curve Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000004876 x-ray fluorescence Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910018493 Ni—K Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 2
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention provides a kind of battery outer cylinder steel plate for tanks and has used the outer canister of the battery of the battery outer cylinder steel plate for tanks and battery, the battery outer cylinder steel plate for tanks uses in rear plating method, remain to inhibit the generation of scratch, and the corrosion resistance excellent of the outer canister of obtained battery in the case where punch forming is repeated even with the molding die made of hardened steel.The surface layer on two sides of the above-mentioned battery outer cylinder steel plate for tanks in steel plate has Fe-Ni diffusion layer, and above-mentioned Fe-Ni diffusion layer is 50mg/m in the adhesion amount in terms of Ni conversion of every one side of above-mentioned steel plate2~500mg/m2。
Description
Technical field
The present invention relates to canister and batteries outside battery outer cylinder steel plate for tanks, battery.
Background technique
As battery, for example, it has been known that there is one-shot batteries such as alkaline Mn cells, be equipped on laptop or hybrid power vapour
Secondary cells such as the lithium ion battery of vehicle etc. etc..
From the viewpoint of corrosion resistance, in the table for constituting the steel plate of outer canister (the outer canister of battery) used in these batteries
Implement plating Ni to form Ni layers in face.
According to the difference for implementing the step of plating Ni, the outer canister of battery has 2 kinds of manufacturing methods.
One is first plating method, the steel plate punched for implementing to plate Ni is molded into canister outside battery, then without plating at
Reason.Another kind is rear plating method, and plating Ni is implemented using gimmicks such as barrel platings in the surface of canister outside the battery after punch forming.
A kind of " container plating is disclosed as battery outer cylinder steel plate for tanks used in rear plating method, such as in patent document 1
Ni steel plate, which is characterized in that there is 0.5 μm~4 μm of thickness of Fe- on the face for becoming inner surface of container using punch forming
Ni diffusion layer further has attachment with 0.25 μm~4 μm of thickness of Ni layer on it on the face for becoming container outer surface
Measure 0.05g/m2More than and less than 1.5g/m2Ni, which internally spreads, Ni/ (Fe+Ni) mass ratio on surface layer is 0.1~
0.9 " (claim 1).
It in patent document 1, is that such battery outer cylinder steel plate for tanks (container plating Ni steel plate) is subjected to punch forming
And after becoming the outer canister of battery, implement plating Ni in its outer surface using gimmicks such as barrel platings.
Existing technical literature
Patent document
Patent document 1: No. 4995140 bulletins of Japanese Patent Publication No.
Summary of the invention
The material of molding die used in punch forming as rear plating method (mold), mostly uses greatly superhard alloy,
The case where having using more crisp hardened steel.
The battery outer cylinder steel plate for tanks (container of patent document 1 is repeated using the molding die made of hardened steel
With plating Ni steel plate) punch forming when, molding die is gradually scraped off, and as a result may make the outer canister steel of the molding battery of institute
Plate generates scratch.Under such circumstances, the outer canister of obtained battery is because of the risk for having scratch, and having corrosion resistance to be deteriorated.
Therefore, the purpose of the present invention is to provide a kind of battery outer cylinder steel plate for tanks and canister steel outside the battery is used
The outer canister of the battery of plate and battery, which uses in rear plating method, even with made of hardened steel
Molding die remains to inhibit the generation of scratch in the case where punch forming is repeated, and the outer canister of obtained battery is anti-corrosion
Property is excellent.
The inventors of the present invention's further investigated as a result, it has been found that, by using the surface layer on the two sides of steel plate have specific Fe-
The battery outer cylinder steel plate for tanks of Ni diffusion layer may achieve above-mentioned purpose, so as to complete the present invention.
That is, the present invention is to provide following [1]~[8].
[1] a kind of battery outer cylinder steel plate for tanks has Fe-Ni diffusion layer on the surface layer on the two sides of steel plate, and above-mentioned Fe-Ni expands
The adhesion amount in terms of Ni conversion for dissipating layer in every one side of above-mentioned steel plate is 50mg/m2~500mg/m2。
[2] the battery outer cylinder steel plate for tanks as described in above-mentioned [1], wherein in the Ni of the most surface of above-mentioned Fe-Ni diffusion layer
Ratio is 1.0% more than and less than 20.0%.Wherein, above-mentioned Ni ratio be above-mentioned Fe-Ni diffusion layer most surface it is above-mentioned
The unit of ratio of the Ni amount relative to Fe amount and the total amount of Ni amount, above-mentioned Fe amount and above-mentioned Ni amount is atom %.
[3] the battery outer cylinder steel plate for tanks as described in above-mentioned [1] or [2], wherein above-mentioned Fe-Ni diffusion layer with a thickness of
0.01 μm more than and less than 0.5 μm.
[4] the outer canister of a kind of battery, the surface layer of the inner surface and the outer surface of the steel plate of canister shape has Fe- outside battery
Ni diffusion layer further has Ni layers, the exterior side of above-mentioned steel plate on the above-mentioned Fe-Ni diffusion layer of the exterior side of above-mentioned steel plate
Above-mentioned Fe-Ni diffusion layer a part be above-mentioned steel plate every one side by Ni conversion in terms of adhesion amount for 50mg/m2~
500mg/m2Fe-Ni diffusion layer A.
[5] the outer canister of the battery as described in above-mentioned [4], wherein in the Ni ratio of the most surface of above-mentioned Fe-Ni diffusion layer A
For 1.0% more than and less than 20.0%.Above-mentioned Ni ratio be the most surface of above-mentioned Fe-Ni diffusion layer above-mentioned Ni amount relative to
The unit of the ratio of the total amount of Fe amount and Ni amount, above-mentioned Fe amount and above-mentioned Ni amount is atom %.
[6] the outer canister of the battery as described in above-mentioned [4] or [5], wherein above-mentioned Fe-Ni diffusion layer A with a thickness of 0.01 μm
More than and less than 0.5 μm.
[7] the outer canister of the battery as described in any in above-mentioned [4]~[6], wherein above-mentioned Ni layers with a thickness of 1 μm or more.
[8] a kind of battery has the outer canister of the battery as described in any in above-mentioned [4]~[7], is configured at outside above-mentioned battery
Electrolyte, electrode and the separator of the inside of canister.
In accordance with the invention it is possible to provide a kind of battery outer cylinder steel plate for tanks and used the battery outer cylinder steel plate for tanks
The outer canister of battery and battery, the battery outer cylinder steel plate for tanks use in rear plating method, form even with made of hardened steel
Mold remains to inhibit the generation of scratch in the case where punch forming is repeated, and the corrosion resistance of the outer canister of obtained battery is excellent
It is different.
Specific embodiment
[battery outer cylinder steel plate for tanks]
Battery outer cylinder steel plate for tanks (hereinafter also referred to as " steel plate for tanks of the invention ") of the invention is the two of steel plate
The surface layer in face has Fe-Ni diffusion layer, adhesion amount by Ni conversion in terms of of the above-mentioned Fe-Ni diffusion layer in every one side of above-mentioned steel plate
(hereinafter also referred to " Ni adhesion amount ") is 50mg/m2~500mg/m2。
Steel plate for tanks of the invention is battery outer cylinder steel plate for tanks used in rear plating method, is made even with by hardened steel
Molding die punch forming is repeated in the case where remain to inhibit the generation of scratch, and the outer canister of obtained battery is resistance to
Corrosion is excellent.
Its reason can be presumed as follows.
Firstly, the battery outer cylinder steel plate for tanks used in rear plating method recorded in patent document 1, which has, " is utilizing punching press
The Fe-Ni diffusion layer being molded on the face for inner surface of container with 0.5 μm of thickness or more ... ".The Fe-Ni diffusion layer
Result of the Ni adhesion amount through converting is 4500mg/m2More than.
The battery outer cylinder steel plate for tanks of such patent document 1 is hardened because the Ni adhesion amount of Fe-Ni diffusion layer is excessive,
The molding die made of more crisp hardened steel can be gradually scratched during punch forming is repeated.Moreover, therefore
Molding die in spite of wound has been used, the molding battery outer cylinder steel plate for tanks of institute can be made to generate scratch.
However, the Fe-Ni diffusion layer of steel plate for tanks of the invention, Ni adhesion amount is moderately down to 500mg/m2Hereinafter,
Soften into the degree for not causing the molding die made of hardened steel to scratch.Therefore, it can inhibit the outer canister of the molding battery of institute to use
Steel plate generates scratch (hereinafter also referred to " scratch resistance is excellent ").Moreover, steel plate for tanks of the invention is such due to scratch resistance
It is excellent, so the corrosion resistance of the outer canister of obtained battery is also excellent.
In the case that the Ni adhesion amount of the Fe-Ni diffusion layer of steel plate for tanks of the invention is very few, obtained battery outer cylinder
The corrosion resistance of tank has the risk of variation.However, steel plate for tanks of the invention, because the Ni adhesion amount of Fe-Ni diffusion layer is moderately
Up to 50mg/m2More than, the corrosion resistance (hereinafter also referred to as " corrosion resistance ") when canister outside battery is made becomes good.
More specifically, when canister outside battery is made, in its inner surface, because Fe-Ni diffusion layer is electrochemically stable
Property is good, with the case where Fe-Ni diffusion layer is not present or compared with situation that Fe-Ni diffusion layer is very few, for the corrosion resistance of content
It improves.
On the other hand, in its outer surface, though Ni is plated using implementations such as barrel platings to form Ni layers, at the Ni layers after shaping
There are several pin holes, corrosion can be in progress from there.However, Fe-Ni diffusion layer is moderately arranged in the substrate series of strata as Ni layers,
With the case where Fe-Ni diffusion layer is not present or compared with very few situation, the potential difference of Ni layers with basal layer can be reduced, and is made anti-corrosion
Property improve.
Hereinafter, each position that steel plate for tanks of the invention has is described in detail.
<steel plate>
There is no particular limitation for the type of steel plate.Can be used usually as steel plate used in battery case material (for example,
Low carbon steel plate or ultra-low carbon steel plate).But it may make hardening of steel containing Cr in steel plate and reduce mouldability, or in annealing in steel
The surface of plate forms Cr oxide, and is unable to get desired surface state.Therefore, the Cr content of steel plate is preferably smaller than 3 matter
Measure %, more preferably less than 1 mass %.
Also there is no particular limitation for the manufacturing method of steel plate.For example, can from common steel disc manufacturing step, by hot rolling,
Pickling, cold rolling, annealing, skin-pass and etc. and manufactured.
In the present invention, because the formation of Fe-Ni diffusion layer be it is necessary, it is real to the unannealed steel plate after cold rolling
Plating Ni, making to plate Ni and be diffused into inside steel plate while the annealing of steel plate is the full blast in terms of production.Therefore,
As steel plate, it is preferable to use unannealed steel plate after cold rolling.
<Fe-Ni diffusion layer>
Steel plate for tanks of the invention is that have Fe-Ni diffusion layer on the surface layer on the two sides of steel plate.
" Ni adhesion amount "
Fe-Ni diffusion layer steel plate every one side by Ni conversion in terms of adhesion amount (Ni adhesion amount) be 50mg/m2~
500mg/m2.In this way, steel plate for tanks of the invention scratch resistance as described above and corrosion resistance are excellent.It is more excellent based on scratch resistance
Different reason, the preferred 350mg/m of Ni adhesion amount of Fe-Ni diffusion layer2Hereinafter, more preferable 300mg/m2Below.
The Ni adhesion amount of Fe-Ni diffusion layer can carry out surface analysis using x-ray fluorescence analysis to measure.At this point, using
Ni known to Ni adhesion amount adheres to sample, and calibration curve related with Ni adhesion amount is determined in advance, the calibration curve is recycled to ask
Opposite Ni adhesion amount out.X-ray fluorescence analysis is for example implemented by following conditions.
Device: the fluorescent x-ray analyzer System3270 of corporation of science
Measure diameter: 30mm
Measure atmosphere: vacuum
Spectrum: Ni-K α
Slit: COARSE
Analyzing crystal: TAP
Use the peak counting of the Ni-K α of the x-ray fluorescence analysis of the Fe-Ni diffusion layer by above-mentioned condition measurement.It uses
It is bent to obtain correction related with Ni adhesion amount in advance for standard sample known to the adhesion amount as obtained by gravimetric detemination adhesion amount
Line finds out opposite Ni adhesion amount using the calibration curve.
" thickness "
In steel plate for tanks of the invention, the thickness of Fe-Ni diffusion layer is expanded based on maintenance Fe-Ni is still easy after shaping
Dissipating layer and makes scratch resistance and the more excellent reason of corrosion resistance, preferably 0.01 μm more than and less than 0.5 μm, based on making damage resistant
The more excellent reason of property, more preferable 0.4 μm hereinafter, further preferred 0.38 μm or less.
The thickness of Fe-Ni diffusion layer can be measured using GDS (glow discharge emission analysis).Specifically, firstly, from
The inside of the surface of Fe-Ni diffusion layer towards steel plate is sputtered, and the analysis of depth direction is carried out, and finding out Ni intensity becomes maximum
1/10 sputtering time of value.Then, the relationship of sputter depth and sputtering time is found out using GDS using pure iron.Utilize the pass
System calculates sputter depth in terms of pure iron conversion according to 1/10 sputtering time that the Ni intensity previously found out becomes maximum value,
Use calculated value as the thickness of Fe-Ni diffusion layer.GDS is to implement under the following conditions.
Device: corporation GDA750 of science
Anode internal diameter: 4mm
Analytical model: high frequency low voltage mode
Discharge power: 40W
Control pressure: 2.9hPa
Detector: photomultiplier tube
Detection wavelength: Ni=341.4nm
" Ni ratio "
In steel plate for tanks of the invention, in Ni ratio (hereinafter also referred to as " the Ni ratio of the most surface of Fe-Ni diffusion layer
Rate "), it is based on scratch resistance and the more excellent reason of corrosion resistance, preferably 1.0% more than and less than 20.0%.
The reason that the Ni ratio of the most surface of Fe-Ni diffusion layer is critically important is, though the Ni of the most surface of Fe-Ni diffusion layer
The corrosion resistance improvement effect for the Ni for having direct effect for corrosion resistance, but being diffused into steel is smaller.On the other hand, when Ni ratio mistake
Gao Shi, most surface are hardened, and scratch resistance is made to become insufficient sometimes.Therefore, the proper range of Ni ratio is above-mentioned 1.0% or more
And less than 20.0%.
Based on the more excellent reason of scratch resistance, the lower limit of Ni ratio more preferable 3.0%.For the same reason, Ni
The upper limit of ratio more preferable 15.0%, further preferably 13.0%.
It is the most surface in Fe-Ni diffusion layer, Ni amount phase in the Ni ratio (unit: %) of the most surface of Fe-Ni diffusion layer
For the ratio of the total amount of Fe amount and Ni amount, i.e., calculated by formula " Ni amount/(Fe amount+Ni amount) × 100 ".Fe amount and Ni amount
Unit is atom %.
The Fe amount (unit: atom %) and Ni amount (unit: atom %) of the most surface of Fe-Ni diffusion layer can pass through by
Form Fe-Ni diffusion layer steel plate carry out 10 minutes ultrasonic wave cleanings in acetone after, without sputtering, carry out auger electrons
Power spectrum is measured and is measured.Auger electron spectroscopy measurement is that the different visuals field in same sample carry out measurement, Fe amount and Ni at 10
Amount is the average value for using measurement result at 10 respectively.Auger electron spectroscopy measurement is implemented under the following conditions.
Device: ULVAC-PHI corporation PHI660
Observation and analysis condition: acceleration voltage 10.0kV, 0.5 μ A of current value
Observe 1,000 times of multiplying power, 540~900eV of measurement range
" forming method of Fe-Ni diffusion layer "
In the method that the surface layer on the two sides of steel plate forms Fe-Ni diffusion layer, there is no particular limitation, can enumerate as an example
The following method.
Firstly, after carrying out pre-treatment (degreasing and pickling etc.) as needed, using plating to the unannealed steel plate after cold rolling
Ni bath, suitably adjusts the conditions such as current density and implements to plate Ni.As plating Ni bath, such as watt bath (Watts can be enumerated
Bath), sulfamic acid bath, boron fluoride bath and chloride bath etc..
At this moment, the adhesion amount for plating Ni is 50mg/m in every one side of steel plate2~500mg/m2.In this way, can make to be formed by
The Ni adhesion amount of Fe-Ni diffusion layer becomes 50mg/m2~500mg/m2。
Then, the steel plate after Ni is plated for implementation, the annealing carried out for the purpose of the processing of the recrystallization of steel plate is (preferably continuous
Annealing).As a result, with the annealing of steel plate, makes to plate Ni to spreading inside steel plate and form Fe-Ni diffusion layer.
As annealing conditions, preferably 600 DEG C~800 DEG C of soaking temperature, the retention time at the soaking temperature preferably 10
Second~60 seconds.Retention time under soaking temperature is shorter, and Ni is less susceptible to be diffused into steel, and becomes the Ni ratio of most surface
Greatly, from the viewpoint of corrosion resistance, the more preferably less than 30 seconds retention time under soaking temperature.
If it is the annealing conditions, for being formed by Fe-Ni diffusion layer, it can be made with a thickness of 0.01 μm or more and
Less than 0.5 μm, and make in the Ni ratio 1.0% of most surface more than and less than 20.0%, therefore preferably.
It after forming Fe-Ni diffusion layer, can according to need, carry out shape correction and table by implementing skin-pass
Surface roughness adjustment etc..
[manufacturing method of the outer canister of battery]
Next, to the manufacturing method of canister outside the battery for using steel plate for tanks of the invention (hereinafter, for convenience also referred to as
For " the manufacturing method of the present invention ") it explains.
The manufacturing method of the present invention is can for example to enumerate the method for having following process: steel plate for tanks of the invention is passed through
The process of canister shape outside battery (for example, cylindric) is shaped to using the punch forming of molding die；And then, exist
Implement plating Ni and form Ni layers in the outer surface of the molded steel plate for tanks of the invention for the outer canister shape of battery.
<molding (punch forming)>
There is no particular limitation for the method for molding (punch forming), general used by the molding using canister outside battery
Method carries out.For example, steel plate for tanks of the invention is punched into circle, drawing (drawing and is drawn at cup-shaped, through re-drawing and DI
Contracting, Drawing and Ironing) process is shaped to the shapes such as cylindrical shape.
At this moment, the material as used molding die uses superhard alloy mostly, but also can be used more crisp hard
Change steel.As described above, it is believed that the Fe-Ni diffusion layer of steel plate for tanks of the invention will not make the molding die made of hardened steel
It scratches, therefore can inhibit the molding battery outer cylinder steel plate for tanks of institute and generate scratch.
Receive stamping forming Fe-Ni diffusion layer Ni adhesion amount, thickness and Ni ratio be unable to maintain that punch forming before
State and can change.
However, becoming at least part (example of the part of the exterior side of the outer canister of battery in steel plate for tanks of the invention
Such as, become the part of the end face of the protrusion of the side of the positive electrode of the outer canister of battery) not being stamped forms and maintains without machining state.
Therefore, the exterior side of canister (canister outside battery of the invention) outside the battery obtained using steel plate for tanks of the invention
At least part maintain the Ni adhesion amount of Fe-Ni diffusion layer of the steel plate for tanks of the invention before punch forming, thickness as former state
Degree and Ni ratio.
<the plating Ni after being shaped to the outer canister shape of battery>
There is no particular limitation for the method for implementation plating Ni, and known method can be used.For example, for molded for electricity
The steel plate for tanks of the invention of canister shape outside pond is bathed using plating Ni, suitably adjusts the conditions such as current density, utilize tumble-plating process
Implement plating Ni.As plating Ni bath, such as watt bath, sulfamic acid bath, boron fluoride bath and chloride bath can be enumerated etc..
Expand as a result, in the molded Fe-Ni for at least exterior side of the steel plate for tanks of the invention of canister shape outside battery
It dissipates and implements plating Ni on layer and form Ni layers.
At this moment, because being shaped to the outer canister shape of battery, plating Ni is not easy to invade inside it steel plate for tanks of the invention, because
The inner surface of the steel plate for tanks of the invention of this canister shape outside battery is not easy to implement plating Ni.Certainly, the outer canister shape of battery
The inner surface of the steel plate for tanks of the invention of shape can also be implemented to plate Ni and form Ni layers in the same manner as outer surface.
The thickness of plating Ni (Ni layers) is formed by Fe-Ni diffusion layer, from the viewpoint of corrosion resistance, preferably 1 μm or more,
More preferable 2 μm or more.There is no particular limitation for the upper limit of Ni layers of thickness, such as from the viewpoint of economy, preferably 7 μm with
Under.
[the outer canister of battery]
The outer canister of battery of the invention is using canister outside the obtained battery of steel plate for tanks of the invention.
More specifically, outer canister the inner surface and the outer surface of the steel plate of canister shape outside battery of battery of the invention
Surface layer has Fe-Ni diffusion layer, above-mentioned further with Ni layers on the above-mentioned Fe-Ni diffusion layer of the exterior side of above-mentioned steel plate
Above-mentioned Fe-Ni diffusion layer a part of the exterior side of steel plate is that the adhesion amount in terms of Ni conversion of every one side of above-mentioned steel plate is
50mg/m2~500mg/m2Fe-Ni diffusion layer A.
The outer canister of battery of the invention, canister shape outside steel plate forming battery is made first with punch forming, at this
The surface layer on the two sides (the inner surface and the outer surface) of steel plate, has been identically formed Fe-Ni diffusion layer with steel plate for tanks of the invention.It connects
, implement plating Ni on the Fe-Ni diffusion layer of at least exterior side of steel plate and forms Ni layers.
Here, as described above, at least part of Fe-Ni diffusion layer of the exterior side of the outer canister of battery of the invention is former
Sample maintains Fe-Ni diffusion layer (the Ni adhesion amount: 50mg/m of the steel plate for tanks of the invention before punch forming2~500mg/m2)。
That is, outside battery of the invention in canister, the Fe-Ni diffusion layer of the exterior side of the steel plate of the outer canister shape of battery
At least part is that Ni adhesion amount is 50mg/m2~500mg/m2Fe-Ni diffusion layer A.
Outside battery of the invention the proper range of the Ni adhesion amount of the Fe-Ni diffusion layer A of canister, thickness and Ni ratio with
It is identical with Ni ratio in Ni adhesion amount, the thickness of the Fe-Ni diffusion layer of steel plate for tanks of the invention.
Outside battery of the invention in canister, the thickness of the Ni layer on Fe-Ni diffusion layer is as described above, preferably 1 μm with
On, more preferable 2 μm or more.There is no particular limitation for its upper limit, and preferably 7 μm or less.
[battery]
Battery of the invention has the electricity of the outer canister of battery of the invention, configuration inside of canister outside battery of the invention
Solve liquid, electrode and separator.
That is, the inside that battery of the invention is the canister outside battery of the invention is at least filled with necessary to belonging to battery
Electrolyte, electrode and the separator of composition further can fill other compositions as needed.
Battery of the invention is due to having used canister outside battery of the invention, corrosion resistance excellent.
[embodiment]
The present invention is specifically described hereinafter, enumerating embodiment.But the present invention is not limited to these embodiments.
<manufacture of battery outer cylinder steel plate for tanks>
As steel plate, using the unannealed state after the cold rolling of plate thickness 0.25mm Nb addition ultra-low carbon steel (composition of steel, with
Quality % meter, includes C:0.002%, Si:0.02%, Mn:0.15%, P:0.01%, S:0.008%, Ni:0.02%, Nb:
0.01%).Pre-treatment comprising degreasing and pickling is carried out to the steel plate.
For the steel plate after pre-treatment, is bathed using watt and implement plating Ni.At this moment, attached to become Ni documented by following table 1
Amount (unit: mg/m2) mode to the conditions such as current density carry out be suitable for adjustment.
Then, the steel plate that will implement plating Ni imports continuous annealing line, steel plate is implemented to anneal, and make Ni to inside steel plate
Diffusion, forms Fe-Ni diffusion layer on the surface layer on the two sides of steel plate.At this moment, by using annealing conditions documented by following table 1
(soaking temperature and retention time) makes the thickness (unit: μm) of Fe-Ni diffusion layer and Ni ratio (unit: %) become following table 1
Documented numerical value.
After forming Fe-Ni diffusion layer, implement skin-pass, the outer canister of battery for obtaining test material No.1~27 is used
Steel plate.
<manufacture of the outer canister of battery>
" molding "
Obtained battery outer cylinder steel plate for tanks is punched into circle, drawing is formed at cup-shaped, through re-drawing and DI process
Type is the outer canister shape of battery of 18650 cylindric types.The plate thickness of sidewall sections is thinning through DI process and is become
0.15mm。
" plating Ni "
Then, in the molded at least outside for the battery outer cylinder steel plate for tanks of canister shape outside battery, by tumble-plating process reality
Plating Ni and form 4 μm of thickness of Ni layer.So obtain the outer canister of battery.
<evaluation>
" corrosion resistance "
It is ready to for sodium chloride 5g and 30% aqueous hydrogen peroxide solution 1.5cc being blended in water-soluble obtained in pure water 100g
Liquid.Canister outside obtained battery is impregnated 16 hours in the aqueous solution at room temperature.After dipping, canister outside battery is drawn
Out, the case where being confirmed whether hole by visual observation, will confirm that hole is used as " B ", will confirm that conduct the case where less than hole
" A ", is recorded in following table 1." A " indicates corrosion resistance excellent.
" scratch resistance "
Using the molding die made of hardened steel, above-mentioned molding is repeated, to molded for canister shape outside battery
Number (tank number processed) until scratch can be confirmed by visual observation on the surface of the battery outer cylinder steel plate for tanks of shape is counted.
In following table 1, it will confirm that the tank number processed until scratch is that the situation of 50000 tanks or less is denoted as " D ", by tank number processed
More than 50000 tanks and the situation below 70000 tanks is denoted as " C ", by tank number processed be more than 70000 tanks and in 100000 tanks it is below
Situation is denoted as " B ", is more than that the case where scratch is still not confirmed in 100000 tanks is denoted as " A " by tank number processed.
" A ", " B " or " C " indicates that scratch resistance is excellent.On practical, preferably " A " or " B ", more preferable " A ".
[table 1]
Table 1
As shown in Table 1 above, the Ni adhesion amount of Fe-Ni diffusion layer is more than 500mg/m2The He of test material No.10~11
22~23, scratch resistance is poor.The Ni adhesion amount of Fe-Ni diffusion layer is less than 50mg/m2Test material No.12 and 24, corrosion resistance
Difference.
In contrast, the Ni adhesion amount of Fe-Ni diffusion layer is 50mg/m2~500mg/m2Test material No.1~9,13
~21 and 25~27, scratch resistance and scratch resistance are good.
Test material No.1~9,13~21 and 25~27 are compared, in the Ni ratio of the most surface of Fe-Ni diffusion layer
Rate is 1.0% test material No.1~9,13~21 and 26~27 more than and less than 20.0% and Ni ratio is 20.0% or more
Test material No.25 compare, scratch resistance is be more good.
Test material No.1~9 are compared, compared with test material No.5~7, the lower test material of Ni ratio
No.1~4 and 8~9 scratch resistance it is be more good.
Similarly, test material No.13~21 are compared, compared with test material No.17~19, Ni ratio is lower
Test material No.13~16 and 20~21 scratch resistance it is be more good.
Claims (8)
1. a kind of battery outer cylinder steel plate for tanks has Fe-Ni diffusion layer on the surface layer on the two sides of steel plate,
The Fe-Ni diffusion layer is 50mg/m in the adhesion amount in terms of Ni conversion of every one side of the steel plate2~500mg/m2。
2. battery outer cylinder steel plate for tanks according to claim 1, wherein
It is 1.0% more than and less than 20.0% in the Ni ratio of the most surface of the Fe-Ni diffusion layer,
The Ni ratio is total amount of the Ni amount relative to Fe amount and Ni amount in the most surface of the Fe-Ni diffusion layer
The unit of ratio, the Fe amount and the Ni amount is atom %.
3. battery outer cylinder steel plate for tanks according to claim 1 or 2, wherein
The Fe-Ni diffusion layer with a thickness of 0.01 μm more than and less than 0.5 μm.
4. a kind of outer canister of battery, the surface layer of the inner surface and the outer surface of the steel plate of canister shape is expanded with Fe-Ni outside battery
Layer is dissipated,
Further there are Ni layers on the Fe-Ni diffusion layer of the exterior side of the steel plate,
A part of the Fe-Ni diffusion layer of the exterior side of the steel plate is every one side of the steel plate in terms of Ni conversion
Adhesion amount is 50mg/m2~500mg/m2Fe-Ni diffusion layer A.
5. the outer canister of battery according to claim 4, wherein
It is 1.0% more than and less than 20.0% in the Ni ratio of the most surface of the Fe-Ni diffusion layer A,
The Ni ratio is total amount of the Ni amount relative to Fe amount and Ni amount in the most surface of the Fe-Ni diffusion layer
The unit of ratio, the Fe amount and the Ni amount is atom %.
6. the outer canister of battery according to claim 4 or 5, wherein
The Fe-Ni diffusion layer A with a thickness of 0.01 μm more than and less than 0.5 μm.
7. canister outside the battery according to any one of claim 4~6, wherein
Described Ni layers with a thickness of 1 μm or more.
8. a kind of battery has the outer canister of battery described in any one of claim 4~7, is configured at the outer canister of the battery
Inside electrolyte, electrode and separator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016125251 | 2016-06-24 | ||
| JP2016-125251 | 2016-06-24 | ||
| PCT/JP2017/021760 WO2017221763A1 (en) | 2016-06-24 | 2017-06-13 | Steel sheet for battery outer cylindrical canister, battery outer cylindrical canister, and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109072449A true CN109072449A (en) | 2018-12-21 |
| CN109072449B CN109072449B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780027816.5A Active CN109072449B (en) | 2016-06-24 | 2017-06-13 | Steel plate for outer can of battery, outer can of battery and battery |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6260752B1 (en) |
| CN (1) | CN109072449B (en) |
| TW (1) | TWI650892B (en) |
| WO (1) | WO2017221763A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945155A (en) * | 2017-07-28 | 2020-03-31 | 杰富意钢铁株式会社 | Steel sheet for battery outer can, and battery |
| US11946121B2 (en) | 2017-07-28 | 2024-04-02 | Jfe Steel Corporation | Steel sheet for battery outer tube cans, battery outer tube can and battery |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102507717B1 (en) * | 2018-08-29 | 2023-03-07 | 제이에프이 스틸 가부시키가이샤 | Steel sheet for cans and its manufacturing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212778A (en) * | 2001-01-19 | 2002-07-31 | Nippon Steel Corp | Ni PLATED STEEL SHEET FOR POSITIVE ELECTRODE CAN OF ALKALI MANGANESE BATTERY HAVING EXCELLENT BATTERY CHARACTERISTIC, AND PRODUCTION METHOD THEREFOR |
| CN101501884A (en) * | 2006-08-09 | 2009-08-05 | 松下电器产业株式会社 | Battery can and battery using the same |
| JP2009263727A (en) * | 2008-04-25 | 2009-11-12 | Nippon Steel Corp | Ni-PLATED STEEL SHEET FOR CONTAINER, CONTAINER MANUFACTURED FROM THE SAME AND MANUFACTURING METHOD THEREFOR |
| CN102763237A (en) * | 2010-01-08 | 2012-10-31 | 东洋钢钣株式会社 | Ni-plated steel sheet with excellent pressability for battery can |
| CN105164321A (en) * | 2013-04-30 | 2015-12-16 | 新日铁住金株式会社 | Ni-plated steel sheet, and method for producing Ni-plated steel sheet |
| CN105283584A (en) * | 2013-05-21 | 2016-01-27 | 新日铁住金株式会社 | Steel sheet for container, and method for producing steel sheet for container |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6168826B2 (en) * | 2013-04-12 | 2017-07-26 | 東洋鋼鈑株式会社 | Steel with Mn layer |
-
2017
- 2017-06-13 CN CN201780027816.5A patent/CN109072449B/en active Active
- 2017-06-13 JP JP2017544977A patent/JP6260752B1/en active Active
- 2017-06-13 WO PCT/JP2017/021760 patent/WO2017221763A1/en active Application Filing
- 2017-06-21 TW TW106120781A patent/TWI650892B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212778A (en) * | 2001-01-19 | 2002-07-31 | Nippon Steel Corp | Ni PLATED STEEL SHEET FOR POSITIVE ELECTRODE CAN OF ALKALI MANGANESE BATTERY HAVING EXCELLENT BATTERY CHARACTERISTIC, AND PRODUCTION METHOD THEREFOR |
| CN101501884A (en) * | 2006-08-09 | 2009-08-05 | 松下电器产业株式会社 | Battery can and battery using the same |
| JP2009263727A (en) * | 2008-04-25 | 2009-11-12 | Nippon Steel Corp | Ni-PLATED STEEL SHEET FOR CONTAINER, CONTAINER MANUFACTURED FROM THE SAME AND MANUFACTURING METHOD THEREFOR |
| CN102763237A (en) * | 2010-01-08 | 2012-10-31 | 东洋钢钣株式会社 | Ni-plated steel sheet with excellent pressability for battery can |
| CN105164321A (en) * | 2013-04-30 | 2015-12-16 | 新日铁住金株式会社 | Ni-plated steel sheet, and method for producing Ni-plated steel sheet |
| CN105283584A (en) * | 2013-05-21 | 2016-01-27 | 新日铁住金株式会社 | Steel sheet for container, and method for producing steel sheet for container |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945155A (en) * | 2017-07-28 | 2020-03-31 | 杰富意钢铁株式会社 | Steel sheet for battery outer can, and battery |
| CN110945155B (en) * | 2017-07-28 | 2022-06-07 | 杰富意钢铁株式会社 | Steel sheet for battery outer can, and battery |
| US11946121B2 (en) | 2017-07-28 | 2024-04-02 | Jfe Steel Corporation | Steel sheet for battery outer tube cans, battery outer tube can and battery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017221763A1 (en) | 2017-12-28 |
| CN109072449B (en) | 2023-07-14 |
| TWI650892B (en) | 2019-02-11 |
| JP6260752B1 (en) | 2018-01-17 |
| JPWO2017221763A1 (en) | 2018-06-28 |
| TW201813158A (en) | 2018-04-01 |
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