Nickel dioxide polymorphs as lithium insertion electrodes

被引：6

作者：

Arai, H ^{[1
]}

Tsuda, M ^{[1
]}

Saito, K ^{[1
]}

Hayashi, M ^{[1
]}

Sakurai, Y ^{[1
]}

机构：

[1] NTT Sci & Core Technol Lab Grp, Res Planning Dept, Atsugi, Kanagawa 2430198, Japan

来源：

ELECTROCHIMICA ACTA | 2002年 / 47卷 / 17期

关键词：

nickel dioxide; lithium nickelate; delithiation with acid; structural modification on heating; lithium insertion electrode;

D O I：

10.1016/S0013-4686(02)00134-2

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Five kinds of nickel dioxide polymorphs, LixNiO2 with x approximate to 0, were prepared by treating LiNiO2 with sulfuric acid solutions, occasionally followed by low-temperature heating. Here we report their structure and properties as lithium insertion electrodes. Acid-treated Li0.10NiO2 with two layered phases turned into a single-layered compound at 160 degreesC and then to a spinel-related compound at 170 degreesC. Acid-treated Li0.04NiO2 Contained a phase with a cadmium iodide structure, which was not observed with Li0.10NiO2. Heating this Li0.04NiO2 yielded a spinel-related compound on heating. The Ni-O distances in these compounds suggested that the nickel oxidation state was kept approximately +4. These 'nickel dioxide' polymorphs exhibited varied characteristics as lithium insertion electrodes. We discuss the electrode behavior together with the structural changes that occur during lithium insertion. We also examined the effect of the electrode drying condition on the cycling performance. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：2697 / 2705

页数：9

共 34 条

[1] Structure and electrochemical properties of Li-1-x(NiyCO1-y)(1+x)O-2 - Effect of chemical delithiation at 0 degrees C [J].

Alcantara, R ;

Morales, J ;

Tirado, JL ;

Stoyanova, R ;

Zhecheva, E .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (12) :3997-4005

[2] CoO2, the end member of the LixCoO2 solid solution [J].

Amatucci, GG ;

Tarascon, JM ;

Klein, LC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (03) :1114-1123

[3] Reversibility of LiNiO2 cathode [J].

Arai, H ;

Okada, S ;

Sakurai, Y ;

Yamaki, J .

SOLID STATE IONICS, 1997, 95 (3-4) :275-282

[4] Thermal behavior of Li1-yNiO2 and the decomposition mechanism [J].

Arai, H ;

Okada, S ;

Sakurai, Y ;

Yamaki, J .

SOLID STATE IONICS, 1998, 109 (3-4) :295-302

[5] Lithiation into chemically synthesized LixNiO2 [J].

Arai, H ;

Sakurai, Y .

DENKI KAGAKU, 1998, 66 (12) :1206-1208

[6]

Arai H, 2000, MATER RES SOC SYMP P, V575, P3

[7] CHARACTERIZATION AND CATHODE PERFORMANCE OF LI-1-XNI1+XO2 PREPARED WITH THE EXCESS LITHIUM METHOD [J].

ARAI, H ;

OKADA, S ;

OHTSUKA, H ;

ICHIMURA, M ;

YAMAKI, J .

SOLID STATE IONICS, 1995, 80 (3-4) :261-269

[8] Characteristics of LixNiO2 obtained by chemical delithiation [J].

Arai, H ;

Sakurai, Y .

JOURNAL OF POWER SOURCES, 1999, 81 :401-405

[9] NiO2 obtained by electrochemical lithium deintercalation from lithium nickelate:: Structural modifications [J].

Croguennec, L ;

Pouillerie, C ;

Delmas, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (04) :1314-1321

[10] Structural characterisation of new metastable NiO2 phases [J].

Croguennec, L ;

Pouillerie, C ;

Delmas, C .

SOLID STATE IONICS, 2000, 135 (1-4) :259-266

← 1 2 3 4 →