Chikonzero cheiyo inoshanda musimboti we lithium ion bhatiri uye chikonzero chekudzikisa

著者：Iflowpower – Fornitore di stazioni di energia portatili

Lithium-ion bhatiri ndiro rinomhanyisa bhatiri rechipiri mushure me cadmium uye hydrogen-nickel bhatiri. Vashandisi vanoshandiswa vanofanirwa kuziva vese kuti lithium bhatiri inoderedza huwandu mushure mekushandisa nguva. Ichi chinyorwa chinopfupisa uye chinoongorora zvikonzero zvinogoneka zveiyo inoshanda musimboti welithium ion mabhatiri, uye kugona kwekudzikisa, ndinovimba kukubatsira.

Lithium ion bhatiri basa musimboti Lithium ion bhatiri bhatiri rechipiri (rechargeable bhatiri), iro rinonyanya kuvimba ne lithium ions kufamba pakati pezvakanaka uye zvisina kunaka maelectrode. Munguva yekubhadhara uye kubudiswa kwekuita, Li + inoiswa uye yakasiiwa pakati pemagetsi maviri: Paunenge uchibhadhara, Li + inokwidziridzwa kubva kune yakanaka electrode, uye electrolyte yakaiswa mumagetsi asina kunaka, danda risina kunaka riri mu lithiamu state; kubuda kwacho kwachinja. Lithium bhatiri rinobuda rinobva pane makemikari oxidation maitiro.

Kana kubuda kwapera, ndipo patinoshandisa bhatiri kuti tipedze simba, electrode yayo yakanaka ichaisa lithium ions, negative electrode lithium ions. Kana kuchaja kuri, zvinopesana ndizvo. Ane imwe voltage yekugadzira imwe huwandu hwemagetsi kuitira kuti bhatiri rigadzire magetsi.

Munguva yega yega yekuchaja uye kutenderera kutenderera, lithium ion (Li) inoshanda semutakuri wekubata wesimba remagetsi, kufamba kubva kune yakanaka electrode → negative electrode → iyo yakanaka electrode kubva kune yakanaka uye yakaipa electrode zvinhu, uye inoshandura kemikari nemagetsi simba kune mumwe nemumwe. Kuita kuendesa kubhadharisa, iyi ndiyo musimboti wekutanga we "lithium ion bhatiri". Nekuda kweiyo electrolyte, iyo yekuzviparadzanisa firimu, nezvimwe.

ielectron insulator, saka kutenderera uku hakufambiswe mberi nekudzoka pakati pemapango akanaka neasina kunaka, uye anongotora chikamu mukuita kwemakemikari e electrode. Zvinokonzeresa kuti lithium bhatiri kuwanda kwekudzora ndiyo inokurumidza sekondari bhatiri mushure mecadmium bhatiri uye hydrogen nickel mabhatiri. Kushandiswa kwemabhatiri e-lithium-ion kunonyanya kuenderana nekugadzikana kwayo kwechaji uye kutenderera kutenderera, uye mamwe mabhatiri echipiri, Lithium-ion mabhatiri haadzivisike panguva yekutenderera.

1 Kuumbwa kwezvikamu. Iko kushandurwa kwezvikamu kunogona kutungamira nyore kune shanduko mukufambiswa kwechikamu uye chimiro chechikamu chemuviri. Iyo electrode zvinhu chikamu shanduko inogona kukonzera shanduko mumaparamendi elattice uye kusawirirana kwelatisi, nekudaro kuunza kushushikana kwakakonzera kukonzeresa kupwanya kwezviyo, uye kukonzeresa kupararira, zvichikonzera kukuvadzwa kwemuchina kune chimiro chechinhu, nekudaro zvichikonzera electrochemical performance attenuation.

2. Iyo yakaipa electrode zvinhu zvinowanzoshandiswa mune yakashata electrode zvinhu chimiro icarbon material, lithium titanate, nezvimwewo, bepa rino rinoongorora yakajairika negative graphite.

Iko kuderedzwa kwe lithium bhatiri simba kunoitika kekutanga, muchikamu chino, SEI inoumbwa pamusoro peiyo negative electrode, ichidya chikamu che lithium ions. Sezvo iyo lithium bhatiri inoshandiswa, shanduko mune graphite chimiro inogona zvakare kukonzera kuderera kwebhatiri huwandu. Kunyange zvazvo morphology ye graphite ichichengetwa, hafu ye (002) crystal surface yakakura, zvichiita kuti zviyo zvidiki zvishoma muC-axis direction, uye kuchinja kwekristal structure kunokonzera kuputika mu carbon material, iyo inozovhiringidza pamusoro penzvimbo yakaipa.

Iyo firimu uye inokurudzira kugadziriswa kweiyo SEI firimu, kukura kwakanyanya kweiyo SEI firimu kunoshandisa inoshanda lithium, nekudaro inokonzera iyo isingadzokeri inodzoreredza simba attenuation ye lithium mabhatiri. 3. Iyo electrolyte inonyanya kusanganisira zvikamu zvitatu zve solvent, electrolyte uye additives.

Kuora kweiyo solvent, kuparara kwe electrolytes kunogona kukonzera lithium bhatiri kurasikirwa kwesimba. Kuora uye kudivi kuita kwe electrolyte ndicho chinhu chikuru chelithium bhatiri kugona kudzikisa. Pasinei nezvakanaka uye zvisina kunaka electrode zvinhu, izvo zvinogadzirisa, ne lithium battery circulation, kuparara kwe electrolyte uye kuwirirana pakati pezvakajairwa uye zvisina kunaka electrode zvinhu Kuita kunogona kukonzera kukwanisa kuderedza.

4, iyo positive precision reaction yakadzikira kana iyo positive electrode inoshanda hama neiyo negative electrode inoshanda yakadzikira, zviri nyore kuchaja. Iyo lithium bhatiri yakanaka shanduko yakakonzera kurasikirwa kwesimba zvakanyanya nekuda kwekugadzirwa kwe electrochemical inert zvinhu (senge CO3O4, MN2O3, nezvimwewo), ichiparadza chiyero chesimba pakati pema electrode, uye kurasikirwa kwayo kwesimba hakuchinjiki.

5, electrode kusagadzikana mune yakanaka electrode inoshanda zvinhu kusagadzikana panguva yekuchaja, kuita ne electrolyte reactions. Inobata zvinhu zvisina kugadzikana zveiyo yakanaka electrode zvinhu, kukanganisa kwechimiro cheiyo yakanaka electrode zvinhu, iyo kabhoni dema yemukati, yakawandisa yekuchaja inogona, uko iyo yakanaka electrode zvinhu chimiro chakaremara huremu muzvinhu. Sezvo nzvimbo iripo yebhatiri ye lithium yakaderedzwa, simba rekuzadza rinodzikiswa, uye nguva yekuchaja inopfupikiswa zvishoma nezvishoma.

Muzviitiko zvakawanda, huwandu hwe lithium bhatiri ndeyekuora kwemutsara nekuda kwekutenderera kutenderera uye kuchembera. 6. Iyo yekuchengetera tembiricha yekuchaja uye kutenderera kutenderera haisiriyo chete chikonzero che lithium bhatiri kugona, uye iyo lithium bhatiri mukupisa kwakanyanya kunogonawo kukonzera kugona.

Iyo yakazara-chaji lithium bhatiri inokonzeresa 35% kurasikirwa kwesimba mune ye40 ° C (104 ° F) kwegore rimwechete isina kushandiswa. Super fast charge inokuvadzawo bhatiri, izvo zvinoderedza hupenyu hwebhatiri, izvo zviri pachena kune monomer lithium mabhatiri. Lithium bhatiri paki yakakwira kupfuura simba, asi inonyanya kunyomba nekuda kwekusiyana kwemabhatiri esero.

Lithium bhatiri inoda kazhinji inoverengera kugona kwayo kudzoreredza uye hupenyu hwekupedzisira. Kukwanisa kudzikisira kusvika ku80% kunoda kutsiviwa kwebhatiri mapaketi, uye iyo yekupedzisira muganho welithium bhatiri paki inofanirwa kuchinja zvinoenderana nekushandiswa kwechishandiso, uye zvido zvemushandisi uye vimbiso yekambani.