The battery electrolyte is a liquid or paste-like substance, depending on the battery type. However, regardless of the type of battery, the electrolyte serves the same purpose: it transports positively charged ions bet. A battery has three major components—the positive terminal (cathode), the negative terminal (and)e, and an electrolyte that separates the two. The electrolyte is a solution that allo. Different types of batteries rely on various chemical reactions and electrolytes. For example, a lead-acid battery usually uses sulfuric acid to create the intended reaction. Zinc-air batteries. Yes, you can add electrolytes to a battery, but ONLY if it's a non-sealed wet cell battery. Checking the levels in a wet cell battery is standard maintenance that should be done regularly. The composition of a lithium battery depends on the chemistry that creates the reaction and the type of lithium battery. Most lithium batteries use a liquid electrolyte, such.