Dab tsi zoo dua: Lub roj teeb lithium lossis roj teeb muaj peev xwm?

Ib tug neeg hauv peb pab neeg muag khoom tau xa kuv cov lus nug no rau lub lim tiam dhau los. Cov neeg ua haujlwm muag khoom pheej nug nws, yog li peb yuav tsum tau hais ncaj qha rau nws.

"Lithium" yog chemistry. "High peev xwm" yog qhov loj. Lub roj teeb tuaj yeem yog ob qho tib si - feem ntau ntawm qhov zoo yog. Tab sis kuv paub tias vim li cas cov lus nug no pheej tuaj. Koj tab tom saib cov lus hais, ib tug hais tias "lithium 500Ah" ntawm $ 15,000, lwm tus hais tias "muaj peev xwm 1000Ah" ntawm $ 8,000. Qhov thib ob zoo li ob zaug lub roj teeb rau ib nrab ntawm tus nqi.

Tsis yog. Yog tias koj yuav raws li qhov kev xav ntawd, koj yuav pom tias yog vim li cas hauv li 8 lub hlis thaum koj yuav khoom hloov pauv.

What Is Better: A Lithium Battery Or High Capacity Battery?

Tus lej Muaj Peev Xwm nyob ntawm daim ntawv lo

Kuv tau zaum dhau los ntawm ntau lub rooj sib tham uas ib tus neeg rub tawm daim ntawv spec thiab taw qhia ntawm Ah qhov ntsuas zoo li nws daws qhov kev sib cav.

Lead-acid tsis tuaj yeem xa cov peev txheej yam tsis tau rhuav tshem nws tus kheej . 50% qhov tob ntawm kev tso tawm yog qhov kev txwv yog tias koj xav tau lub neej tsim nyog. Koj 1000Ah lead-acid pob muab rau koj 500Ah. LFP khiav 80-90% DOD niaj hnub-ib pob 500Ah xa 400-450Ah txhua hnub rau 8-10 xyoo.

Peb retrofitted lub tsev khaws khoom khov hauv Guangdong xyoo tas los . 800Ah lead- kua qaub ntawm cov tsheb thauj khoom, 3 teev khiav ntawm -18℃ua ntej sib pauv. Peb muab tso rau hauv 600Ah LFP nrog cua sov . 6.5 teev. Tib tsheb thauj khoom, tib txoj kev. Daim ntawv teev npe poob qis 25%, lub zog siv tau tiag tiag yuav luag ob npaug.

Txias ua rau nws hnyav dua. Tuam Tshoj Roj Teeb Kev Lag Luam Association (cbea.com) tau sim qhov no -LFP tuav 67% muaj peev xwm ntawm -20℃, lead-acid poob rau 40-50%. Muab tso rau sab saum toj ntawm qhov tso tawm txwv thiab koj "muaj peev xwm" cov kua qaub ua rau koj 20-25% ntawm daim ntawv lo hais.

Capacity Retention at Low Temperatures

Lwm Lub Taub Hau Taub Hau

Ob lub lithium pob, tib qauv, tib lub peev xwm ntsuas. Koj sim lawv. Pob A ntsuas 660 mAh. Pob B ntsuas 605 mAh.

Khiav lawv rau 50-100 cycles. Pob A poob rau 580mAh thiab poob. Pob B tuav ntawm 590mAh.

Pob A muaj cov khoom siv hluav taws xob ntxiv uas txhawb nqa tus lej pib tab sis cuam tshuam ntev - lub sijhawm ruaj khov. Kev coj ua, tshwj xeeb tshaj yog los ntawm cov neeg muag khoom sib tw ntawm tus nqi.

Yuav ua li cas ntes nws:

nug rau cov ntaub ntawv lub neej voj voog ntawm koj qhov tob ntawm qhov tso tawm, tsis yog lawv li. Lawv hais 3000 cycles ntawm 50% DOD. Koj siv 80% txhua hnub. Tus lej ntawd yog dab tsi?

Ib qho kev ntsuas los ntawm ib tus kws tshaj lij hauv Shenzhen- tom qab 2 xyoos, qhov sib txawv ntawm tes yuav tsum nyob qis dua 30mV. Qhov dav dua qhov ntawd txhais tau hais tias tsis zoo ntawm tes sib txuam lossis tsis txaus BMS ntsuas.

LFP vs NMC vs LTO

NMC muaj zog ceev dua . 150-250 Wh/kg piv rau 90-160 rau LFP.

LFP (Lithium Hlau Phosphate)

Thermal Runaway:~ 270 degree

Lub neej voj voog:2000-4000

NMC (Nickel Manganese Cobalt)

Thermal Runaway:~ 210 degree

Lub neej voj voog:1000-1500

Qhov ntawd 60-degree sib txawv yog vim li cas German forklift manufacturers tsiv tawm ntawm NMC. Ib qho kev tshuaj xyuas los ntawm gabelstapler-mittendorf.com-NMC hlwb muaj kev pheej hmoo tawg ntawm kev nkag mus lossis overheating uas LFP tsis muaj. NMC lub neej voj voog khiav 1000-1500. LFP ua 2000-4000.

LTO yog qhov zam . 10, 000+ cycles, tsub nqi hauv 10 feeb, ua haujlwm rau -40℃. Komatsu thiab Toyota L&F siv nyob rau hauv Nyiv rau txias saw. Tab sis $150-200/kWh piv rau $70-100 rau LFP. Tsuas yog ua rau kev txiav txim siab yog tias them nyiaj poob haujlwm tsis tuaj yeem lees txais.

Rau 90% ntawm kev siv forklift: LFP. Yog tias ib tug neeg thawb NMC rau kev tuav cov khoom, nug lawv vim li cas.

Nyiaj Part

LFP tsis pheej yig dua ua ntej. 48V pob khiav $14,000-18,000. Lead-acid yog $6,000-9,000.

Tab sis ntau-hloov lead-acid txhais tau tias 3 lub roj teeb rau ib lub tsheb. Qhov ntawd yog $18,000-27,000 hauv roj teeb, ntxiv rau chav roj teeb, qhov cua, hoist, sib pauv zog.

LFP: ib lub roj teeb. Lub sijhawm them nyiaj thaum so. Tsis muaj kev sib pauv infrastructure.

Lead-Acid (multi-shift) vs. LFP

Kev Them Nyiaj: 18-28 lub hlis.

Total Cost of Ownership Projection (USD)

Texas 3PL rooj plaub, 50- tsheb thauj khoom-$ 2.9 lab nyiaj khaws cia tshaj 8 xyoo, them rov qab thaum lub hli 31 (ugowork.com). Kev yeej loj tshaj plaws tsis yog lub zog. Nws tau tshem tawm 15-20 feeb rau kev sib pauv.

Cov chij liab

Tsis muaj cov ntaub ntawv xovtooj ntawm tes.

Yog tias lawv yuav tsis qhia koj tias cov cell tuaj qhov twg, xav tias lawv tsis xav kom koj paub.

BMS specs vague.

Feem ntau tsis ua hauj lwm- feem ntau cuam tshuam. Yog tias lawv tsis tuaj yeem piav qhia lub xov tooj ntawm tes - qib kev soj ntsuam, kev tiv thaiv qhov kub thiab txias, qis -temp charge lockout- lawv yuav qhov pheej yig tshaj.

Warranty tsis suav nrog koj cov ntaub ntawv siv.

Txias cia? Fast charging? Nyeem cov kev zam. Kuv tau pom kev lees paub tsis muaj dab tsi hauv qab 0 degree. Hauv kev siv cov saw hlau txias.

Lub peev xwm ntsuas ntawm C / 20 thaum koj rub C / 5.

100Ah ntawm 5-amp kos tsis yog 100Ah ntawm 20-amp kos. Nws tuaj yeem yog 80 Ah lossis tsawg dua.

Daim ntawv thov sib txuam

Standard warehouse, multi-hloov: LFP, qhov loj me rau kev hloov pauv nrog 15-20% npoo.
Txias cia: LFP nrog cov cua sov ua ke, IP67 enclosure. BMS yuav tsum muaj qhov qis qis -temp charge lockout-them qis dua 0℃ua rau lithium plating puas.
24/7 uas tsis muaj qhov rais them nyiaj: LTO yog tias peev nyiaj tso cai.
Backup/standby nyob rau hauv 100-150 cycles/xyoo: Lead-acid kuj tseem ua haujlwm yog tias qhov chaw tsis txwv.

Teb

Rau kev lag luamKev tuav cov khoom siv khiav ntau yam hloov pauv -LFP, qhov loj me rau koj txoj haujlwm. Tsis yog vim nws yog trendy. Lub neej kev khwv nyiaj txiag tam sim no txiav txim siab rau nws qhov kev pom zoo.

The Answer

CATL thiab BYD tuav ntau dua 55% ntawm lub ntiaj teb lithium roj teeb tsim. LFP yog ntu kev loj hlob (SNE Kev Tshawb Fawb ntawm cnevpost.com, 2024). Lead-acid ua rau kev txiav txim siab thaum lithium raug nqi 5x ntxiv. Tsis yog lawm.

Yog tias koj tseem tab tom yuav cov hmoov lead-acid rau siab- cov khoom siv, koj tab tom ua kom zoo rau tus lej tsis raug.

Cov lus nug tshwj xeeb ntawm cov kab mob khaub thuas, siab - voj voog, lossis rov ua kom zoo sib xws -peb tuaj yeem khiav cov lej nrog koj qhov kev ua haujlwm tsis zoo.