Abantwana abanenkathalo banokuqaphela ukuba zombini umbane ophathwayo kunye nelaptop inebhetri eyi-5000mAh, kodwa le yokugqibela inkulu kakhulu kuneyangaphambili.

Ngoko umbuzo ngulo: Zizo zonke iibhetri ze-lithium, kodwa kutheni iibhetri ezifanayo zihluke ngoku kude? Kuyavela ukuba nangona zombini, kodwa ukuqwalaselwa ngenyameko, i-voltages V kunye ne-Wh yeebhetri ezimbini phambi kwe-mAh zahlukile.

Yintoni umahluko phakathi kwe-mAh kunye ne-Wh?

Iyure ye-Milliampere (iyure ye-milliampere) yiyunithi yombane, kwaye i-Wh yiyunithi yamandla.

Ezi ngqiqo zimbini zahlukile, ifomula yokuguqula ithi: Wh=mAh×V(voltage)&Pide;1000.

Ngokukodwa, iiyure ze-milliampere zinokuqondwa njengenani elipheleleyo lee-electron (inani lee-electron ezidlulayo kwi-current ye-1000 milliampere-iiyure). Kodwa ukubala amandla ewonke, kufuneka sibale amandla e-electron nganye.

Masithi sine-1000 milliamperes yee-electron, kwaye i-voltage ye-electron nganye yi-volts ezi-2, ngoko sineeyure ezi-4 ze-watt. Ukuba i-electron nganye yi-1v kuphela, sine-watt yeyure enye kuphela yamandla.

Ngokucacileyo, ingakanani ipetroli endiyithandayo, njengelitha enye; I-Wh ibhekisa kwindlela enokuhamba ngayo ilitha enye yepetroli. Ukubala ukuba ingakanani ilitha yeoli inokuhamba, kufuneka siqale sibale ukufuduswa. Kule meko, ukufuduka kweV.

Ngoko ke, umthamo weentlobo ezahlukeneyo zezixhobo (ngenxa yokwahlukana kwamandla ombane) ngokuqhelekileyo awunakulinganiswa. Iibhetri zeLaptop zibukeka zikhulu kwaye zinamandla ngakumbi, kodwa zenza umsebenzi omninzi kuneebhetri eziphathwayo ngaxeshanye, kwaye azihlali ixesha elide kunemithombo yamandla ephathwayo.

Kutheni le nto iiarhente zisebenzisa i-Wh endaweni ye-mAh njengomda?

Abantu abasoloko bebhabha ngenqwelomoya banokwazi ukuba i-Civil Aviation Administration inale migaqo ilandelayo kwiibhetri ze-lithium:

Isixhobo sombane esiphathwayo esinomthamo webhetri ye-lithium engadlulanga kwi-100Wh siyakhwela, kwaye asinakufihlwa kwimithwalo kunye neposi. Amandla ebhetri ewonke azo zonke izixhobo zombane ezithwalwa ngabakhweli akayi kuba ngaphezu kwe-100Wh. Iibhetri zeLithium ezingaphezu kwe-100Wh kodwa zingagqithi kwi-160Wh zifuna imvume yenqwelo-moya yokuposa. Iibhetri zeLithium ezingaphezu kwe-160Wh aziyi kuthwalwa okanye zithunyelwe.

Akufuneki sibuze kuphela, kutheni i-FAA ingasebenzisi iiyure zemiliampere njengeyunithi yomlinganiselo?

Ukuqwalasela ukuba ibhetri inokudubula, ubuninzi bokusetyenziswa kokuqhuma kuhambelana ngokuthe ngqo nobukhulu bamandla (Wh yiyunithi yamandla), ngoko ke iyunithi yamandla kufuneka ichazwe njengomda. Ngokomzekelo, ibhetri ye-1000mAh incinci kakhulu, kodwa ukuba i-voltage yebhetri ifikelela kwi-200V, ngoko ineeyure ezingama-200 zamandla.

Kutheni iifowuni eziphathwayo zisebenzisa iiyure zemiliampere endaweni yeewatt-yure ukuchaza iibhetri ze-lithium ze-18650?

Iiseli zebhetri ze-lithium zefowuni zibaluleke kakhulu, kuba abantu abaninzi abayiqondi ingcamango yeeyure ze-watt. Esinye isizathu kukuba i-90% yeebhetri ze-lithium zefowuni zi-3.7V iibhetri ze-polymer. Akukho ndibaniselwano yochungechunge kunye nokuhambelana phakathi kweebhetri. Ke ngoko, amandla okubonisa ngokuthe ngqo awayi kubangela iimpazamo ezininzi.

Enye i-10% isebenzise i-polymer ye-3.8 V. Nangona kukho umahluko wombane, kukho umahluko kuphela phakathi kwe-3.7 kunye ne-3.8. Ke ngoko, kulungile ukusebenzisa inkcazo yebhetri ye-mAh kwintengiso yefowuni ephathwayo.

Yintoni umthamo webhetri yeelaptops, iikhamera zedijithali, njl.?

Amandla ombane ebhetri ahlukile, ngoko ke aphawulwe ngokucacileyo ngeewatt-yure: iilaptops ezinesiphelo esisezantsi zinoluhlu lwamandla malunga ne-30-40 watt-yure, iilaptops eziphakathi zinoluhlu lwamandla malunga ne-60 watt-yure, kwaye ephezulu. iibhetri zokuphela zinoluhlu lwamandla angama-80. -100 watt-iiyure. Uluhlu lwamandla ekhamera yedijithali yi-6 ukuya kwii-watt-yure ze-15, kwaye iiselfowuni zihlala ziyi-10 watt-yure.

Ngale ndlela, ungasebenzisa iilaptops (iiyure ezingama-60), iifowuni eziphathwayo (iiyure ezili-watt ezili-10) kunye neekhamera zedijithali (iiyure ezingama-30) ukubhabha kufutshane nomda.