Lithium bhatiri kurongedza mafomu ane makumbo matatu, kureva, matatu anonyanya kushandiswa silinda, akapfava mapaketi uye masikweya. Iwo matatu mafomu ekurongedza ane zvawo zvakanakira uye zvisingabatsiri, uye anogona kusarudzwa zvinoenderana nekushandiswa kwavo.

1. Cylindrical

Cylindrical lithium battery yakatanga kugadzirwa neSONY company muJapan muna 1992. Nokuti 18650 cylindrical lithium battery ine nhoroondo yakareba, chiyero chekupinda mumusika chakakwirira. Cylindrical lithium bhatiri inotora mature winding process, high degree of automation, uye chigadzirwa mhando Yakagadzikana uye ine mutengo wakaderera. Kune akawanda marudzi emabhatiri ecylindrical lithium, akadai se17490, 14650, 18650, 26650,

21700 etc. Cylindrical lithium mabhatiri anozivikanwa pakati pemakambani e lithium battery muJapan neSouth Korea.

Mabhenefiti ecylindrical winding type anosanganisira mature winding process, high degree of automation, high production performance, good consistency, uye mutengo wakaderera. Izvo zvisingabatsiri zvinosanganisira yakaderera nzvimbo kushandiswa kunokonzerwa necylindrical chimiro uye tembiricha kugoverwa kunokonzerwa nekushomeka kweradial thermal conductivity. Mira. Nekuda kwekushata kweiyo cylindrical yebhatiri yekudziya kwebhatiri, huwandu hwekutenderera kwebhatiri haifanire kuwanda (nhamba yekutenderera inotenderera ye18650 bhatiri inowanzoita makumi maviri anotendeuka), saka iyo monomer idiki, uye huwandu hukuru hwebhatiri hunodiwa pakushandiswa mumotokari dzemagetsi. Monomers inoumba bhatiri module uye bhatiri mapaketi, ayo anowedzera zvakanyanya kurasikirwa kwekubatanidza uye kuoma kwekutonga.

Mufananidzo 1. 18650 cylindrical bhatiri

Iyo yakajairika kambani yecylindrical packaging iPanasonic yekuJapan. Muna 2008, Panasonic naTesla vakabatana kekutanga, uye 18650 lithium cobalt oxide bhatiri yakagamuchirwa neTesla yekutanga modhi Roadster. Muna 2014, Panasonic yakazivisa mubatanidzwa naTesla kuvaka Gigafactory, fekitori yepamusoro bhatiri, uye hukama pakati pevaviri hwakaenda mberi. Panasonic inotenda kuti motokari dzemagetsi dzinofanira kushandisa mabhatiri e18650, kuitira kuti kunyange bhatiri rimwe rikakundikana, hazvizokanganisa kushanda kwehurongwa hwose, sezvinoratidzwa mumufananidzo 2.

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Mufananidzo 2. Sei uchisarudza 18650 cylindrical bateri

Kune zvakare mabhizinesi makuru anogadzira cylindrical lithium mabhatiri muChina. Semuenzaniso, BAK Bhatiri, Jiangsu Zhihang, Tianjin Lishen, Shanghai Delangeng nemamwe mabhizinesi ari munzvimbo inotungamira yecylindrical lithium mabhatiri muChina. Iron-lithium mabhatiri uye Yinlong anokurumidza-kuchaja mabhazi anoshandisa lithium titanate mabhatiri, ese ari muchimiro checylindrical packaging.

Tafura 1: Statistics pane yakaiswa simba repamusoro gumi cylindrical bhatiri makambani uye anoenderana mamodheru maererano nekamwechete simba density muna 10.

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2. Soft bag

Zvinhu zvakakosha zvinoshandiswa mumabhatiri e-soft-pack lithium-positive electrode materials, negative electrode materials uye separators-hazvina kunyanya kusiyana nesimbi-shell uye aluminium-shell lithium mabhatiri. Musiyano mukuru ndeye inochinjika yekurongedza zvinhu (aluminium-plastiki inoumba firimu). Ndiwo akanyanya kuomarara uye nehunyanzvi zvinhu zvakaoma munyoro-pack lithium mabhatiri. Flexible packaging materials anowanzo kupatsanurwa kuita zvidimbu zvitatu, zvinoti, yekunze barrier layer (kazhinji yekunze inodzivirira layer inoumbwa nenylon BOPA kana PET), barrier layer (aluminium foil iri pakati nepakati) nemukati (multifunctional high barrier layer). )

Mufananidzo 3. Aluminium epurasitiki firimu chimiro

Iyo yekurongedza zvinhu uye chimiro chehomwe maseru zvinovapa huwandu hwezvakanakira. 1) Kuita kwekuchengetedza kwakanaka. Iyo yakapfava-pack bhatiri yakaputirwa nealuminium-plastiki firimu muchimiro. Kana dambudziko rekuchengetedza raitika, bhatiri renyoro-pack rinowanzo kuputika nekutsemuka, uye harizoputika. 2) Huremu huremu, huremu hwesoft pack bhatiri ndeye 40% yakareruka pane iyo yesimbi shell lithium bhatiri ine simba rakafanana, uye 20% yakareruka kupfuura iyo yealuminium shell lithium bhatiri. 3) Kupikisa kuduku kwemukati, kupikisa kwemukati kwebheteri yakapfava iduku kudarika iyo yebhatiri ye lithium, iyo inogona kuderedza zvakanyanya kuzvidzora kwebhatiri. 4) Kutenderera kwekuita kwakanaka, hupenyu hwekutenderera kwebheteri yakapfava yakareba, uye kuora mushure memazana zana ndeye 100% kusvika 4% pasi peiyo yealuminium kesi. 7) Dhizaini inochinjika, chimiro chinogona kuchinjika kune chero chimiro, chinogona kutetepa, uye masero matsva emhando anogona kugadzirwa zvinoenderana nezvinodiwa nevatengi. Izvo zvisingabatsiri zvemabhatiri epa soft pack kusagadzikana, kudhura kwakanyanya, kudonha kuri nyore, uye yakakwirira tekinoroji chikumbaridzo.

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Mufananidzo 4. Soft pack bhatiri kuumbwa

Vagadziri vemabhatiri epasi rose vakaita seSouth Korea LG neJapan ASEC vane mabhatiri emagetsi akapfava, ayo anoshandiswa mumhando dzemagetsi uye plug-in hybrid modhi yemakambani makuru emotokari akadai seNissan, Chevrolet, uye Ford, kusanganisira matatu makuru epasirese ekugadzira uye ekutengesa modhi. Leaf uye Volt. hofori yebhatiri renyika yangu Wanxiang uye vanononoka kuuya Funeng Technology, Yiwei Lithium Energy, Polyfluoride, uye Gateway Power vatangawo kugadzirwa kwakawanda kwemabhatiri epack pack kuti vape makambani makuru emotokari akadai seBAIC neSAIC.

3. Square bhatiri

Kuzivikanwa kwemabhatiri emakona kwakakwira zvakanyanya muChina. Nekukwira kwemabhatiri emagetsi emagetsi mumakore achangopfuura, kupokana pakati pekufamba kwemotokari uye huwandu hwebhatiri kwave kuwedzera kukurumbira. Vagadziri vemabhatiri emumba vanonyanya kushandisa aluminium-shell square mabhatiri ane yakakwirira bhatiri simba density. , Nemhaka yekuti chimiro chebheteri chekwere chiri nyore, kusiyana nebhateri yecylindrical, iyo inoshandisa simbi yakasimba-yakasimba segoko uye zvishongedzo zvine kuputika-uchapupu hwekuchengetedza mavharuvhu, zvishongedzo zvose zvakareruka muhuremu uye zvakakura muhuwandu hwesimba. Sikweya yebhatiri kesi inonyanya kugadzirwa nealuminium alloy, simbi isina tsvina uye zvimwe zvinhu, uye kushandiswa kwemukati kwemhepo kana lamination process, kuchengetedzwa kwebhatiri kuri nani pane kwealuminium-plastiki bhatiri refirimu (kureva bhatiri renyoro-pack), uye kuchengetedzwa kwebhatiri kunenge cylindrical. Mabhatiri emhando akagadziridzwawo zvakanyanya.

Mufananidzo 5. Square cell structure

Zvisinei, sezvo square lithium bhatiri inogona kugadziriswa maererano nehukuru hwechigadzirwa, pane zviuru zvemhando pamusika, uye nokuti kune akawanda mamodheru, maitiro akaoma kubatanidza. Iko hakuna dambudziko mukushandisa mabhatiri emakona mune zvakajairwa zvigadzirwa zvemagetsi, asi kune zvigadzirwa zvemaindasitiri zvemidziyo zvinoda akawanda akateedzana uye akafanana, zviri nani kushandisa yakajairwa cylindrical lithium mabhatiri, kuitira kuti maitiro ekugadzira avimbiswe, uye zviri nyore kuwana zvinotsiva. mune ramangwana. Bhatiri.

Makambani emudzimba neekunze anoshandisa sikweya senzira yekurongedza anonyanya kusanganisira Samsung SDI (fomu rekurongedza rinonyanya mativi, uye iyo yakanaka electrode zvinhu inoshandisa ternary NCM neNCA zvinhu. Irikushingairira kutevera kugadzirwa kwe21700 mabhatiri), BYD (simba. mabhatiri anonyanya kuita square aluminium shells), iyo cathode zvinhu inonyanya kuita lithium iron phosphate, uye yanga ichiitisa tsvakiridzo nekusimudzira uye tekinoroji yekuchengetedza mabhatiri eternary), CATL (zvigadzirwa zvinonyanya square aluminium shell mabhatiri, uye zvinhu zvecathode zvinosanganisira. Lithium iron phosphate uye ternary Lithium iron phosphate technical nzira Inonyanya kushandiswa mukuchengetedza simba uye mabhazi, CATL yakatanga kutendeuka zvizere kune ternary zvinhu muna 2015, ichipa ternary bhatiri mapaketi emotokari dzinotakura dzeBMW, Geely nemamwe makambani), Guoxuan Hi-Tech. (kunyanya muchimiro cheskweya kurongedza, uye iyo yakanaka electrode zvinhu zvinosanganisira Lithium iron phosphate uye ternary zvinhu), TianjinLishen, nezvimwewo.

Pakati pese, iwo matatu ekurongedza marudzi ecylindrical, sikweya uye akapfava mapaketi ane zvawo zvakanakira nekuipira, uye bhatiri rimwe nerimwe rine nzvimbo yaro inotonga. Iyo yakanakisa yekurongedza nzira inogona kutariswa zvinoenderana nehunhu hwebhatiri, zvigadzirwa zvekushandisa minda, hunhu hwechigadzirwa, nezvimwe zvakasanganiswa nehunhu hwefomu yekurongedza. Nekudaro, imwe neimwe yekurongedza mhando yebhatiri ine yayo yega tekinoroji matambudziko. Kugadzirwa kwakanaka kwebhatiri kunosanganisira matambudziko akaomarara mundima dzakawanda senge electrochemistry, kupisa, magetsi, uye makanika, izvo zvinoisa pamberi pepamusoro zvinodiwa kune vanogadzira mabhatiri. Lithium bhatiri vanhu vachiri kuda kuenderera mberi nesimba!