Cov txheej txheem:
Video: Cov khoom dab tsi ua rau lithium siv tau hauv cov roj teeb?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Siv thiab khoom
Ib tug mos, silvery hlau. Nws muaj qhov tsawg tshaj plaws ntawm tag nrho cov hlau. Nws reacts vigorously nrog dej. Qhov tseem ceeb tshaj plaws ntawm kev siv lithium yog nyob rau hauv rechargeable roj teeb rau cov xov tooj ntawm tes, laptops, digital koob yees duab thiab hluav taws xob tsheb.
Ib yam li ntawd, koj tuaj yeem nug, cov khoom dab tsi ua rau lithium txaus ntshai?
Tshuaj khoom Yog li, lithium , uas ntab rau hauv dej, muaj zog heev nrog nws thiab tsim cov tshuaj hydroxide muaj zog, yielding lithium hydroxide (LiOH) thiab hydrogen gas. Lithium yog tib qho alkali hlau uas tsis tsim cov anion, Li−, nyob rau hauv kev daws los yog nyob rau hauv lub xeev khoom.
Dab tsi yog ob yam tshuaj lom neeg ntawm lithium? Lithium muaj qhov melting point ntawm 180.54 C, boiling point ntawm 1342 C, ib tug tshwj xeeb lub ntiajteb txawj nqus ntawm 0.534 (20 C), thiab ib tug valence ntawm 1. Nws yog lub lightest ntawm cov hlau, nrog ib tug valence ntawm 1. ceev kwv yees li ib nrab ntawm cov dej.
Tsis tas li ntawd, cov khoom lithium muaj dab tsi?
Lub cev Cov khoom siv lithium yog ib tug heev mos, silvery hlau. Nws muaj melting point ntawm 180.54 ° C (356.97 ° F) thiab boiling point ntawm 1,335 ° C (2, 435 ° F). Nws qhov ceev yog 0.534 grams ib cubic centimeter. Los ntawm kev sib piv, qhov ceev ntawm cov dej yog 1.000 grams ib cubic centimeter.
Dab tsi yog 3 siv rau lithium?
Ob leeg lithium hlau thiab nws cov tebchaw muaj ntau yam siv
- lithium stearate yog tov nrog roj los ua kom tag nrho cov hom phiaj thiab kub-kub lubricants.
- lithium hydroxide yog siv los nqus cov pa roj carbon dioxide hauv qhov chaw tsheb.
- lithium alloyed nrog txhuas, tooj liab, manganese, thiab cadmium los ua kom muaj txiaj ntsig zoo rau cov dav hlau.
Pom zoo:
Dab tsi yog Tus Nqi Siv Khoom Siv rau Cov Nyiaj Tau Los Hauv Nroog thiab Cov Neeg Ua Haujlwm Clerical?
Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) yog ib qho kev ntsuas txhua hli ntawm qhov kev hloov pauv nruab nrab ntawm lub sij hawm ntawm cov nqi them los ntawm cov neeg khwv tau nyiaj hauv nroog thiab cov neeg ua haujlwm rau cov neeg ua haujlwm rau lub khw muag khoom ntawm cov khoom siv thiab cov kev pabcuam
Dab tsi ua rau cov roj teeb lithium ion poob?
Thaum lub sij hawm them, lithium gravitates rau graphite anode (tsis zoo electrode) thiab qhov voltage yuav hloov. Dahn hais tias qhov hluav taws xob siab tshaj 4.10V / cell ntawm qhov kub siab ua rau qhov no, qhov kev ploj tuag uas tuaj yeem ua rau muaj kev phom sij ntau dua li kev caij tsheb kauj vab. Lub roj teeb nyob ntev dua nyob rau hauv cov xwm txheej no, qhov kev degradation zuj zus tuaj
Dab tsi yog qhov txawv ntawm cov khoom siv thiab cov khoom siv hauv kev lag luam?
Qhov ntau muab yog tus nqi ntawm qhov zoo / kev pabcuam uas tus neeg tsim khoom txaus siab muag ntawm tus nqi muab. Cov khoom siv yog qhov kev sib raug zoo ntawm tus nqi thiab cov khoom siv
Dab tsi yog cov cuab yeej lossis cov txheej txheem siv los hloov cov ntaub ntawv kev ua haujlwm rau hauv cov ntaub ntawv kev ua haujlwm hauv cov txheej txheem tswj Scope?
Variance Analysis yog ib qho cuab yeej & Cov txheej txheem ntawm Kev Tswj Scope Txheej Txheem thiab Kev Ntsuas Kev Ua Haujlwm Ua Haujlwm (WPM) yog qhov tso tawm ntawm cov txheej txheem no
Dab tsi yog qee qhov chaw ntawm cov ntaub ntawv uas tus neeg siv khoom siv tau thaum tshawb fawb txog cov khoom?
Hauv qab no yog tsib lub peev txheej uas koj tuaj yeem siv los ua kev tshawb nrhiav kev lag luam nrog cov ntsiab lus ntawm cov ntaub ntawv lawv muab. Census.gov. Cov ntaub ntawv suav pej xeem, uas Tsoom Fwv Teb Chaws Asmeskas khaws txhua kaum xyoo, muaj nyob rau hauv online, searchabledatabase. USA.gov. Koom Haum Lag Luam Me (SBA.gov) FocusGroup.com. SurveyMonkey.com