Cellulose as a binding material in graphitic anodes for Li ion batteries: a performance and degradation study
Cellulose as a binding material in graphitic anodes for Li ion batteries: a performance and degradation study
复制标题
DOI：
10.1016/s0013-4686(02)00784-3
复制
发表时间：
2003-02-20
影响因子：
6.6
通讯作者：
Jamnik, J
中科院分区：
文献类型：
--
作者：
Drofenik, J;Gaberscek, M;Jamnik, J
四种类型的纤维素，特别是羧甲基纤维素（CMC），测试作为潜在的结合材料在石墨阳极的锂离子电池。结果表明，能提供可接受的阳极性能（在前10个循环中可逆容量> 300 mA h g(-1)，不可逆损失< 20%）的纤维素的最低含量约为2 wt.%，低于传统聚合物粘合剂（5-10 wt.%）。插入-脱插入和钝化过程的动力学似乎不受纤维素存在的影响。根据x射线衍射和显微观察，给出了纤维素含量低于1 wt.%时电极失效的解释。最后，讨论了纤维素在复合阳极材料中的结构（分布），并通过一系列实验（间接）验证了纤维素在复合阳极材料中的结构（分布）。大多数结果与明胶或常规聚合物粘合剂或两者的相应结果进行比较。(C) 2002 Elsevier Science Ltd.版权所有。
Four types of cellulose, in particular carboxy methyl cellulose (CMC), are tested as potential binding materials in graphitic anodes for lithium ion batteries. It is shown that a minimum content of a cellulose which gives acceptable anode properties (reversible capacity > 300 mA h g(-1) during the first 10 cycles, irreversible loss < 20%) is about 2 wt.%, which is less than in the case of conventional polymeric binders (5-10 wt.%). Kinetics of insertion-deinsertion and passivation processes seem not to be affected by the presence of cellulose. Explanation for the electrode failure at cellulose contents lower than I wt.% is given based on X-ray diffraction and microscopy investigations. Finally, the structure (distribution) of cellulose in the composite anode material is discussed and (indirectly) checked with a series of experiments. Most results are compared with the corresponding results obtained either with gelatin or conventional polymeric binders or both. (C) 2002 Elsevier Science Ltd. All rights reserved.