2010B1934 BL19B2

X

A Structural Study of Prussian Blue Analogues for Lithium-Ion Battery Electrodes by Synchrotron X-Ray Powder Diffraction

a, a, a, a

Daisuke Asakuraa, Masashi Okuboa, Eiji Hosonoa, and Haoshen Zhoua

a

aNational Institute for Advanced Industrial Science and Technology AIST

K1.85Mn1.08[Mn CN 6]X

X

K2M2-yFey CN 6 Fe Fe

/Li Li-ion battery: LIB

LIB

Metal Organic Framework Prussian blue analogue: PBAA2-xMyM’ CN 6 nH2O A: M, M’: [1]

PBA AB CN 3

K1.85Mn1.08[Mn CN 6] 0.7H2O KMM [2] PBAPBA

KMM K Li190 mAh/g

LiCoO2 KMM KMM Li 50

50 K Cu K = 1.54 ex-situ X x-ray diffraction: XRD K K

2 K17 Li

Li

X K Mn 2 3KMM Mn C MnC6 N

MnN6 2 Mn3+ KXRD K

K Li

KMM

Mn-C N-MnPBA

Cu K XRD

XRDX d Mn-C N-Mn

KMM Mn Fe

K2Mn2-yFey CN 6 2.6H2O KMF Fe CNFe Fe y 0~1 KMM

KMF Mn Fe CN KMM Fe

75 wt% : 20 wt% : 5 wt%3 K

0.3 mmBL19B2

X 0.501 X

1 BL19B2 KMM K XRDx = 1.85 XRD

XRD x = 1.12

x = 1 x = 0 x = 1.12 x = 1.1 K

x = 1.1 x = 1x = 0

x = 1.1, 1, 0

2 KMF Fe

Fe Fe MnFe C N

Mn or Fe -C N- Mn or Fe4

XRD Fe KMF KMM Fe50% 2 ~ 8 002 , 211 , 002

3 SEM FeKMM 1 m nm

Fe 10% 50% Fe 50%Fe Fe : Mn = 1:1

4Mn or Fe -C N- Mn or Fe

1 KMM K XRD

2 KMF a XRD b Fe

PBA XRD

XRDSPring-8

0.3 mm

KMF Fe

XRD BL19B2

[1] M. Okubo et al., J. Phys. Chem. Lett. 1, 2063 2010 . [2] J.-H. Her et al., Inorg. Chem. 49, 1524 2010 .