Uphononongo lufumana isitshixo sokuphucula ubomi bebhetri: Ukusebenzisana phakathi kwamasuntswana

Ngokweengxelo zeendaba zangaphandle, uFeng Lin, unjingalwazi onxulumene neSebe leKhemistry eVirginia Tech College yeSayensi, kunye neqela lakhe lophando lafumanisa ukuba ukubola kwebhetri kwangethuba kubonakala kuqhutywa ziipropathi zamasuntswana e-electrode, kodwa emva kweentlawulo ezininzi. Emva kwe-loping, indlela loo masuntswana adibana ngayo ibaluleke ngakumbi.

"Olu phononongo lutyhila iimfihlo zendlela yokuyila kunye nokwenza ii-electrode zebhetri kubomi obude bebhetri," utshilo uLin. Okwangoku, ilebhu kaLin isebenza ekuhleni ngokutsha kwee-electrode zebhetri ukwenza ukutshaja okukhawulezayo, okunexabiso eliphantsi, ubomi obude kunye nolwakhiwo lwe-electrode oluhambelana nokusingqongileyo.

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Uphononongo lufumana isitshixo sokuphucula ubomi bebhetri: Ukusebenzisana phakathi kwamasuntswana
GasgooLiu Liting5小时前
Ngokweengxelo zeendaba zangaphandle, uFeng Lin, unjingalwazi onxulumene neSebe leKhemistry eVirginia Tech College yeSayensi, kunye neqela lakhe lophando lafumanisa ukuba ukubola kwebhetri kwangethuba kubonakala kuqhutywa ziipropathi zamasuntswana e-electrode, kodwa emva kweentlawulo ezininzi. Emva kwe-loping, indlela loo masuntswana adibana ngayo ibaluleke ngakumbi.

"Olu phononongo lutyhila iimfihlo zendlela yokuyila kunye nokwenza ii-electrode zebhetri kubomi obude bebhetri," utshilo uLin. Okwangoku, ilebhu kaLin isebenza ekuhleni ngokutsha kwee-electrode zebhetri ukwenza ukutshaja okukhawulezayo, okunexabiso eliphantsi, ubomi obude kunye nolwakhiwo lwe-electrode oluhambelana nokusingqongileyo.

Umthombo womfanekiso: Feng Lin

"Xa i-architecture ye-electrode ivumela i-particle nganye ukuba iphendule ngokukhawuleza kwiimpawu zombane, siya kuba nebhokisi yesixhobo esikhulu sokuhlawula ngokukhawuleza iibhetri," kusho uLin. “Siyavuya ukwenza ukuba sikwazi ukuqonda isizukulwana esilandelayo seebhetri ezitshaja ngokukhawuleza ngexabiso eliphantsi. ”

Uphando lwenziwe ngokubambisana neSebe le-US le-Energy ye-SLAC National Accelerator Laboratory, iYunivesithi yasePurdue kunye ne-European Synchrotron Radiation Facility. UZhengrui Xu kunye noDong Ho, oogxa bangemva kobugqirha kwilebhu kaLin, bakwangababhali abasebenzisanayo ephepheni, bekhokela ukwenziwa kwe-electrode, ukwenziwa kwebhetri, kunye nemilinganiselo yokusebenza kwebhetri, kunye nokunceda ngovavanyo lweX-reyi kunye nohlalutyo lwedatha.

"Iibhloko zokwakha ezisisiseko zezi ziqhekeza ezenza i-electrode yebhetri, kodwa xa zinyuswa, ezi ngqungquthela zisebenzisana kunye," kusho isazi se-SLAC uYijin Liu, umfo waseStanford Synchrotron Radiation Light Source (SSRL). "Ukuba ufuna ukwenza iibhetri ezingcono, kufuneka wazi indlela yokuhlanganisa amasuntswana."

Njengenxalenye yophononongo, uLin, uLiu kunye nabanye oogxa basebenzise ubuchule bombono wekhompyuter ukuze bafunde indlela amasuntswana azimeleyo awenza i-electrodes yeebhetri ezitshajwayo zidiliza ngokuhamba kwexesha. Injongo ngeli xesha kukufunda hayi nje amasuntswana ngamanye, kodwa neendlela asebenzisana ngazo ukwandisa okanye ukunciphisa ubomi bebhetri. Eyona njongo iphambili kukufunda iindlela ezintsha zokwandisa ubomi boyilo lwebhetri.

Njengenxalenye yesifundo, iqela lifunde i-cathode yebhetri nge-X-rays. Basebenzisa i-X-ray tomography ukwakha kwakhona umfanekiso we-3D wecathode yebhetri emva kwemijikelo eyahlukeneyo yokutshaja. Emva koko banqumle le mifanekiso ye-3D kuluhlu lwezilayi ze-2D kwaye basebenzisa iindlela zombono wekhompyutha ukuchonga amasuntswana. Ukongeza kuLin kunye noLiu, uphononongo lubandakanya umphandi we-SSRL osemva kobugqirha uJizhou Li, unjingalwazi wezobunjineli kwiYunivesithi yasePurdue uKeije Zhao, kunye nomfundi ophumelele kwiYunivesithi yasePurdue uNikhil Sharma.

Abaphandi ekugqibeleni bachonge ngaphezu kwama-2,000 amaqhekeza ngamanye, ukubala kungekuphela nje iimpawu zomntu ngamnye ezifana nobukhulu, imilo, kunye nobunzima bomhlaba, kodwa kunye neempawu ezifana nokuba kaninzi kangakanani amaqhekeza aye adibana ngokuthe ngqo kunye nokuba angakanani amasuntswana atshintshe imilo.

Emva koko, bajonga indlela ipropati nganye eyenza ngayo ukuba iinqununu ziphule, kwaye zafumanisa ukuba emva kwemijikelezo ye-10 yokutshaja, eyona nto inkulu yayiyimpawu zengqungquthela nganye, kubandakanywa nendlela iinqununu ezijikeleza ngayo kunye nomlinganiselo womthamo we-particle ukuya kwindawo ephezulu. Emva kwemijikelo engama-50, nangona kunjalo, ukudibanisa kunye neempawu zeqela zaqhubela ukubola kwamasuntswana-njengokuba kude kangakanani amasuntswana amabini, ukuba imilo etshintshileyo kangakanani, kunye nokuba amasuntswana amile okwebhola ekhatywayo ayeneendlela ezifanayo.

"Isizathu asisekho nje i-particle ngokwayo, kodwa i-particle-particle interaction," kusho uLiu. Oku kufunyanisiweyo kubalulekile kuba kuthetha ukuba abavelisi banokuphuhlisa ubuchule bokulawula ezi zakhiwo. Umzekelo, basenokukwazi ukusebenzisa imagnethi okanye imimandla yombane Ukulungelelanisa amasuntswana amade omnye komnye, iziphumo zamva nje zibonisa ukuba oku kuyakwandisa ubomi bebhetri.

U-Lin wongeze wathi: “Siphanda ngamandla ukwenza iibhetri ze-EV zisebenze ngokufanelekileyo phantsi kokutshaja okukhawulezayo kunye neemeko zobushushu obuphantsi. Ukongeza ekuyileni imathiriyeli emitsha enokunciphisa iindleko zebhetri ngokusebenzisa imathiriyeli ekrwada enexabiso eliphantsi kwaye ininzi kakhulu, ilabhoratri yethu Kukwakho nomzamo oqhubekayo wokuqonda ukuziphatha kwebhetri kude ne-equilibrium. Sesiqalisile ukufunda imathiriyeli yebhetri kunye nendlela abasabela ngayo kwiimeko ezinzima. ”