post 4





















































































































Popular posts from this blog

How to buy Lithium Ion cells

Image
Lithium-ion batteries have a higher energy density, especially the battery module, in the event of an accident, conventional means can not effectively control the rapid spread of heat or prevent the continuous explosion of the battery, which may have serious consequences. Especially in the case of lithium batteries burning or exploding during air transportation, the consequences to passengers and aircraft would be very serious or even catastrophic. So how exactly did the lithium battery accident happen, let’s look at the characteristics of the lithium battery itself. Lithium battery characteristics 1 High Energy Lithium battery is a high-energy item, if it catches fire and explodes, the danger is enormous. Take the 300Wh/kg square lithium ion battery for example, 1kg square lithium battery contains 1.08 × 10 6J of energy; 1g TNT can release 4184J of energy, the conversion shows that the energy contained in 1kg square lithium battery is equivalent to about 258g TNT, the energy contained
Read more

PV Panel recycling technologies

Image
  Solar power is booming, with millions of metric tons of solar panels being produced each year. A panel has a projected lifespan of about 25 years, which means that today’s new solar farms will go out of service in the late 2040s. Most of the weight in a solar panel, about 75 percent, is glass, aluminum, with 10 percent; wiring in a junction box, at 5 percent; and silicon, with just 3.5 percent. Dedicated recyclers are needed, the authors write, to do a more thorough job of recycling all the components of a panel—including the crystalline silicon in the photovoltaic cells themselves. Silicon wafers account for about half the cost of a panel, as well as over half the energy and carbon footprint of manufacturing a panel. But silicon isn't currently being targeted for recycling much because the recovered silicon isn't pure enough to go straight back to a wafer manufacturer. Studies show that the impurity levels are an important issue during the recycling processes.  The resulting
Read more