TY - JOUR AU - 백운규 DA - 2015/05 PY - 2015 UR - http://link.springer.com/article/10.1007%2Fs13233-015-3094-1 UR - http://hdl.handle.net/20.500.11754/24661 AB - The increase in a graphite electrode thickness is an inevitable to achieve the high energy density of lithium ion batteries (LIBs). However, the increment of electrode thickness results in a significant degradation of the electrochemical performances due to a poor kinetic associated with lithium ion caused by a long lithium ion diffusion length and large polarization. To improve the kinetic associated with lithium ion, the lithium salt of carboxymethyl cellulose (Li-CMC) is introduced as a binder. The Li-CMC is synthesized from sodium salt of carboxymethyl cellulose (Na-CMC) via simple two-step method. The thick graphite electrode prepared with Li-CMC exhibits much improved electrochemical performances, including a specific capacity and a cycle performance, compared to that with Na-CMC. The voltage profiles, electrochemical impedance spectroscopy (EIS), and rate capabilities results indicate that these improvements are attributed to improved lithium ion kinetics and low polarization by employing Li-CMC binder. PB - POLYMER SOC KOREA KW - lithium salt of carboxymethyl cellulose KW - Li-CMC KW - water soluble binder KW - thick electrode KW - lithium ion batteries KW - LIBs TI - Lithium salt of carboxymethyl cellulose as an aqueous binder for thick graphite electrode in lithium ion batteries IS - 8 VL - 23 DO - 10.1007/s13233-015-3094-1 T2 - MACROMOLECULAR RESEARCH ER -