Recently, the research team of the Toyota North America Research Institute (TRINA) has developed a new type of lithium battery nanosulfide cathode material. This material uses a truffle-like structure that includes sulfur particles embedded in hollow carbon nanospheres and seal flexibility. Laminated (LBL) nanofilm carbon conductors. TRINA has published papers in the Journal of Energy and Environmental Sciences of the Royal Society of Chemistry (RSC). In the paper, the researchers pointed out that the new type of nano-sulfur cathode material (65% of the final sulfur load) can work under 2C high-speed conditions (1C corresponds to 1 hour full charge or discharge), and can complete more than 500 charge and discharge cycles, Coulomb efficiency (ie, charge and discharge efficiency) is almost 100%. During the entire chemical reaction process, since the laminated nanomembrane carbon conductors can be self-assembled, the formation of an ordered supermolecular structure on the surface characteristics of the nanosulfur cathode material is greatly affected. Any material (ion or hydrogen bond) that has adhesive ability and can react with a solvent can be converted into a multi-layer structure by means of lamination. The above results show that for other low-conductivity cathodes, this new type of nano-sulfur cathode material will become an ideal solution in the future. Nanosulfur cathode materials can bring theoretical capacities up to 1672 mA/g, which is very attractive for next-generation batteries. However, in practical applications, the problems of high resistance, low load active material, and decomposition of polysulfide in the electrolyte during charge and discharge still pose many challenges. These problems will result in decreased Coulomb efficiency and accelerated battery capacity loss. Self-discharge occurs. Previously, many research groups have been exploring the use of polymer electrolytes, nano-coatings and nano-films to prevent the decomposition of polysulfides, thereby improving the performance of lithium-sulfur batteries. TRINA researchers found after several experiments that although polymer-based electrolytes can be used to prevent the decomposition of polysulfides, their conductivity is significantly lower than that of common liquid-based electrolytes, which also makes it difficult to achieve efficient discharge rates. It's harder. When the polymer is used in a composite or nanocoating, the sulfur cathode has improved cycling characteristics. In addition, the polymer can provide a sulfur cathode with an elastic framework that can freely adjust its capacity between charging and discharging. At the same time, the new structure adopted by the TRINA research group in lithium-battery nanosulfide cathode materials can also suppress the decomposition of intermediate polysulfides and reduce the generation of carbon conductors.
The Style PVR pressure/Vacuum Relief Valve is a Sanitary Valve designed specifically for the brewing, beverage, food processing and pharmaceutical industries.
l Self-actuated operation.
l Relieves excess air or gas pressure.
l Relieves excess liquid pressure in the absence of air or gas blanketing.
l Designed to prevent vacuum formation that could cause the vessel to buckle.
l Body and all internal parts designed to operate after exposure to process fluids and withstand direct flushing and cleansing of sterilizing agents, caustics, water or steam.
l Allows complete drainage after operation and/or flushing and minimizes crevices which might trap contaminants or promote freezing in cold environments.
l All materials are corrosion resistant and all exposed surface finishes are controlled to enhance sanitary features.
1. Size: 1/2"- 6"
5. Cartridge and body: Forge
FAQ:
Tank Pressure Vacuum Relief Valve Vacuum Relief Valve,Stainless Steel Relief Valves,Stainless Steel Valve,Pressure Relief Valve Wenzhou Qili Fluid Equipment Co., Ltd. , https://www.qlssvalve.com
2. Material: SS304, SS316L
3. Standard: SMS,DIN,3A,IDF,ISO or according to customer request.
4. Connection: Butt-welded,clamped,threaded
6. Seal: Food Rubber
1.Are you a trader or manufactory?
We are a manufactory (Own Forging workshop and CNC machining workshop )
2.Can your products reach to FDA , CE and 3A requirements?
Yes, all of our material can reach to the requirements of FDA, ISO and 3A Certificate).
3.We can supply:
Sanitary Butterfly Valve, Sanitary Check Valve and Diaphragm Valves, as well as Various Tank Accessories: Sight Glass, Strainers/Filter, Cleaning Ball, And other Pipe Fittings , (Pipe Unions: SMS, DIN, IDF, RJT, 3A,DS; Fittings: Ferrule,Elbow, Tee, Reducer and all other Non-standrad fittings), each products are tested well by our strictly Quality Control System, and we also have excellent service to support you and promote your business.
4.Lead Time:
For large quantity, as usual, it can be sent out within 20-40 days.
Small parcel will be dispatched by DHL, FedEx, UPS OR TNT Courier.
Big cargo will be delivered by Air freight or By Sea.
5.Our Service:
About payment:
Payment methods: L/C, T/ T, Paypal,Western Union
6.About samples:
We can provide samples production and service. Usually 2 to 5 days, the sample can be sent to your hands. We will choose the shipping way as you required: By sea, by air or by express. Any question about samples, please contact us.
7.For OEM products:
We will finish the production within 20-40 days after payment has been confirmed.
About delivery and shipping:
We will choose the delivery way as you required: By sea, by air, by express ect. Save your cost is our mission.
8.Warranty:
Any question or problem will be respond within 12 hours.
9.Lifetime service:
Any problem happened to our product, we will do our best to help client to solve it, spare parts will be half price in lifetime.
10.Problem solve:
If you can't solve the problem in your local, please delivery the product to us, we will repair it and then back to you.
11.Quality control:
All the products are calibrated with real working condition, and tested before shipping as qualified product.
12.Purpose:Attitude is everything.