Ua hoʻokumu ʻo Chalmers University a me KTH i kahi paʻa paʻa maʻalahi. Haʻahaʻa haʻahaʻa ikehu, akā aia ka mea hiki

He ʻano hou nā mea hoʻolālā i ka hana pākaukau. ʻO nā mea ʻeleʻele a hiki i kēia manawa he ballast wale nō ke hoʻololi ʻia i mau mea i lilo i kumu no ka pākaukau a i ʻole ke kaʻa. A ma kēia ala i hahai ai nā ʻepekema mai ʻelua mau kula ʻenehana kaulana o Suedena: Chalmers University a me ka Royal Institute of Technology (KTH).

ʻO nā mea hoʻopaʻa hoʻopaʻa maʻalahi e mahalo i nā composites. 0,024 kWh / kg i kēia manawa, ʻo 0,075 kWh / kg nā hoʻolālā

Kapa ʻia nā paʻa kūkulu i kekahi manawa he "massless", akā ʻaʻole pono e lawe ʻia kēia huaʻōlelo ma ke ʻano he ʻano o ka physics particle elementary. ʻO nā pūnaewele "Massless" i loko o ke kaʻa, he mau pūnaewele wale nō ia ʻaʻole i ʻoi aku ka ballast no ka mea hana lākou ma ke ʻano he iwi iwi, hoʻoikaika, a me nā mea ʻē aʻe - nā hale pono i loko o ke kaʻa.

Hana ʻia e ke Kulanui ʻo Chalmers a me KTH, ʻelua mau electrodes: carbon fiber (anode) a me lithium iron phosphate (cathode), ma waena o ia mea he mea aniani i hoʻopiha ʻia me ka electrolyte. Ke nānā nei i ka hoʻopaʻa ʻana, hiki iā mākou ke ʻōlelo ua hōʻiliʻili ʻia kēia mau mea a pau i hoʻokahi kino hui:

Penei ka hana ʻana o ka loulou hili ʻia a aia wau ma ka electrodes Volta 8,4 volts (3x 2,8V). Ua ʻae ka poʻe ʻepekema ua hoʻokō lākou ikehu ikehu pono manawa 0,024 kWh / kg, ʻoi aku ia ma mua o ʻumi mau manawa haʻahaʻa ma mua o nā pākaukau o kēia wā maikaʻi loa (0,25-0,3 kWh / kg). Eia naʻe, inā mākou e hoʻomanaʻo me nā mea maʻamau e pono e hoʻohui i ke kaumaha o nā modula a me ka pahu pākaukau, lilo ka ʻokoʻa i "wale" 6-8 mau manawa.

ʻĀpana liʻiliʻiʻo ka modulus o ka elasticity o ka loulou kūkulu o ka prototype ʻoi aku ma mua o 28 GPa... No ka hoʻohālikelike: plastic, hoʻoikaika ʻia me ka carbon fiber, loaʻa iā Young's modulus o 30-50 GPa, no laila ʻaʻole ʻokoʻa loa ke kelepona o ke Kulanui ʻo Chalmers a me KTH mai kāna hoa kahiko.

Makemake nā kānaka ʻepekema E ho'ēmi i ka nui o ka mea hoʻokaʻawale i ka pae aʻe a hoʻololi i ka pahu alumini ma luna o ka electrode me nā mea kalapona. Manaʻo ʻia, mahalo i kēia mau hoʻomaikaʻi, hiki lākou i ke kiʻekiʻe o 0,075 kWh / kg a me 75 GPa.... A inā ʻoi aku ke kumukūʻai o kēia mau kelepona no ka hoʻohana ʻana i nā kaʻa, hiki iā lākou ke hana maikaʻi, no ka laʻana, i ka mokulele.

ʻO ka kaʻa mua me kahi loulou constructive ka BYD Han Kina. I kēia makahiki e ʻike ʻia lākou ma BYD Tang (2021), ʻo Mercedes EQS a i ʻole Tesla Model Y, i hana ʻia ma Kelemānia a hoʻokumu ʻia ma nā mea 4680.

Launchpad: Chalmers Unviersity Prototype Structure Cell (c)