Nā te nui o te whakamahinga o ngā pākahiko nickel-cadmium (Ni-Cd), he paitini te cadmium, ā, he uaua te whakakorenga o ngā pākahiko para, ā, kua poke te taiao, nō reira ka āta hangaia he pākahiko hauwai-whakaora nickel-metal hydride (Ni-MH) hei whakakapi.
Mō te mana o te pākahiko, he rite te rahi o ngā pākahiko nickel-metal hydride ka taea te whakahou ake ki ngā pākahiko nickel-cadmium, tata ki te 1.5 ki te 2 ngā wā teitei ake, ā, kāore he parahanga cadmium, kua whānuitia te whakamahinga i roto i ngā whakawhitiwhiti kōrero pūkoro, ngā rorohiko pona me ētahi atu taputapu hiko iti kawe.
Kua tīmata te whakamahi i ngā pākahiko nickel-metal hydride kaha ake i roto i ngā waka penehīni/hiko ranu, ka taea te whakamahi i ngā pākahiko nickel-metal hydride kia tere te utu me te tuku i te hiko. Ina tere te oma o te waka, ka taea te penapena i ngā whakaputa hiko ki roto i ngā pākahiko nickel-metal hydride o te waka. Ina tere te oma o te waka, he nui te penehīni e pau ana i te tere teitei, nō reira, hei penapena penehīni, i tēnei wā, ka taea te whakamahi hei taraiwa i te motuka hiko o ngā pākahiko nickel-metal hydride hei whakakapi i te mahi a te miihini mura ā-roto. Hei penapena penehīni, ka taea te whakamahi i te pākahiko nickel-metal hydride kei runga i te papa hei taraiwa i te motuka hiko hei whakakapi i te miihini mura ā-roto, e kore e whakarite noa i te taraiwa noa o te waka, engari ka penapena hoki i te nui o te penehīni, nō reira, he nui ake te kaha o ngā waka ranu ki te mākete i whakaritea ki te tikanga tuku iho o te waka, ā, kei te whakanui ake ngā whenua o te ao i ngā rangahau i tēnei mara.
Ka taea te wehewehe i te hītori whanaketanga o te pākahiko NiMH ki ngā wāhanga e whai ake nei:
Te wāhanga tīmatanga (te tīmatanga o te tekau tau atu i 1990 ki waenganui o te tekau tau atu i 2000): kei te whanake haere te hangarau pākahiko nickel-metal hydride, ā, kei te whānui haere ngā tono arumoni. Ko te nuinga o ēnei e whakamahia ana i roto i ngā hua hiko kaihoko iti kawe pērā i ngā waea kore aho, ngā rorohiko pona, ngā kāmera mamati me ngā taputapu oro kawe.
Waenga-wāhanga (waenga-tau 2000 ki te tīmatanga o te tau 2010): I te whanaketanga o te Ipurangi pūkoro me te rongonuitanga o ngā taputapu atamai pēnei i ngā waea atamai me ngā papa rorohiko, kua whānui ake te whakamahinga o ngā pākahiko NiMH. I taua wā anō, kua pai ake te mahi a ngā pākahiko NiMH, me te piki haere o te kiato pūngao me te roa o te huringa.
Wāhanga o nāianei (waenganui o te tekau tau 2010 ki nāianei): Kua noho ngā pākahiko nikara-whakarewa hei tetahi o ngā pākahiko matua mō ngā waka hiko me ngā waka ranu. Nā te whanaketanga tonu o te hangarau, kua piki haere tonu te kaha o ngā pākahiko NiMH, ā, kua piki ake hoki te haumaru me te roa o te huringa. I taua wā, nā te piki haere o te mōhiotanga o te ao ki te tiaki taiao, e paingia ana hoki ngā pākahiko NiMH nā ō rātou āhuatanga kore-parahanga, haumaru me te pumau.
Wā tuku: Whiringa-ā-rangi 15-2023
