The chemical reaction of positive electrons is similar to that of nickel-cadmium cells (NiCd) using both nickel oxide hydroxide (NiOOH).
ປະຕິກິລິຍາທາງເຄມີທີ່ electrode ໃນທາງບວກແມ່ນຄ້າຍຄືກັບຈຸລັງ nickel-cadmium (NiCd), ເຊິ່ງທັງສອງໄດ້ໃຊ້ທັງ nickel oxide hydroxide (NiOOH).