Here you can find some information about Li ion batteries and its application, progress in developing new materials and technique, history and background. Some problems, limitations, safety and advances will be discussed as well.
Lithium Polymer Battery Explosion's (liposack) Video
Get link
Facebook
X
Pinterest
Email
Other Apps
Here are some new testings (overcharge) of Li-ion polymer batteries
Polypore’s Celgard Files Suit Against Sumitomo Over Batteries - Bloomberg : "" The complaint, filed Feb. 22 in federal court in Charlotte, North Carolina, claims Sumitomo is infringing a patent issued in 2002 for a separator in high-energy rechargeable batteries. The separators prevent short circuits that can reduce efficiency and limit safety problems from overheating. (Via Bloomberg .)
Unlike dense ceramic coatings applied as a separate layer on competing separators, PPT’s products contain ceramic particles that are thoroughly distributed throughout their chemically inert PVDF polymer. The particles reside primarily in the pore walls, leaving a large and uniform open pore structure that enables ions to pass through with less resistance and less heat generation. * More power in high-current applications * Reduced separator shrinkage * Increased thermal stability with less cell degradation * Extended cycle life * Higher bake-out and operating temperatures * Improved puncture and abuse resistance Although, the application of such separator may improve safety, however according to presented test data it will have minimal effect, or not significant. Depends on battery package, it may have serious explosion (due to electrolyte flammability) at much lower temperature.
Comments