Polymer Aluminum Solid Capacitors Chemi-Con Conductive Polymer Aluminum Solid Capacitors offer very high reliability and superior low-temperature characteristics by using polymer materials as an electrolyte. Chemi-Con polymer aluminum capacitors from also feature large capacitance and excellent bias characteristics, an advantage over multilayer ceramic capacitors (MLCCs). Polymer capacitors offer stable characteristics independent of temperature, extremely low ESR, low ESL, and high ripple current capability.