TianJinlishen, Guoxuan Hi-Tech iyo kooxo kale ayaa asal ahaan ku guuleystey cilmi baarista iyo horumarinta baytariyada 300 Wh/kg. Intaa waxaa dheer, weli waxaa jira tiro badan oo unugyo ah oo fulinaya shaqada horumarinta iyo cilmi-baarista ee la xidhiidha.

Halabuurka baytariyada lithium-ion ee baakadaha dabacsan sida caadiga ah waxaa ka mid ah electrodes togan, electrodes negative, separators, electrolytes, iyo qalabka kale ee lagama maarmaanka ah, sida tabs, cajalado, iyo balaastikada aluminium. Sida laga soo xigtay baahida doodda, qoraaga warqadani wuxuu u qaybiyaa walxaha ku jira batteriga lithium-ion ee jilicsan laba qaybood: isku-darka cutubka tiirka iyo walxaha aan tamarta lahayn. Cutubka gabal tiirku waxa uu tilmaamayaa koronto togan oo lagu daray electrode taban, iyo dhammaan electrodes-ka togan iyo electrode-ka taban waxa loo qaadan karaa isku-darka unugyo bille ah oo ka kooban dhawr unug oo tiir ah; Walxaha tamarta ee aan wax ku biirin waxay tixraacaan dhammaan walxaha kale marka laga reebo isku dhafka unugyada tiirarka, sida diaphragms, electrolytes, lugaha tiirarka, balaastikada aluminiumka, cajaladaha ilaalinta iyo joojinta. Cajalad iwm. LiMO 2 (M = Co, Ni iyo Ni-Co-Mn, iwm.)/nidaamka kaarboon baytariyada Li-ion, isku darka cutubyada gabalka tiirka ayaa go’aamiya awoodda iyo tamarta batteriga.

Waqtigan xaadirka ah, si loo gaaro yoolka 300Wh / kg ee tamarta batteriga gaarka ah, hababka ugu muhiimsan waxaa ka mid ah:

(1) Dooro nidaam qalab awood sare leh, korantada togan waxay ka samaysan tahay ternary nikkel sare, iyo electrode taban wuxuu ka samaysan yahay kaarboon silikoon;

(2) Nakhshad koronto-yar-sare si loo wanaajiyo danab-jarida kharashka;

(3) Hagaajinta samaynta dareeraha korantada togan iyo taban iyo kordhinta saamiga walxaha firfircoon ee korantada;

(4) Isticmaal xaashi naxaas ah oo khafiif ah iyo bireed aluminium ah si aad u yarayso saamiga hadda jira;

(5) Kordhi qadarka daahan ee electrodes togan iyo negative, iyo in la kordhiyo saamiga walxaha firfircoon ee electrodes;

(6) Xakamaynta qadarka elektrolytka, hoos u dhig tirada korantada oo kordhiya tamarta gaarka ah ee baytariyada lithium-ion;

(7) Kor u qaad qaabka batteriga oo yaree saamiga tabs iyo alaabta baakadaha ee batteriga.

Waxaa ka mid ah saddexda nooc ee baytariyada cylindrical, qolof labajibbaaran adag iyo baakad jilicsan oo jilicsan, batari jilicsan ayaa leh sifooyinka naqshadeynta dabacsan, miisaanka fudud, iska caabbinta hoose ee gudaha, ma fududa in la qarxiyo, iyo wareegyo badan, iyo tamarta gaarka ah. waxqabadka batteriga sidoo kale waa mid aad u fiican. Sidaa darteed, baytariyada lithium-ion ee baakadaha jilicsan ee dahaaran waa mawduuc cilmi baaris oo kulul hadda. Habka naqshadaynta moodeelka batari lithium-ion baakadka jilicsan, doorsoomayaasha ugu waaweyn waxaa loo qaybin karaa lixdan dhinac ee soo socda. Saddexda hore waxaa loo tixgelin karaa in lagu go’aamiyo heerka nidaamka elektiroonigga ah iyo xeerarka naqshadeynta, saddexda dambena badanaa waa naqshadeynta moodeelka. doorsoomayaasha xiisaha.

(1) Walxaha korantada ee wanaagsan iyo kuwa taban iyo qaababka;

(2) Cufnaanta cufnaanta ee korantada togan iyo kuwa taban;

(3) Saamiga awoodda korantada taban (N) ee awoodda korantada togan (P) (N/P);

(4) Tirada cutubyada tiirarka tiirka (oo la mid ah tirada xabbadaha tiirarka togan);

(5) Qadarka daahan elektiroonigga ah (oo ku saleysan go’aaminta N / P, marka hore go’aamiso qadarka daahan elektiroonigga ah, ka dibna go’aamiso qadarka daahan electrode negative);

(6) Aagga hal-dhinac ah ee hal electrode togan (waxaa lagu go’aamiyaa dhererka iyo ballaca korantada togan, marka dhererka iyo ballaca korantada togan la go’aamiyo, cabbirka korantada taban ayaa sidoo kale la go’aamiyaa, iyo cabbirka unugga ayaa la go’aamin karaa).

Marka hore, sida laga soo xigtay suugaanta [1], saamaynta tirada cutubyada gabal tiirarka, qadarka daahan electrode togan iyo aagga hal dhinac ee hal gabal oo ka mid ah electrode togan oo ku saabsan tamarta gaarka ah iyo cufnaanta tamarta ee batari ayaa laga hadlayaa. Tamarta gaarka ah (ES) ee batteriga waxaa lagu muujin karaa isla’egta (1).

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Qaabka (1): x waa tirada electrodes togan ee ku jira baytariga; y waa qiyaasta dahaarka ee korantada togan, kg / m2; z waa aagga hal-dhinac ah ee hal electrode togan, m2; x∈N*, y > 0, z > 0; e (y, z) waa tamarta unug gabal tiir ah wax ku biirin karo, Wh, qaacidada xisaabinta waxaa lagu muujiyey qaacidada (2).

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Qaabka (2): DAV waa celceliska tamarta dareeraha, V; PC waa saamiga of cuf ee electrode togan walxaha firfircoon ilaa tirada guud ee walxaha firfircoon ee korantada togan oo lagu daray wakiilka conductive iyo binder,%; SCC waa awoodda gaarka ah ee walxaha firfircoon ee korantada togan, Ah / kg; m(y, z) waa cufnaanta unug gabal tiir ah, kg, iyo qaacidada xisaabinta waxaa lagu muujiyey qaacidada (3).

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Qaaciddada (3): KCT waa saamiga wadarta guud ee korantada togan ee monolithic (wadarta aagga daahan iyo aagga foil tab) ilaa aagga hal dhinac ah ee elektrodeka togan ee monolithic, waana in ka badan 1; TAL waa dhumucda aluminium ururiyaha hadda jira, m; ρAl waa cufnaanta aluminium ururiyaha hadda jira, kg/m3; KA waa saamiga wadarta guud ee electrode kasta oo taban ilaa aagga hal dhinac ee hal elektrode togan, waana ka weyn yahay 1; Tcu waa dhumucda naxaasta hadda ururiyaha ah, m; ρCu waa ururiyaha hadda naxaasta ah. Cufnaanta, kg/m3; N / P waa saamiga awoodda korantada taban ee awoodda korantada togan; PA waa saamiga korantada taban ee walxaha firfircoon ee wadarta guud ee walxaha firfircoon ee korantada taban oo lagu daray wakiilka conductive iyo binder,%; SCA waa saamiga korantada taban ee awoodda walaxda firfircoon, Ah/kg. M(x, y,z) waa cufnaanta walaxda aan tamarta ku darsan, kg, qaacidada xisaabinta waxa lagu muujiyay qaacidada (4)

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Qaaciddada (4): kAP waa saamiga aluminium-caagga ilaa aagga hal-dhinac ah ee korantada togan, oo ka weyn 1; SDAP waa cufnaanta aagga aluminium-caagga, kg/m2; mTab ​​waa wadarta guud ee electrodes togan iyo taban, taas oo laga arki karaa waa joogto ah; mTape waa tirada guud ee cajaladda, kaas oo loo tixgelin karo mid joogto ah; kS waa saamiga wadarta guud ee kala-soocida ilaa wadarta guud ee xaashida korantada togan, waana ka weyn tahay 1; SDS waa cufnaanta aagga ee kala-soocida, kg/m2; kE waa cufka elektrolytka iyo batteriga Saamiga awoodda, iskudubbaridka waa tiro togan. Sida tan, waxaa lagu soo gabagabeyn karaa in kororka hal arrin oo x, y iyo z ah ay kordhin doonto tamarta gaarka ah ee batteriga.

Si aad u barato muhiimadda ay leedahay saamaynta tirada cutubyo gabal ciir, qadar daahan ee electrode togan iyo meesha hal dhinac ee electrode togan ee tamarta gaarka ah iyo cufnaanta tamarta ee batteriga ah, electrochemical ah. nidaamka iyo xeerarka design (taas oo ah, si loo go’aamiyo walxaha electrode iyo formula, Compaction cufnaanta iyo N / P, iwm), ka dibna orthogonally isku daraan heer kasta oo ka mid ah saddexda arrimood, sida tirada cutubyo gabal ciir, qadarka daahan electrode togan, iyo aagga hal-dhinac ee hal gabal oo ah electrode togan, si loo barbardhigo walxaha electrode go’aamiyay koox gaar ah iyo falanqaynta Range waxaa lagu sameeyay xisaabinta tamarta gaarka ah iyo cufnaanta tamarta ee batteriga ku salaysan caanaha, cufnaanta cufan iyo N/P. Naqshadeynta naqshadeynta iyo xisaabinta natiijooyinka ayaa lagu muujiyay shaxda 1. Natiijooyinka naqshadeynta orthogonal ayaa lagu falanqeeyay iyadoo la adeegsanayo habka kala duwan, natiijooyinkana waxaa lagu muujiyay sawirka 1. Tamarta gaarka ah iyo cufnaanta tamarta ee baytariga ayaa kor u kaca iyadoo la raacayo tirada cutubyada cutubyada tiirarka. , qadarka daahan electrode togan, iyo aagga hal-dhinac ee electrode togan ee hal gabal. Waxaa ka mid ah saddexda arrimood ee tirada cutubyada cutubyada cirifka, qadarka daahan electrode togan, iyo aagga hal dhinac ee hal electrode togan, qadarka daahan electrode togan ayaa saamaynta ugu weyn ku leh tamarta gaarka ah ee batari; Ka mid ah saddexda arrimood ee aagga hal-dhinac ah, aagga hal-dhinac ee cathode monolithic wuxuu leeyahay saameynta ugu weyn ee cufnaanta tamarta ee batteriga.

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Waxaa laga arki karaa Jaantuska 1a in tamarta gaarka ah ee batteriga ay kordho monotonically iyadoo la raacayo tirada cutubyada cutubyada tiirka, tirada dahaarka cathode, iyo aagga hal-dhinac ee cathode-ga kaliya, kaas oo xaqiijinaya saxnaanta falanqaynta aragtiyeed ee qaybta hore; Qodobka ugu muhiimsan ee saameeya tamarta gaarka ah ee batteriga waa qadarka dahaadhka togan. Waxaa laga arki karaa Jaantuska 1b in cufnaanta tamarta ee batteriga ay kordho monotonically iyadoo la raacayo tirada cutubyada cutubyada tiirka, qadarka dahaarka korantada togan, iyo aagga hal dhinac ah ee hal elektrode togan, kaas oo sidoo kale xaqiijinaya saxnaanta. ee falanqayntii hore ee aragtida; Qodobka ugu muhiimsan ee saameeya cufnaanta tamarta batteriga waa aagga hal dhinac ah ee korantada togan ee monolithic. Marka loo eego falanqaynta kor ku xusan, si loo hagaajiyo tamarta gaarka ah ee batteriga, waa furaha si loo kordhiyo qadarka daahan elektiroonigga ah sida ugu macquulsan. Ka dib markii la go’aamiyo xadka sare ee la aqbali karo ee qadarka daahan electrode togan, hagaajin heerarka factor haray si loo gaaro shuruudaha macaamiisha; Cufnaanta tamarta ee batteriga, waa furaha si loo kordhiyo aagga hal-dhinac ah ee korantada togan ee monolithic sida ugu macquulsan. Ka dib markii la go’aamiyo xadka sare ee la aqbali karo ee aagga hal-dhinac ah ee korantada togan ee monolithic, hagaajin heerarka qodobbada soo hadhay si aad u buuxiso shuruudaha macaamiisha.

Marka loo eego tan, waxaa lagu soo gabagabeyn karaa in cufnaanta tamarta gaarka ah iyo cufnaanta tamarta ee batteriga monotonically ay kor u kacdo tirada cutubyada cutubyada cirifka, qaddarka dahaarka elektiroonigga ah ee togan, iyo aagga hal dhinac ee hal elektrode togan. Waxaa ka mid ah saddex arrimood oo ka mid ah tirada cutubyada gabal tiirarka, qadarka daahan electrode togan, iyo meesha hal dhinac ee hal electrode togan, saamaynta qadarka daahan electrode togan on tamarta gaarka ah ee batteriga waa kuwa ugu muhiimsan; Ka mid ah saddexda arrimood ee aagga hal-dhinac ah, aagga hal-dhinac ee cathode monolithic wuxuu leeyahay saameynta ugu weyn ee cufnaanta tamarta ee batteriga.

Kadib, sida ku cad suugaanta [2], waxaa laga hadlayaa sida loo yareeyo tayada batteriga marka kaliya loo baahan yahay awoodda batteriga, iyo cabbirka bateriga iyo tilmaamayaasha kale ee waxqabadka aan looga baahnayn nidaamka walxaha la go’aamiyay iyo farsamada farsamaynta. heerka. Xisaabinta tayada batteriga oo leh tirada taarikada togan iyo saamiga dhinaca taarikada togan sida doorsoomayaal madaxbannaan ayaa lagu muujiyey qaacidada (5).

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Qaaciddada (5), M (x, y) waa wadarta guud ee batteriga; x waa tirada taarikada togan ee batteriga; y waa saamiga dhinaca taarikada togan (qiimihiisu wuxuu la mid yahay ballaca loo qaybiyay dhererka, sida ku cad sawirka 2); k1, k2, k3, k4, k5, k6, k7 waa isku-dhafan, qiyamkoodana waxaa lagu go’aamiyaa 26 cabbir oo la xidhiidha awoodda batteriga, nidaamka qalabka iyo heerka tignoolajiyada farsamaynta, eeg Shaxda 2. Ka dib marka cabbirada Shaxda 2 la go’aamiyo , Isku-dheelitir kasta Waxaa markaas la go’aamiyaa in xiriirka ka dhexeeya 26-beegti iyo k1, k2, k3, k4, k5, k6, iyo k7 uu yahay mid aad u fudud, laakiin habka soo saariddu waa mid aad u dhib badan. Iyadoo xisaab ahaan laga soo saarayo ogeysiiska (5), iyadoo la hagaajinayo tirada taarikada togan iyo saamiga dhinaca taarikada togan, tayada batteriga ugu yar ee lagu gaari karo naqshadeynta moodeelka ayaa la heli karaa.

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Jaantuska 2 Jaantuska jaantuska dhererka iyo ballaca baytariga dahaadhka ah

Shaxda 2 cabbirrada naqshadeynta unugga Laminated

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Jadwalka 2, qiimaha gaarka ah waa qiimaha cabbirka dhabta ah ee batteriga oo leh 50.3Ah. Qiyaasaha khuseeya ayaa go’aaminaya in k1, k2, k3, k4, k5, k6, iyo k7 ay yihiin 0.041, 0.680, 0.619, 13.953, 8.261, 639.554, 921.609 siday u kala horreeyaan. , x waa 21, y waa 1.97006 (ballaadhka korantada togan waa 329 mln, dhererkuna waa 167 mm). Wanaajinta ka dib, marka tirada korantada togan ay tahay 51, tayada batteriga ayaa ah tan ugu yar.