Battery separator types pictures and prices

What is a battery separator?

A battery separator is a polymeric membrane placed between the positively charged anode and negatively charged cathode to prevent an electrical short circuit. The separator is a microporous layer that is moistened by the electrolyte, acting as a catalyst to increase the movement of ions from one electrode to the other.

Who makes a lithium ion battery separator?

Founded in the US in 1984, Entek is the only lithium ion battery separator manufacturers in the world producing all three major separator technologies (PE, AGM and Lithium separators). It is also the world’s leading designer and manufacturer of high-reliability microporous polyethylene battery separators for lead-acid and lithium-ion batteries.

What should be the size of pores in a Li-ion battery separator?

The size of the pores in a Li-ion battery separator should be smaller than the particle size of the electrode components. The typical porosity of the separator is 40%, and the pores should be uniformly distributed in a tortuous structure.

How is a ceramic battery separator made?

The dry process is commonly employed for manufacturing ceramic-based battery separators. The first step in this process is to mix the ceramic powders with binders and additives.

What is the function of a polyethylene separator in a battery?

The polyethylene separator (PE) shuts down the battery when the core temperature reaches 130°C, this process stops the transporting of ions between the electrodes. If the battery does not shut down at the rising temperature, heat in the failing cell could rise and lead to thermal runaway causing the battery to heat up and even catch fire.

What is Soteria battery separator?

Unlike other in top 5 lithium ion battery separator manufacturers in the world, Soteria’s patented technology purportedly eliminates the root cause of thermal runaway, isolates short circuits, and allows batteries to continue to function after damage.