Lub hauv paus ntawm lub zog tshiab: Nyeem cov kev txhim kho thiab cov hauv paus ntsiab lus ntawm lithium roj teeb

Cov roj teeb lithium yog ib hom roj teeb uas siv tau uas nws cov tshuaj tiv thaiv electrochemical yog raws li kev tsiv teb tsaws ntawm lithium ions ntawm qhov zoo thiab tsis zoo electrodes. Cov roj teeb lithium muaj qhov zoo ntawm lub zog siab ceev, lub neej ntev thiab qis tus kheej tawm tus nqi, yog li lawv tau siv dav hauv ntau yam khoom siv hluav taws xob thiab hluav taws xob tsheb.

Lub hauv paus ntsiab lus ua haujlwm ntawm lithium roj teeb yog ua raws li kev tsiv teb tsaws ntawm lithium ions ntawm qhov zoo thiab tsis zoo electrodes. Thaum lub sij hawm them nyiaj, lithium ions raug tso tawm los ntawm cov khoom zoo (feem ntau yog ib qho oxide xws li lithium cobaltate), dhau los ntawm electrolyte, thiab tom qab ntawd muab tso rau hauv cov khoom tsis zoo (feem ntau yog cov khoom siv carbon). Thaum lub sij hawm tso tawm, lithium ions raug cais tawm ntawm cov khoom tsis zoo thiab txav mus los ntawm cov khoom siv electrolyte mus rau cov khoom zoo, ua kom muaj zog tam sim no thiab hluav taws xob, uas ua rau cov khoom siv sab nraud ua haujlwm.

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lithium roj teeb tuaj yeem yooj yim rau hauv cov kauj ruam hauv qab no:

1. Thaum lub sij hawm them nqi, qhov tsis zoo electrode ntawm lithium roj teeb yuav nqus cov hluav taws xob sab nraud. Txhawm rau kom tsis txhob muaj hluav taws xob tsis zoo, cov hluav taws xob zoo yuav raug yuam kom tso cov hluav taws xob tawm mus rau sab nraud, thiab cov lithium ions uas tau poob hluav taws xob yuav raug nyiam mus rau qhov tsis zoo electrode thiab txav los ntawm electrolyte mus rau qhov tsis zoo electrode. Nyob rau hauv txoj kev no, qhov tsis zoo electrode replenishes electrons thiab khaws cov lithium ions.

2. Thaum tso tawm, cov hluav taws xob rov qab mus rau qhov zoo electrode los ntawm cov hluav taws xob sab nraud, thiab cov lithium ions kuj raug tshem tawm los ntawm cov khoom siv hluav taws xob tsis zoo, tso tawm cov khoom siv hluav taws xob khaws cia hauv cov txheej txheem, thiab rov qab mus rau qhov zoo electrode los ntawm electrolyte, thiab cov electrons tau ua ke los koom nrog hauv kev txo cov tshuaj tiv thaiv los kho cov qauv ntawm lithium compound.

3. Nyob rau hauv tus txheej txheem ntawm kev them nqi thiab tawm, qhov tseeb, nws yog cov txheej txheem ntawm lithium ions chasing electrons, thaum lub sij hawm cia thiab tso tawm ntawm hluav taws xob lub zog yog tiav.

Txoj kev loj hlob ntawm lithium roj teeb tau dhau los ntawm ntau theem. Thaum xyoo 1970s, cov roj teeb lithium hlau tau pib ua ntej, tab sis vim muaj kev ua haujlwm siab thiab teeb meem kev nyab xeeb ntawm lithium hlau, lawv daim ntawv thov tau txwv. Tom qab ntawd, cov roj teeb lithium-ion tau dhau los ua cov thev naus laus zis thev naus laus zis, uas siv cov khoom siv tsis yog xim hlau lithium ua cov khoom siv hluav taws xob zoo los daws cov teeb meem kev nyab xeeb ntawm cov roj teeb lithium hlau. Nyob rau xyoo 1990, cov roj teeb lithium polymer tau tshwm sim, siv cov polymer gels ua electrolytes, txhim kho kev nyab xeeb thiab lub zog ceev ntawm cov roj teeb. Nyob rau hauv xyoo tas los no, tshiab lithium roj teeb technologies xws li lithium-sulfur batteries thiab solid-state lithium roj teeb kuj tau tsim.

Tam sim no, cov roj teeb lithium-ion tseem yog cov siv ntau tshaj plaws thiab cov cuab yeej siv roj teeb uas paub tab. Nws muaj lub zog siab ceev, lub neej ntev ntev thiab cov kev tawm tsam tus kheej qis, thiab yog siv dav hauv lub xov tooj ntawm tes, sau cov khoos phis tawm, cov tsheb hluav taws xob thiab lwm thaj chaw. Tsis tas li ntawd, cov roj teeb lithium polymer kuj tau siv dav hauv cov teb xws li cov khoom siv nyias thiab lub teeb thiab lub mloog pob ntseg wireless, vim lawv lub zog siab ceev thiab nyias tsim cov yam ntxwv.

Tuam Tshoj tau ua tau zoo heev hauv kev lag luam roj teeb lithium. Tuam Tshoj yog ib lub ntiaj teb cov neeg tsim khoom loj tshaj plaws thiab cov neeg siv khoom ntawm lithium roj teeb. Tuam Tshoj lub lithium roj teeb kev lag luam saw tau ua tiav, los ntawm cov khoom siv raw khoom mus rau kev tsim roj teeb muaj qee qhov teev thiab kev siv zog. Tuam Tshoj cov tuam txhab roj teeb lithium tau ua qhov tseem ceeb hauv kev tshawb fawb thiab kev tsim kho tshuab, kev tsim muaj peev xwm thiab kev ua lag luam. Tsis tas li ntawd, tsoomfwv Suav tseem tau tshaj tawm txoj cai txhawb nqa los txhawb kev txhim kho thiab kev tsim kho tshiab ntawm kev lag luam roj teeb lithium. Cov roj teeb lithium tau dhau los ua lub zog loj hauv cov cheeb tsam xws li cov khoom siv hluav taws xob thiab hluav taws xob tsheb.