In the electronics industry, when a small wafer is cut from a large wafer, it often produces large amounts of debris. Usually these materials will be discarded, but thanks to a research currently being carried out by Tohoku University and Osaka University, these silicon debris will soon be used in the field of high-performance lithium-ion batteries. The scientists started with ordinary silica dust, washed away impurities (such as coolants used during the cutting process), made them into about 15nm thick powders, wrapped them with carbon, and finally made the anode of the battery.
Recycling process diagram.
Tests have shown that a lithium-ion semi-dry cell using this anode material can have a unit capacity of 1200 mAh/g (milliampere-hours per gram) and a cycle time of over 800 cycles.
For outsiders, this number may not be obvious. In fact, its performance is 3.3 times that of traditional graphite anodes.
The researchers pointed out that if mass production, the scale of the recovery process will be more simple, and the cost of the anode will become quite low. They expect that the industry's annual silicon dust will be sufficient for global demand for anode materials.
Details of this study have been published in the recently published "Scientific Reports" journal.
Carbon Steel Pipe is made from ingot or solid round steel after perforation capillary, then through hot rolling or cold rolling .Carbon Steel Pipe has an important position in the steel industry in our country.
Carbon steel pipe used for conveying fluid pipe, such as oil, natural gas, water, gas, steam, etc.Steel pipe contains two types: seamless steel pipe and welded steel pipe .Steel pipe is one of our mainly produces ,made of carbon steel, stainless steel, alloy steel and other special metal materials as required by its customers,such as galvanized steel pipe.
Type
Carbon Seamless Steel Pipe
Pipe Size
1/2'--48'(DN15-1200)
Wall Thickness
SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,
SCH140,SCH160,XXS DIN, JIS standard thickness
Length
Fixed: 3.0 , 5.8 , 5.85 , 5.9 , 6.0 ,11.8 , 12.0m. Random length: 5-12m
Standard
ASTM A53,A106,API 5L,ASME B36.10M-1996
DIN1626,DIN1629,DIN17175,DIN 2448
JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461
Material
Q235, 20#, Q345
A53B, A106B, API 5L B,X42,X46,X52,X60, X65
ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4
STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49
Application
Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling,
chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure,
petrochemical, pharmaceutical industry
Surface
Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,etc.
Package
Plastic caps on both ends, Steel bundle, Woven bag or acc. to customers' request
Certificate
ISO9001:2008, SGS,BV, etc
Capacity
80000tons/year
Carbon Steel Pipe
Carbon Steel Pipe,Welded Carbon Pipe,Small Carbon Steel Pipe,Seamless Carbon Steel Pipe
Shijiazhuang Huize Pipe Fitting Co., Ltd. , https://www.huizegd.com