TY - JOUR
T1 - Time-resolved XRD study on the thermal decomposition of nickel-based layered cathode materials for Li-ion batteries
AU - Yoon, Won Sub
AU - Chung, Kyung Yoon
AU - Balasubramanian, Mahalingam
AU - Hanson, Jonathan
AU - McBreen, James
AU - Yang, Xiao Qing
PY - 2006/12/7
Y1 - 2006/12/7
N2 - Structural changes for a series of nickel based layer structured cathode materials during heating from 25 to 450 °C in the presence of electrolyte were studied using time-resolved X-ray diffraction (XRD). These samples were electrochemically delithiated to Li0.33NiO2, Li0.27Ni0.8Co0.15Al0.05O2, and Li0.2Ni0.5Mn0.5O2. The structural changes of all these three samples follow a same trend, first convert from a layered structure to a disordered spinel structure, then the disordered spinel phase transforms to the NiO-like phase as the temperature increases. However, the onset temperature of the thermal decomposition reactions strongly depends on the nickel content of the material. The lower the nickel content, the higher the decomposition temperature. At the end of heating at 450 °C, the metallic nickel structure was observed only for Li0.33NiO2 sample.
AB - Structural changes for a series of nickel based layer structured cathode materials during heating from 25 to 450 °C in the presence of electrolyte were studied using time-resolved X-ray diffraction (XRD). These samples were electrochemically delithiated to Li0.33NiO2, Li0.27Ni0.8Co0.15Al0.05O2, and Li0.2Ni0.5Mn0.5O2. The structural changes of all these three samples follow a same trend, first convert from a layered structure to a disordered spinel structure, then the disordered spinel phase transforms to the NiO-like phase as the temperature increases. However, the onset temperature of the thermal decomposition reactions strongly depends on the nickel content of the material. The lower the nickel content, the higher the decomposition temperature. At the end of heating at 450 °C, the metallic nickel structure was observed only for Li0.33NiO2 sample.
KW - LiNiMnO
KW - LiNiCoAlO
KW - LiNiO
KW - Lithium rechargeable batteries
KW - Time-resolved X-ray diffraction
UR - https://www.scopus.com/pages/publications/33947599493
U2 - 10.1016/j.jpowsour.2006.01.043
DO - 10.1016/j.jpowsour.2006.01.043
M3 - Article
AN - SCOPUS:33947599493
SN - 0378-7753
VL - 163
SP - 219
EP - 222
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 1 SPEC. ISS.
ER -
