以LiOH·H2O和Ni,Co,Mn过渡金属或其氧化物为原料,采用固相法制备了锂离子电池正极材料LiNi0.25Co0.5Mn0.25O2.对产物进行了XRD,SEM及电化学性能等测试.结果表明:过渡金属原料对所得产物性能的影响很大,在其他原料相同的情况下,以金属Mn为原料所得产物相比以MnO2为原料所得产物具有结晶程度更加完整、颗粒尺寸更大、振实密度更高、电化学性能更好等特点;以金属Ni,Co,Mn为原料所得产物的不可逆容量较低、首次放电比容量可达171.6 mAh·g-1,振实密度高达2.87 g·cm-3.
参考文献
| [1] | Michel Broussely;Graham Archdale .Li-ion batteries and portable power source prospects for the next 5 ～ 10 years[J].Journal of Power Sources,2004,136:386. |
| [2] | Ingrid Rade;Bjorn A Andersson .Requirement for metals of electric vehicle batteries[J].Journal of Power Sources,2001,93:55. |
| [3] | Deniard, P;Dulac, AM;Rocquefelte, X;Grigorova, V;Lebacq, O;Pasturel, A;Jobic, S .High potential positive materials for lithium-ion batteries: transition metal phosphates[J].The journal of physics and chemistry of solids,2004(2/3):229-233. |
| [4] | 黄松涛,阚素荣,储茂友,卢世刚,沈剑韵.锂改性尖晶石锰酸锂的循环伏安特性及其电化学性能研究[J].稀有金属,2006(04):448-452. |
| [5] | Lu Zhonghua;MacNeil D D;Dahn J R .Layered LiNixCo1-2xMnx O2 cathod materials for lithium-ion batteries[J].,2001,4(12):A200. |
| [6] | Naoaki Yabuuchi;Tsutomu Ohzuku .Electrochemical behaviors of LiCo1/3 Ni1/3 Mn1/3 O2 in lithium batteries at elevated temperatures[J].Journal of Power Sources,2005,146:636. |
| [7] | Chen Ching-Hsiang;Wang Chih-Jen;Hwang Bing-Joe.Electrochemical performance of layered LiNixCo1-2x MnxO2 cathode materials synthesized by a sol-gel method[J].Journal of Power Sources,2005 |
| [8] | D. D. MacNeil;Z. Lu;J. R. Dahn .Structure and Electrochemistry of Li[Ni_xCo_(1-2x)Mn_x]O_2 (0<=x<=1/2)[J].Journal of the Electrochemical Society,2002(10):A1332-A1336. |
| [9] | Sung Woo Oh;Sang Ho Park;Chul-Wan Park et al.Structural and electrochemical properties of layered Li[Ni0.5Mn0.5]1-xCoxO2 positive materials synthesized by ultrasonic spray pyrolysis method[J].Solid State Ionics,2004,171:167. |
| [10] | Naoaki Yabuuchi;Tsutomu Ohzuku .Novel lithium insertion material of for advanced lithium-ion batteries[J].Journal of Power Sources,2003(119/121):171-174. |
| [11] | Venkatraman S;Choi J;Manthiram A .Factors influencing the chemical lithium extraction rate from layered LiNi1 -y -xCoyMnzO2cathodes[J].Electrochemistry Communications,2004,6:832. |
| [12] | Zhang Shichao;Qiu Xinping;He Zhiqi et al.Nanoparticled Li(Ni1/3Co1/3Mn1/3)O2 as cathode material for high-rate lithiumion batteries[J].Journal of Power Sources,2006,153:350. |
| [13] | Guo Jian;Jiao Lifang;Yuan Huatang.Effect of structural and electrochemical properties of different Cr-doped contents of Li[Ni1/3Mn1/3Co1/3]O2[J].Electrochimica Acta,2006 |
| [14] | Li De-Cheng;Noguchi Hideyuki;Yoahio Masaki .Electrochemical characteristics of LiNi0.5-xMn0.5-x Co2x O2 (0 ＜ x ≤ 0.1)prepared by spray dry method[J].Electrochimica Acta,2004,50:427. |
| [15] | Cho T H;Park S M;Yoshio M et al.Effect of synthesis condition on the structural and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 prepared by carbonate co-precipitation method[J].Journal of Power Sources,2005,142:306. |
| [16] | Tang Aidong;Huang Kelong .Electrochemical properties and structural characterization of layered LixNi0.35 Co0.3 Mn0.35 O2+δcathode materials[J].Material Science and Engineering,2005,B122:115. |
| [17] | Kim Gil-Ho;Myung Seung-Taek;Kim Hyun-Soo et al.Synthesis of spherical Li[Ni(1/3-z)Co(1/3-x)Mn(1/3-z)Mgz]O2 as positive electrode material for lithium-ion battery[J].Electrochimica Acta,2006,51:2447. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%