K-GIC의 합성 및 리튬이온이차전지에서의 부극특성

김현중; 이철태

Journal of the Korean Industrial and Engineering Chemistry, Vol.9, No.5, 786-790, October, 1998

Export Citation

K-GIC의 합성 및 리튬이온이차전지에서의 부극특성

The Preparation of K-GIC and its Anodic Characteristics of Lithium Ion Secondary Battery

김현중, 이철태

초록

리튬이온이차전지에 사용되는 탄소부극의 성능을 향상시키기 위하여 새로운 탄소부극으로서 K-GIC를 합성하여 전기화학적 특성을 조사하였다. K의 삽입량은 KCl 수용액의 농도가 2＞3＞1 mole/ℓ 의 순으로 증가하였으며 1 mole/ℓ의 KCl 수용액으로 처리하였을 때 K와 C의 mol 비는 156∼388 carbon/potassium이었다. K-GIC의 합성조건을 1moleℓ KCl 수용액으로 700℃에서 1시간으로 처리하였을 때 가장 우수한 리튬의 삽입과 탈삽입 거동을 나타냈으며 가역성 또한 우수하였다.

K-GIC of the new carbon electrode to improve performance of carbon negative electrode in lithium ion secondary battery was prepated and its electrical characteristics were studied. Form this study, intercalated K quantity was increased in order of 2＞3＞1 mole/ℓ of KCl solution. And, for KCl solution. And for KCl solution of 1 mole/ℓ, the mole ratio of carbon and potassium was 156∼388 carbon/potassium. The proper condition of K-GIC preparetion was KCl solution of 1 mole/ℓ, reaction temperature of 700℃, reaction time of 1 hour. From this condition, the intercalation and deintercalation behavior of lithium was very excellent. Also the reversibility was excellent.

Keywords:Lithium Ion Secondary Battery;Carbon Anode;Anodic Characteristics;K-GIC

[References]

Ottmers DM, Rase HF, Carbon, 4, 125 (1966)
Fujimoto H, Mabuki A, Tokumitsu K, Kasuh T, Akuzawa N, Carbon, 32, 193 (1994)

[1] Ottmers DM, Rase HF, Carbon, 4, 125 (1966)

[2] Fujimoto H, Mabuki A, Tokumitsu K, Kasuh T, Akuzawa N, Carbon, 32, 193 (1994)