ʻO nā pila ke kī nui i ka hoʻomohala ʻana i nā kaʻa uila. Ke kū nei nā ʻōhua mana kaʻa i nā pilikia i ka hoʻokō ʻana i nā koi ʻekolu o ke kumu kūʻai haʻahaʻa, ka mana kiʻekiʻe, a me ka palekana kiʻekiʻe. ʻO nā pilahi polimer lithium. Hoʻopaʻa ʻia nā ʻakika nickel{3}}metala hydride i ʻelua manawa o ka ikehu no kēlā me kēia paona o nā ʻakika acid-lead. Ua holomua wikiwiki ʻo Kina i ka ʻenehana a me ka hoʻomohala ʻana i nā ʻaneʻi nickel-metal hydride a me lithium-ion. He ʻumi mau kūlanakauhale Kina i waena o 20 mau kūlanakauhale haumia loa o ka honua. He 10 mau kaa o Kina i keia manawa no 1,000 kanaka, aka, he kakaikahi na waiwai aila, a he umi miliona tona aila e laweia mai i kela makahiki i keia makahiki. Me ka hoʻonui ʻana i ka hoʻokele waiwai, manaʻo ʻia e piʻi ka ʻona kaʻa ma kēlā me kēia kanaka ma Kina i ka pae honua-110 mau kaʻa no 1,000 poʻe. Manaʻo ʻia e piʻi aʻe kēia helu he ʻumi, e hana ana i ka lawe ʻana i ka aila i pilikia nui. No laila, ʻo ka noiʻi ʻana a me ka hoʻomohala ʻana i nā kaʻa uwila ma Kina, ʻaʻole ia he ana no ka manawa pōkole, -akā, he noʻonoʻo koʻikoʻi no ka wā lōʻihi.
Ma hope o nā makahiki o ka hoʻomohala ʻana, ua ulu mālie ka ʻenehana kaʻa uila maʻemaʻe a ua kūʻai ʻia a hoʻohana ʻia i nā ʻāina e like me ʻAmelika Hui Pū ʻIa, Iapana, a me ʻEulopa. Ma kahi o 40,000 mau kaʻa uila maʻemaʻe e hana ana ma ka honua holoʻokoʻa, me 8,000 ma Farani, 7,000 ma United States, a me 7,400 ma Iapana. Hoʻohana nui ʻia lākou i nā ʻōnaehana kaʻa lehulehu.
Wahi a nā helu helu hou loa mai ka China Association of Automobile Manufacturers ma Ianuali 2023, ua hoʻomau ka mākeke kaʻa kaʻa hou o Kina i ka ulu pahū ma 2022, me ka hana a me ke kūʻai ʻana a hiki i 7.058 miliona a me 6.887 miliona mau ʻāpana, e hōʻike ana i ka makahiki -ma -ka piʻi o ka honua he 96.9. kūlana no ʻewalu mau makahiki.