Cui Miao, Peifeng Bai, Qianqian Jiang, Shuqing Sun, - A novel synthesis and characterization of LiFePO4 and LiFePO4/C as a cathode material for lithium-ion battery - Journal of Power Sou
4/C - 1.1 1.1.1 in Liti Li 3, o Li có φ Li = -3,04V / Li+ NHE (normal hydrogen electrode) Liti [17] Li , Li oxi hóa thành Li+, ion Li + L , Silic t xC6, LixSiy Li 1.1: [17] Vt liu ng ( Ah/kg ) Pb 260 Cd 480 Ag 500 Zn 820 Li 3860 Page 170809405668998acb0c3-9fca-46c7-86f9-862af165c7b4 1708094056689f941f145-e274-482c-a517-48986087216f 1708094056689a5429add-1021-4a26-b6ee-7971d6e1550e 4/C - 1.2: [5] Khi ng Kí ion hóa Rkl R ion ng to nc t os Eo Li+/Li hiu (kJ/mol) riêng C C V 179 1370 - 3.04 Li I1 I2 521 7300 g/cm 1.519 0.6 0.534 Pin Liti itan sunfit Li Li âm Li+ n chì catot [7,17] Liti than chì pin Liti Liti Coban Oxit (LiCoO 2 Li ion Li+ Page 4/C - [5,7,17] Li ly lyn ly ly Polymer Liti- ( ( = 0,890 cP) Li- Cò- xO y (M: Mn, Ni, Co) hay V2O5, V 6O13 1,23 V) , Liti-ion thông + + dung môi t+ Page 4/C - sau c tin hic ng dng là: Propylen cacbonat (PC), Ethylen cacbonat (EC), Tetra hydro furan (THF), Dymethyl sunfoxid (DMSO) Tuy vy vic s dng dung môi hn phc tp, ng dng thc t t hiu qu cao G gii, mt s nhà khoa hn hành nghiên cn Liti-ion t mt s kt qu nh cacbonat M m i rng m n Lithium-ion ng dng vào cuc sng hình pin Liti âm quy Liti- [7,17] Liti-ion Liti- [17] p n t Sony th Liti-ion i quy mô sn xut công nghi2 , LiMn2O4,Ti kin cơng ty Bellcore Page 4/C - th Liti- cu [7,17] Liti-ion l phosphate LiMPO4 nhà kích t Liti-ion 1.1.2 Liti Lithium - Pin Liti hay pin Liti - Pin Liti )hay pin Liti -Lithium-ion (Lithium- ion battery) hay pin Liti 1.1.2.1 Pin Liti s Li MnO2 -MnO2 -MnO2 là: - Li+ + e- (- 1.1) - 2 + Li+ + e- MnO-2 (Li+) - 1.2) - 2 MnO-2 (Li+) (- 1.3) -2 (Li + + vào 2 ình1.1 4+ 3+ -MnO + Page 4/C - S 2 + Hình 1.1: Quá trình cài Li 2 + hay + 2 (rocking chair) Trong pin Li/MnO2 4 , LiCF3CO3 chính propylen cacbonat (PC) 1,2dimethoxyethane (DME) -DME-LiClO4 10-2 1 cm-1 cP) [17] - Pin litiMnO 2 - Pin Liti Cacbon Monoflorua (Li (CF) n) - Pin Liti Thionyl Clorua (Li SOCl 2 Page 4/C - 1.1.2.2 Pin Liti 2 Li+ 2 -MnO2 2 có 2O4 CDMO (Centre for 2 /MnO2, LiMn2 O4 - 4 ng môi PC/DME 2 O composit CDMO có 2 rPin Liti Pin Liti 2 xTiMnO4 xMn1,5 Ni0,5O4, LiCr0,5Mn1,95 O4, Li1,1Mn 1,9Al0,1O4 [17] khác Page 4/C - Trong pin Liti 1.1.2.3 -ion -ion hay pin Liti ion Li + Li+ ion Li+ + cacbon Lix C6, LixSi y, LixSny 1.3:- ion [17] polymer p LiCoO2, LiFePO 4, LiMn2O4, LiNiO2 g polyvinydene fluorua Cu(-) ; Al (+) PE, PP LiPF6, LiBF4, LiAsF6 Dung môi propylene cacbonate (PC), diethyl lithium cacbonate(DEC) Page 4/C - - 4, LiCF3CO3 Hlen cacbonat (PC) 1,2- -DME-LiClO4 cao ( 10-2 -1.cm-1 cP) [7, 8, 17] 1.2 Liti-ion 2 [8] Li+ âm quy 2 xe =>Li(1-x) CoO2 + xLi+ (-1.4) + => LixC (-1.5) 2 + 6C => Li (1-x)CoO +LixC6 (-1.6) Page 4/C - + (1-x)CoO + xLi+ + xe => LiCoO (-1.7) LixC6 => 6C + xe + xLi+ (-1.8) Li(1-x)CoO2 +Li xC6 => LiCoO2 + 6C -1.9) 1.3nh Li ion [8] Page 10