CN108220660B - Alloy for overcurrent protection of heavy-current battery, heavy-current battery overcurrent protection piece, heavy-current battery overcurrent protector and battery monomer - Google Patents
Alloy for overcurrent protection of heavy-current battery, heavy-current battery overcurrent protection piece, heavy-current battery overcurrent protector and battery monomer Download PDFInfo
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- CN108220660B CN108220660B CN201710890833.3A CN201710890833A CN108220660B CN 108220660 B CN108220660 B CN 108220660B CN 201710890833 A CN201710890833 A CN 201710890833A CN 108220660 B CN108220660 B CN 108220660B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
- C22C5/08—Alloys based on silver with copper as the next major constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0241—Structural association of a fuse and another component or apparatus
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
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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
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Abstract
The invention relates to an alloy for overcurrent protection of a high-current battery, a high-current battery overcurrent protection piece, a high-current battery overcurrent protector, a battery monomer and a battery. The alloy for overcurrent protection of the high-current battery comprises the following elements in percentage by mass: 89.8-92.9% of silver; 4-6% of copper; 3-4% of tin; 0.1-0.2 of gold. The heavy-current battery overcurrent protection piece manufactured by the silver-copper-tin-gold alloy can realize a safety protection scheme of heavy-current charging and discharging (more than 20A), and has the advantages of small volume, low cost and simple manufacturing process.
Description
Technical Field
The invention relates to an alloy for overcurrent protection of a high-current battery, a high-current battery overcurrent protection piece, a high-current battery overcurrent protector and a high-current battery monomer.
Background
At present, the power lithium battery is developed very rapidly, and particularly, the automobile industries such as electric passenger cars, electric buses and electric buses rise rapidly, so that the application of large-current charging and discharging of the lithium battery is increased, and the potential safety hazard of the lithium battery is brought. At present, no good safety protection measures are available for large-current charging and discharging of a single lithium battery in the market, and particularly, no relevant research report is provided on how to protect large-current charging and discharging of the single lithium battery when the charging and discharging current of the single lithium battery reaches 20A or above. The protection scheme of the lithium battery with low power is mature and stable due to the small current and the small power, for example, the maximum charging and discharging current of a single battery is below 5A, like the protection of the lithium battery with low power, PTC is generally added for protection design, and the overcurrent protection device has small volume, so that the protection plate is added to the lithium battery without great influence on the volume of the single battery and is convenient to install. If fuses of common fuses and glass tubes in the market are adopted to protect single batteries charged and discharged with large current, the size is too large, the cost is too high, and the production is not suitable at all; if realize with the mode of protection circuit board, if through detect current after with the break-make of MOS pipe control monomer electricity core charge-discharge circuit come the protection, because the MOS pipe can't bear so powerful electric current, consequently need to connect in parallel with a plurality of MOS pipes and realize, will add very big radiator simultaneously, consequently this kind of protection method is bulky and with high costs, also is not fit for actual batch production and uses. Therefore, for large current charging and discharging of a lithium battery cell, it is urgently needed to provide an overcurrent protection scheme with small volume and low cost.
Disclosure of Invention
The invention aims to solve the technical problems and provides an alloy for overcurrent protection of a high-current battery, which comprises the following metal elements in percentage by mass: 89.8-92.9% of silver; 4.0-6.0% of copper; 3.0-4.0% of tin; 0.1-0.2% of gold.
The invention uses a silver-copper-tin-gold alloy, and a heavy-current battery overcurrent protection piece is manufactured by the alloy so as to realize a safety protection scheme of heavy-current charging and discharging (more than 20A).
In one embodiment, the alloy for overcurrent protection of the high-current battery further comprises metal cadmium and/or metal lead.
The invention also aims to provide a heavy-current battery overcurrent protection piece which is made of the alloy for heavy-current battery overcurrent protection.
The overcurrent protection piece of the high-current battery can be in any shape, such as a belt shape, a thin plate shape, a filiform shape and the like, and can be designed according to specific requirements, such as being made into a common fuse wire. The overcurrent protection piece for the high-current battery manufactured by the alloy has the advantages of small volume, low cost, convenient installation and easy realization of large-scale production and assembly.
In one embodiment, the overcurrent protection piece of the high-current battery is in a filiform shape, the cross section of the overcurrent protection piece is circular, and the diameter of the cross section is less than or equal to 0.50 mm.
The invention can realize the protection of different currents by adjusting the contents of different metal elements in the alloy, and can design the overcurrent protection piece of the high-current battery with different current specifications. As one embodiment, the design specification of the heavy current battery overcurrent protector of the invention comprises a single protector of at least one of 20A, 25A, 35A, 30A, 40A, 50A and 60. When the required protection current is 120A, two 60A devices may be used in parallel. In another embodiment, the fusing current of the overcurrent protection element for the high-current battery is at least one of 30A, 40A and 50A.
In one embodiment, the high-current battery overcurrent protection element with the fusing current of 30A adopts an alloy comprising the following metal elements in percentage by mass:
89.8-90.5% of silver;
5.0-6.0% of copper;
3.0-4.0% of tin;
0.2-0.5% of gold;
0.1-0.2% of cadmium;
lead is less than or equal to 0.1 percent
In one embodiment, the high-current battery overcurrent protection element with the fusing current of 40A adopts an alloy comprising the following metal elements in percentage by mass:
90.5-91.5% of silver;
4.0-5.0% of copper;
3.0-4.0% of tin;
0.2-0.5% of gold;
0.1-0.2% of cadmium;
lead is less than or equal to 0.1 percent.
In one embodiment, the high-current battery overcurrent protection element with the fusing current of 50A adopts an alloy comprising the following metal elements in percentage by mass:
91.5-92.5% of silver;
4.0-4.5% of copper;
3-3.5% of tin;
0.2-0.5% of gold;
0.1-0.2% of cadmium;
lead is less than or equal to 0.1 percent.
The developed overcurrent protection piece for the high-current battery can effectively prevent overheating, burning and explosion caused by the abnormal condition of high current of the battery, in particular to a lithium battery. When a single battery cell has certain abnormity, such as an external discharge loop or a charging loop is larger than rated working current or abusing conditions such as short circuit phenomenon, the heavy-current battery overcurrent protection piece can realize the safety protection of the battery cell, and prevent the safety problem that the battery cell is overheated to cause combustion and even explosion due to heavy-current charging and discharging.
The alloy of the invention can realize the overcurrent protection of the single battery, particularly the charging and discharging current range of a lithium ion battery cell between 20A and 120A. In one embodiment, the fusing current of the heavy-current battery overcurrent protection element is 20 to 60A. Different protection grades are selected according to different working currents, and if the maximum charging and discharging current is required to be 20A, protection is started once the current is larger than 20A; if the user requires a maximum discharge current of 30A, protection is started as soon as a current greater than 30A. By analogy, the invention can maximally realize the charge-discharge protection of the 120A single battery cell. In addition, different protection design applications are carried out according to different requirements of users, for example, for protection larger than 120A, two 60A protection pieces can be connected in parallel for protection. Although the protection of 120A can also be realized by four protection members of 30A, the cost is higher than that of the protection of two protection members of 60A in parallel, and the production process is time-consuming and has reduced stability, because the stability is reduced due to more components. Therefore, the invention preferably adopts a single protection piece for protection when the current is less than 60A, and adopts a mode of parallel connection of a plurality of protection pieces for protection when the current is more than 60A.
In one embodiment, the fusing time of the overcurrent protection element for the high-current battery is 0-40 seconds. In another embodiment, the fusing time of the overcurrent protection element for the high-current battery is 0-20 seconds. In another embodiment, the fusing time of the overcurrent protection element for the high-current battery is 0 to 10 seconds. The fusing time is related to the magnitude of overcurrent, and the more overcurrent, the faster the fusing time. The structure and the size of the overcurrent protection piece of the high-current battery are not limited, and the fusing time of the protection piece made of the alloy is 0-40 seconds and is within the protection range of the invention. The specific design of the overcurrent protection piece of the heavy-current battery can refer to the protection pieces with different current specifications, the fusing time and the passing current curve chart shown in the attached figure 3 of the invention, and the fusing principle is as follows: according to the principle of P i r, when the current is larger than the design current, the heating power P is larger than the sustainable power, and the overcurrent protection element is protected and blown. The relationship between the fusing time and the passing current of the overcurrent protector for the heavy-current batteries with the same size and structure and different current specifications is shown in FIG. 3. (fig. 3 shows that the overcurrent protection pieces of the high-current batteries with different current specifications for testing are identical in shape and are all in a wire shape, and the cross-sectional diameter of the overcurrent protection pieces is 0.30 mm.) for the protection pieces manufactured into the 20A specification, when the overcurrent protection pieces pass through the protection pieces, the fusing time of the overcurrent protection pieces is close to 0.15 second. In one embodiment, the large-current battery overcurrent protection member has a circular cross section, and the diameter of the cross section is less than or equal to 0.50 mm. As an embodiment, when the protection current is 30A, the fusing protection element is designed to be in a thread shape, the diameter of the section of the fusing protection element is designed to be 0.10-0.50 mm, the requirement of fusing time can be met, and the volume is very small. In another embodiment, the overcurrent protection member for a high-current battery has a circular cross section, and the diameter of the cross section is 0.10 to 0.30 mm. As an implementation mode, the protection piece with different current specifications, the fusing time and the passing current curve chart are very suitable for the use of the single battery, especially the lithium ion single high-power battery, due to small volume, manufacturing method and low cost.
The invention also aims to provide a heavy-current battery overcurrent protector which comprises the heavy-current battery overcurrent protector. The overcurrent protector of the heavy-current battery can adopt any existing protector structure, and only the protector is required to be made of the copper-tin-gold alloy. The heavy-current battery overcurrent protector is preferably designed into a Surface Mounted Device (SMD) surface mount device package mode, and is beneficial to installation and production of battery cores due to small volume. If the shell is made of ceramic materials, the overcurrent protection module can resist high temperature (1500-1800 ℃) and can well bear large current, even 120A current; and the strength is good, and meanwhile, the insulation grade is high, and the high voltage of 10000-20000V can be borne.
Another object of the present invention is to provide a battery cell, which employs the above-mentioned overcurrent protection device. The overcurrent protection piece for the high-current battery is very convenient to mount due to the small volume of the overcurrent protection piece for the high-current battery. In one embodiment, the heavy-current battery overcurrent protection element is connected in series with a tab of the positive electrode or a tab of the negative electrode of the battery cell. As an implementation mode, the heavy-current battery overcurrent protection piece is manufactured in a SMD mode, the battery overcurrent protectors are embedded into the single batteries, and the battery overcurrent protectors are connected in series in a common mode such as welding. Such as by series connection with a tab of the positive electrode. The invention realizes the successful embedding of the protection piece and the high-power lithium battery cell and realizes the protection of each lithium battery cell.
Another object of the present invention is to provide a lithium battery, which includes the above battery cell.
Drawings
Fig. 1 is a top view of a high current battery overcurrent protector according to embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a large-current battery overcurrent protector according to embodiment 1 of the present invention, with copper caps removed;
FIG. 3 is a graph showing the protection device with different current specifications, the fusing time and the passing current according to the present invention.
In the figure, 1-ceramic housing; 2-ceramic plate; 3-copper cap; 4-battery overcurrent protection.
Detailed Description
The following specific examples describe the present invention in detail, however, the present invention is not limited to the following examples.
Example 1
The heavy current battery overcurrent protector manufactured by the heavy current battery overcurrent protection piece 4 with the specification of 30A is cuboid in shape and about 42mm in volume3The cross section of the ceramic shell is similar to a U shape as shown in fig. 2, and the U-shaped opening part of the ceramic shell covers and encapsulates the overcurrent protection piece 4 of the high-current battery in the ceramic shell through the ceramic sheet 2, so that the manufacturing process is simpler and more convenient. The 30A-specification high-current battery overcurrent protection piece 4 is made of alloy and comprises the following mass90.0% of fractional metallic element silver; 5.6 percent of copper; 4.0% of tin; 0.2% of gold; 0.1% of cadmium; 0.1 percent of lead. The section of the overcurrent protection piece of the high-current battery is a rectangular sheet, the thickness of the overcurrent protection piece is about 0.37 mm, and the sectional area of the overcurrent protection piece is 0.30mm2The volume is very small. When 100A of current passes through the heavy-current battery overcurrent protector, the fusing time is about 0.90 s; when the current of 200A passes through the heavy-current battery overcurrent protector, the fusing time is about 0.04 s; when 1000A of current passes through the heavy current battery overcurrent protector, the fusing time is about 0 s.
Example 2
The heavy current battery overcurrent protector manufactured by the heavy current battery overcurrent protection piece 4 with the specification of 30A is cuboid in shape and about 42mm in volume3The cross section of the ceramic shell is similar to a U shape as shown in fig. 2, and the U-shaped opening part of the ceramic shell covers and encapsulates the overcurrent protection piece 4 of the high-current battery in the ceramic shell through the ceramic sheet 2, so that the manufacturing process is simpler and more convenient. The 30A-specification high-current battery overcurrent protection piece 4 is made of alloy and comprises 89.8% of metallic element silver in the following mass fraction; 5.4% of copper; 4.0% of tin; 0.5% of gold; 0.2 percent of cadmium; 0.1 percent of lead. The section of the overcurrent protection piece of the high-current battery is a rectangular sheet, the thickness of the overcurrent protection piece is about 0.37 mm, and the sectional area of the overcurrent protection piece is 0.30mm2The volume is very small. When 100A of current passes through the heavy-current battery overcurrent protector, the fusing time is about 0.90 s; when the current of 200A passes through the heavy-current battery overcurrent protector, the fusing time is about 0.04 s; when 1000A of current passes through the heavy current battery overcurrent protector, the fusing time is about 0 s.
Example 3
Unlike example 1, the battery overcurrent protector has a circular cross-section and a diameter of about 0.60 mm. When 100A current passes through the heavy-current battery overcurrent protector, the fusing time is about 1.50 s; when the current of 200A passes through the heavy-current battery overcurrent protector, the fusing time is about 0.09 s; when 1000A of current passes through the heavy current battery overcurrent protector, the fusing time is about 0 s.
Example 4
Battery overcurrent protector with 40A specificationThe battery overcurrent protector made of the protective part 4 is cuboid and has the volume of about 42mm3The cross section of the ceramic shell is similar to a U shape as shown in fig. 2, and the U-shaped opening part of the ceramic shell covers and encapsulates the battery overcurrent protection piece 4 in the ceramic shell through the ceramic plate 2, so that the manufacturing process is simpler and more convenient. The battery overcurrent protection piece 4 with the specification of 40A is made of alloy and comprises the following metal element silver of 91.5 percent by mass; 4.1% of copper; 4.0% of tin; 0.2% of gold; 0.1% of cadmium; 0.1 percent of lead. The section of the battery overcurrent protection piece is a rectangular sheet, the thickness of the rectangular sheet is about 0.37 mm, and the sectional area of the rectangular sheet is 0.30mm2The volume is very small. When 100A of current passes through the battery overcurrent protector, the fusing time is about 2.50 s; when 200A of current passes through the battery overcurrent protector, the fusing time is about 0.15 s; when 1000A of current passes through the battery overcurrent protector, the fusing time is about 0 s.
Example 5
The battery overcurrent protector manufactured by the battery overcurrent protection piece 4 with the specification of 40A is cuboid, and the volume of the battery overcurrent protector is about 42mm3The cross section of the ceramic shell is similar to a U shape as shown in fig. 2, and the U-shaped opening part of the ceramic shell covers and encapsulates the battery overcurrent protection piece 4 in the ceramic shell through the ceramic plate 2, so that the manufacturing process is simpler and more convenient. The battery overcurrent protection piece 4 with the specification of 40A is made of alloy and comprises the following metal element silver of 90.5 percent by mass; 5.0% of copper; 4.0% of tin; 0.2% of gold; 0.2 percent of cadmium; 0.1 percent of lead. The section of the battery overcurrent protection piece is a rectangular sheet, the thickness of the rectangular sheet is about 0.37 mm, and the sectional area of the rectangular sheet is 0.60mm2The volume is very small. When 100A of current passes through the battery overcurrent protector, the fusing time is about 5.00 s; when 200A of current passes through the battery overcurrent protector, the fusing time is about 0.35 s; when 1000A of current passes through the battery overcurrent protector, the fusing time is about 0 s.
Example 6
In the same manner as in example 4, except that the battery overcurrent protector has a circular cross section and a diameter of about 0.30 mm. When 100A of current passes through the battery overcurrent protector, the fusing time is about 2.50 s; when 200A of current passes through the battery overcurrent protector, the fusing time is about 0.15 s; when 1000A of current passes through the battery overcurrent protector, the fusing time is about 0 s.
Example 7
The battery overcurrent protector manufactured by the 50A-specification battery overcurrent protection piece 4 is cuboid in shape and about 42mm in volume3The cross section of the ceramic shell is similar to a U shape as shown in fig. 2, and the U-shaped opening part of the ceramic shell covers and encapsulates the battery overcurrent protection piece 4 in the ceramic shell through the ceramic plate 2, so that the manufacturing process is simpler and more convenient. The 50A-specification battery overcurrent protection piece 4 is made of alloy and comprises the following metal element silver of 92.5 percent by mass; 4.1% of copper; 3.0% of tin; 0.2% of gold; 0.1% of cadmium; 0.1 percent of lead. The section of the battery overcurrent protection piece is a rectangular sheet, the thickness of the rectangular sheet is about 0.37 mm, and the sectional area of the rectangular sheet is 0.30mm2The volume is very small. When 100A of current passes through the battery overcurrent protector, the fusing time is about 5.00 s; when 200A of current passes through the battery overcurrent protector, the fusing time is about 0.25 s; when 1000A of current passes through the battery overcurrent protector, the fusing time is about 0 s.
Example 8
In the same manner as in example 7, except that the battery overcurrent protector has a circular cross section and a diameter of about 0.60 mm. When 100A of current passes through the battery overcurrent protector, the fusing time is about 1.00 s; when 200A of current passes through the battery overcurrent protector, the fusing time is about 0.12 s; when 1000A of current passes through the battery overcurrent protector, the fusing time is about 0 s.
Claims (15)
1. An alloy for overcurrent protection of a high-current battery comprises the following metal elements in percentage by mass:
89.8-92.9% of silver;
4.0-6.0% of copper;
3.0-4.0% of tin;
0.2-0.5% of gold;
the overcurrent protection piece of the high-current battery made of the alloy can realize high-current charging and discharging of more than 20A.
2. The high current battery overcurrent protection alloy of claim 1, further comprising metallic cadmium and/or metallic lead.
3. A large current battery overcurrent protection member made of the large current battery overcurrent protection alloy according to claim 1.
4. The overcurrent protector for high-current batteries as recited in claim 3, wherein: the overcurrent protection piece of the high-current battery is any one of a strip shape, a thin plate shape and a filiform shape.
5. The overcurrent protector for high-current batteries as recited in claim 4, wherein: the overcurrent protection piece of the high-current battery is in a filiform shape, the cross section of the overcurrent protection piece is circular, and the diameter of the cross section is less than or equal to 0.50 mm.
6. The overcurrent protector for high-current batteries as recited in claim 4, wherein: the cross section area of the overcurrent protection piece of the high-current battery is less than or equal to 0.80mm2。
7. The overcurrent protector for high-current batteries as recited in claim 3, wherein: the fusing current of the overcurrent protection piece of the high-current battery is 20-60A.
8. The overcurrent protector for a high-current battery as recited in claim 7, wherein: the fusing current of the heavy-current battery overcurrent protection element is at least one of 20A, 25A, 35A, 30A, 40A, 50A and 60A.
9. The overcurrent protector for a high-current battery as recited in claim 8, wherein: the fusing current of the heavy-current battery overcurrent protection element is at least one of 30A, 40A and 50A.
10. The overcurrent protector for a high-current battery as recited in claim 8, wherein: the high-current battery overcurrent protection piece with the fusing current of 30A adopts an alloy comprising the following metal elements in percentage by mass:
89.8-90.5% of silver;
5.0-6.0% of copper;
3.0-4.0% of tin;
0.2-0.5% of gold;
0.1-0.2% of cadmium;
lead is less than or equal to 0.1 percent.
11. The overcurrent protector for a high-current battery as recited in claim 8, wherein: the high-current battery overcurrent protection piece with the fusing current of 40A adopts an alloy comprising the following metal elements in percentage by mass:
90.5-91.5% of silver;
4.0-5.0% of copper;
3.0-4.0% of tin;
0.2 to 0.5 percent of gold;
0.1 to 0.2 percent of cadmium;
lead is less than or equal to 0.1 percent.
12. The overcurrent protector for a high-current battery as recited in claim 8, wherein: the high-current battery overcurrent protection piece with the fusing current of 50A adopts an alloy comprising the following metal elements in percentage by mass:
91.5-92.5% of silver;
4.0-4.5% of copper;
3.0-3.5% of tin;
0.2-0.5% of gold;
0.1-0.2% of cadmium;
lead is less than or equal to 0.1 percent.
13. The overcurrent protector for high-current batteries as recited in claim 3, wherein: the fusing time of the overcurrent protection piece of the high-current battery under the fusing current is 0-40 seconds.
14. A high-current battery overcurrent protector employing the high-current battery overcurrent protector as recited in claim 3.
15. A battery cell employing the high current battery overcurrent protection as recited in claim 3.
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US4293836A (en) * | 1979-07-11 | 1981-10-06 | San-O Industrial Co., Ltd. | Electrical fuse with an improved fusible element |
JP2529255B2 (en) * | 1987-04-21 | 1996-08-28 | 住友電気工業株式会社 | Fuse conductor |
JP2001073050A (en) * | 1999-08-31 | 2001-03-21 | Sumitomo Electric Ind Ltd | Conductor for fuse and tantalum chip capacitor |
CN1217365C (en) * | 2001-07-18 | 2005-08-31 | Nec修特元件株式会社 | Thermal-sensitive fuse |
JP2005272947A (en) * | 2004-03-25 | 2005-10-06 | Tomokazu Takeuchi | Sintered metal |
JPWO2006132413A1 (en) * | 2005-06-10 | 2009-01-08 | 田中貴金属工業株式会社 | Silver alloy for electrode, wiring and electromagnetic shielding |
JP2007165087A (en) * | 2005-12-13 | 2007-06-28 | Tdk Corp | Method of manufacturing fuse element |
JP5746344B2 (en) * | 2011-07-06 | 2015-07-08 | 株式会社徳力本店 | ELECTRODE MATERIAL FOR THERMAL FUSE, METHOD FOR MANUFACTURING THE SAME, AND THERMAL FUSE USING THE ELECTRODE MATERIAL |
KR101323246B1 (en) * | 2011-11-21 | 2013-10-30 | 헤레우스 머티어리얼즈 테크놀로지 게엠베하 운트 코 카게 | Bonding wire for semiconductor devices, and the manufacturing method, and light emitting diode package including the bonding wire for semiconductor devices |
JP6099672B2 (en) * | 2012-12-14 | 2017-03-22 | 株式会社徳力本店 | Electrode material for thermal fuse and method for manufacturing the same |
CN103667767B (en) * | 2013-12-18 | 2015-08-05 | 福达合金材料股份有限公司 | Preparation method of a kind of silver-colored nickel contact material with enhancing substrate performance additive and products thereof |
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