Njengesikhathi sokuthi uxhaso lwezimoto ezintsha zezwe lami zehle ngokuphelele, i-LG Chem, i-Samsung SDI, i-Panasonic namanye ama-battery anamandla aphesheya kwe-lithium-ion aqongelela amandla awo ngasese, ahlose ukusizakala ngenzuzo eholayo ukuze athole okungeyona okuzayo okuzayo. imakethe yomxhaso.

Enye yezinzuzo zabo eziyinhloko ucwaningo lobuchwepheshe bebhethri kanye nenzuzo yentuthuko eholela ekuthuthukisweni kwemboni yebhethri ye-lithium-ion yamandla omhlaba.

➤LG Chem: Ucwaningo oluyisisekelo + ukutshalwa kwezimali okuphezulu okuqhubekayo

I-LG Chem ibambisana nama-OEM amboza izinhlobo eziningi zomhlaba ezifana ne-American, Japanese, kanye namaKorea. Inezinzuzo ezijulile zocwaningo emkhakheni wezinto eziyisisekelo, futhi ngesikhathi esifanayo ibheka “Isikhungo Sokuthuthukiswa Kwebhethri Lezimoto” njengenhlangano ezimele eyingxenye yebhizinisi lebhethri, njengoba kuboniswe esithombeni esilandelayo:

▼ Isakhiwo se-LG Chemical Research Organisation

Ngamashumi eminyaka ezinzuzo ocwaningweni lwezinto ezibonakalayo, i-LG Chem ingethula ubuchwepheshe obuyingqayizivele ezintweni ezinhle nezingezinhle, izihlukanisi, njll., ekwakhiweni komkhiqizo okokuqala ngqa, futhi ibonise ngokuqondile ubuchwepheshe obuyingqayizivele kunqubo yocwaningo nentuthuko yeseli. Ingakwazi ukuhlinzeka ngephothifoliyo yomkhiqizo wonke ehlobene namandla amabhethri e-lithium-ion asuka kuSeli, imojula, i-BMS, nokuthuthukiswa Kwephakethe kuya ekusekelweni kobuchwepheshe.

Ukweseka ucwaningo nokuthuthukiswa kobuchwepheshe be-LG Chem kuwukutshalwa kwezimali okuphezulu okuqhubekayo. Ngokolwazi lwenhlolovo, uxhaso lwe-LG Chem lulonke lwe-R&D kanye nokutshalwa kwezimali kwabasebenzi kuqhubekile nokukhuphuka kusukela ngo-2013. Ngo-2017, ukutshalwa kwezimali kwe-R&D kwafinyelela ku-3.5 billion yuan (RMB), okukleliswe kuqala phakathi kwezinkampani zamabhethri emhlabeni wonke ekutshalweni kwe-R&D ngalowo nyaka.

Izinzuzo zensiza yezinto zokusetshenziswa ezikhuphuka nomfula kanye nekhono elizimele lezixhumanisi zokukhiqiza kunikeza isiqinisekiso esiqinile somzila wephakheji we-LG Chem we-ternary soft onezindleko eziphelele eziphakeme kanye nezinga eliphezulu lobuchwepheshe.

Mayelana nokuthuthukiswa komzila wezobuchwepheshe, i-LG Chem okwamanje isebenza kanzima kusukela kuphakheji elithambile i-NCM622 ukuya ku-NCM712 noma i-NCMA712.

Engxoxweni nabezindaba, i-CFO ye-LG Chemical iveze ukuthi umzila wenkampani wokuthuthukisa impahla yama-electrode usuka ku-622 kuye ku-712 noma ngisho no-811, i-LG inezinhlelo ezihlukene zokumatanisa indlela yephakheji ethambile kanye nendlela ye-cylindrical kanye nokusetshenziswa komfula ongezansi. amamodeli (iphakheji elithambile ngeke lithuthukiswe okwamanje 811 , Futhi i-cylindrical NCM811 okwamanje isebenza kuphela kumabhasi kagesi).

Kodwa-ke, kungakhathaliseki ukuthi i-electrode ephozithivu ye-NCMA noma i-electrode ephozithivu ye-NCM712, uhlelo lokukhiqiza ngobuningi lwe-LG Chem luhlelelwe okungenani iminyaka emibili, olulondoloza kakhulu kunohlelo lomzila we-nickel we-Panasonic.

➤I-Samsung SDI: Ukusebenzisana nezikhungo zocwaningo + ukutshalwa kwezimali okuqhubekayo okunamandla aphezulu

AbakwaSamsung SDI bamukela imodeli yobambiswano efana nekaCATL emkhakheni wocwaningo nentuthuko: ibambisana nezikhungo zocwaningo zasenyuvesi yasekhaya nezangaphandle ukuze kumiswe izindaba ezibalulekile zobuchwepheshe, kuxazululwe ukuthuthukiswa kwezohwebo ndawonye, ​​futhi ngokuhlanganyela kukhuthaze amaphrojekthi ocwaningo ukuze kwakheke ama-synergies.

▼ Ishadi Lenhlangano ye-Samsung SDI

I-Samsung SDI ne-LG Chem zinemizila yezobuchwepheshe eyahlukene. Ikakhulukazi zimise okwesikwele. Ngesikhathi esifanayo, balandela ngenkuthalo ukukhiqizwa kwamabhethri angu-21700. Izinto ze-cathode ikakhulukazi zisebenzisa izinto ze-ternary NCM ne-NCA. Nokho, ukutshalwa kwezimali kwayo ocwaningweni nasekuthuthukisweni nakho kunamandla kakhulu.

Ngokwemininingwane yocwaningo, ukutshalwa kwezimali kwe-R&D ye-Samsung SDI ngo-2014 kufinyelele ezigidini ezingama-620,517 okuwiniwe, okubalelwa ku-7.39% wokuthengisa; Ukutshalwa kwezimali kwe-R&D ngo-2017 bekungamabhiliyoni angama-2.8 amayuan (RMB). Mayelana nezindaba ezibalulekile emkhakheni wamabhethri wesizukulwane esilandelayo nezinto zokwakha, ngokusekela ukuthuthukiswa kwamalungelo obunikazi ahlobene eduze nezindaba, sizohlola amalungelo obunikazi aqhudelanayo futhi sivule izindawo ezintsha zebhizinisi.

Ibhethri leprismatic le-Samsung SDI selifinyelele ezingeni lika-210-230wh/kg ukuminyana kwamandla.

Ngokuka-Wei Wei, iphini likamongameli we-Samsung SDI yezwe lami ku-Electric Vehicle Forum yalo nyaka, abakwaSamsung bazothuthukisa ngamandla isizukulwane sesine semikhiqizo evela ku-cathode material (NCA umzila), i-electrolyte kanye nobuchwepheshe be-anode esikhathini esizayo. Ngemva kokwethula ibhethri lesizukulwane sesine elinomthamo wamandla angu-270-280wh/kg, lihlela ukuqhubeka nokuthuthukisa umkhiqizo wesizukulwane sesihlanu nge-density yamandla ehleliwe engu-300wh/kg ukuya kumzila we-nickel ophezulu.

Indawo yokuthuthukiswa kwesikwele yenkampani iphinde ihlanganise “amabhethri anobude obuphansi” anosayizi othuthukisiwe wemodeli, ukwethulwa kwezinto zokushaja okusheshayo, namaphekhi angasindi wonkana. Ngaphezu kwamabhethri e-prismatic, i-Samsung SDI nayo inokwakheka emkhakheni wamabhethri wesimo esiqinile namabhethri angamacylindrical. Ngo-2017, i-Samsung SDI ibonise amabhethri esimo esiqinile namamojula ebhethri asekelwe kumaseli angama-cylindrical angu-21700 e-North American Auto Show, ekhombisa ikhono lokuthuthuka emizileni eminingi.

Kuhle ukusho ukuthi i-Samsung SDI isekelwa i-R&D eqinile ye-Samsung Group namandla wensiza, futhi inamandla okuhlinzeka ngezixazululo zebhethri ze-lithium-ion zamandla kuwo wonke uchungechunge lwemboni.

➤I-Panasonic: Izinzuzo zangaphakathi zesilinda + esisekela i-Tesla

Ngo-1998, i-Panasonic yaqala ukukhiqizwa okukhulu kwamabhethri e-lithium-ion e-cylindrical kumakhompyutha we-notebook futhi yakha umugqa wokukhiqiza ohamba phambili embonini wamabhethri e-lithium-ion. NgoNovemba 2008, i-Panasonic yamemezela ukuhlangana ne-Sanyo Electric futhi yaba ngumnikezeli omkhulu emhlabeni wonke wamabhethri e-lithium-ion.

Isakhiwo se-Panasonic se-R&D emkhakheni wamabhethri e-lithium-ion amandla sisekelwe ekusebenzisaneni isikhathi eside nemikhiqizo efana ne-Tesla ne-Toyota, igxile ezimakethe zaseJapane nezaseMelika. Isisekelo esiqinile esisiqongelele ebhizinisini lebhethri ye-lithium sandise izinzuzo zemvelo zendlela ye-cylindrical yobuchwepheshe obuvuthiwe nokuvumelana okuphezulu, futhi izuze amandla aphezulu kanye nemodyuli yebhethri yomjikelezo ozinzile efanelekayo amamodeli we-Tesla.

Uma sibheka emuva ezizukulwaneni ezedlule zamabhethri e-Panasonic ahlonyiswe kusukela ku-Roadster kuya ku-Model 3 namuhla, ukuthuthukiswa kwezinga lendlela yobuchwepheshe kugxilwe ekuthuthukisweni kwe-cathode material kanye nobukhulu besilinda.

Ngokuphathelene nezinto ze-cathode, uTesla wasebenzisa i-lithium cobalt oxide cathodes ezinsukwini zokuqala, i-ModelS yaqala ukushintshela ku-NCA, futhi manje ukusetshenziswa kwe-NCA ephezulu ye-nickel ku-Model 3, i-Panasonic ibilokhu ihola imboni ekuthuthukiseni izinto ze-cathode ekuphishekeleni. wokuminyana kwamandla aphezulu.

Ngaphandle kwezinto ezinhle ze-electrode, indlela ye-cylindrical iye yavela kuhlobo lwe-18650 kuya kuhlobo lwe-21700, futhi umkhuba wokufuna umthamo omkhulu kagesi weseli elilodwa nawo uholwa yiPanasonic. Ngenkathi iphromotha ukuthuthukiswa kokusebenza kwebhethri, amabhethri amakhulu anciphisa ubunzima bokuphathwa kwesistimu yephakethe futhi ehlisa izindleko zezingxenye zesakhiwo sensimbi kanye noxhumo lwe-conductive lwamaphakethe webhethri, ngaleyo ndlela ehlise izindleko futhi andise ukuminyana kwamandla.