Class information for:
Level 1: HYDROGEN STORAGE ALLOY//METAL HYDRIDE ELECTRODE//NI MH BATTERY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1747 2506 20.4 72%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
514 3       HYDROGEN STORAGE//METAL HYDRIDES//HYDROGEN STORAGE MATERIALS 21382
473 2             HYDROGEN STORAGE ALLOY//METAL HYDRIDES//HYDROGEN STORAGE 15888
1747 1                   HYDROGEN STORAGE ALLOY//METAL HYDRIDE ELECTRODE//NI MH BATTERY 2506

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 HYDROGEN STORAGE ALLOY authKW 3477949 20% 56% 510
2 METAL HYDRIDE ELECTRODE authKW 2124396 8% 85% 205
3 NI MH BATTERY authKW 1496919 8% 64% 192
4 NICKEL METAL HYDRIDE BATTERY authKW 712594 5% 50% 117
5 ELECTROCHEMICAL PROPERTIES authKW 498344 17% 10% 422
6 ELECTROCHEMICAL REACTIONS authKW 432226 5% 30% 119
7 HIGH RATE DISCHARGEABILITY authKW 382667 1% 90% 35
8 HYDROGEN ABSORBING MATERIALS authKW 360907 5% 22% 136
9 ENERGY CONVERS DEVICES INC address 316760 1% 100% 26
10 LA MG NI SYSTEM ELECTRODE ALLOY authKW 304577 1% 100% 25

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Electrochemistry 44137 36% 0% 890
2 Metallurgy & Metallurgical Engineering 42580 43% 0% 1090
3 Chemistry, Physical 17341 55% 0% 1373
4 Materials Science, Multidisciplinary 14777 53% 0% 1338
5 Energy & Fuels 10091 21% 0% 521
6 Materials Science, Coatings & Films 1053 5% 0% 128
7 Chemistry, Applied 163 3% 0% 80
8 Materials Science, Ceramics 14 1% 0% 21
9 Chemistry, Inorganic & Nuclear 9 2% 0% 46
10 Mining & Mineral Processing 4 0% 0% 6

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ENERGY CONVERS DEVICES INC 316760 1% 100% 26
2 CHIM MET TER RA 113625 2% 24% 39
3 GLVT 76137 0% 63% 10
4 EQUIPE HYDRU METALL 73099 0% 100% 6
5 MECAN MAT PROCEDES 68617 1% 43% 13
6 LMMP 67675 0% 56% 10
7 FRONTIER PL SCI 66327 0% 78% 7
8 NEW ENERGY MAT CHEM 65494 2% 9% 61
9 INTEGRATED EXPLOITAT BAIYUN OBO MULTIMET 53045 1% 31% 14
10 STATE METASTABLE MAT SCI TECHNOL 49806 4% 5% 89

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 JOURNAL OF ALLOYS AND COMPOUNDS 152080 28% 2% 708
2 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 63375 13% 2% 320
3 RARE METAL MATERIALS AND ENGINEERING 27472 7% 1% 167
4 JOURNAL OF RARE EARTHS 18513 3% 2% 79
5 JOURNAL OF POWER SOURCES 18341 7% 1% 186
6 TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 6416 3% 1% 66
7 JOURNAL OF THE ELECTROCHEMICAL SOCIETY 5679 5% 0% 120
8 ELECTROCHIMICA ACTA 5385 4% 0% 111
9 JOURNAL OF THE LESS-COMMON METALS 3761 1% 1% 37
10 JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS 3070 1% 2% 14

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 HYDROGEN STORAGE ALLOY 3477949 20% 56% 510 Search HYDROGEN+STORAGE+ALLOY Search HYDROGEN+STORAGE+ALLOY
2 METAL HYDRIDE ELECTRODE 2124396 8% 85% 205 Search METAL+HYDRIDE+ELECTRODE Search METAL+HYDRIDE+ELECTRODE
3 NI MH BATTERY 1496919 8% 64% 192 Search NI+MH+BATTERY Search NI+MH+BATTERY
4 NICKEL METAL HYDRIDE BATTERY 712594 5% 50% 117 Search NICKEL+METAL+HYDRIDE+BATTERY Search NICKEL+METAL+HYDRIDE+BATTERY
5 ELECTROCHEMICAL PROPERTIES 498344 17% 10% 422 Search ELECTROCHEMICAL+PROPERTIES Search ELECTROCHEMICAL+PROPERTIES
6 ELECTROCHEMICAL REACTIONS 432226 5% 30% 119 Search ELECTROCHEMICAL+REACTIONS Search ELECTROCHEMICAL+REACTIONS
7 HIGH RATE DISCHARGEABILITY 382667 1% 90% 35 Search HIGH+RATE+DISCHARGEABILITY Search HIGH+RATE+DISCHARGEABILITY
8 HYDROGEN ABSORBING MATERIALS 360907 5% 22% 136 Search HYDROGEN+ABSORBING+MATERIALS Search HYDROGEN+ABSORBING+MATERIALS
9 LA MG NI SYSTEM ELECTRODE ALLOY 304577 1% 100% 25 Search LA+MG+NI+SYSTEM+ELECTRODE+ALLOY Search LA+MG+NI+SYSTEM+ELECTRODE+ALLOY
10 METAL HYDRIDES 229436 7% 11% 167 Search METAL+HYDRIDES Search METAL+HYDRIDES

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 TLIHA, M , KHALDI, C , BOUSSAMI, S , FENINECHE, N , EL-KEDIM, O , MATHLOUTHI, H , LAMLOUMI, J , (2014) KINETIC AND THERMODYNAMIC STUDIES OF HYDROGEN STORAGE ALLOYS AS NEGATIVE ELECTRODE MATERIALS FOR NI/MH BATTERIES: A REVIEW.JOURNAL OF SOLID STATE ELECTROCHEMISTRY. VOL. 18. ISSUE 3. P. 577 -593 153 72% 19
2 LIU, YF , CAO, YH , HUANG, L , GAO, MX , PAN, HG , (2011) RARE EARTH-MG-NI-BASED HYDROGEN STORAGE ALLOYS AS NEGATIVE ELECTRODE MATERIALS FOR NI/MH BATTERIES.JOURNAL OF ALLOYS AND COMPOUNDS. VOL. 509. ISSUE 3. P. 675 -686 106 90% 124
3 YOUNG, KH , NEI, J , (2013) THE CURRENT STATUS OF HYDROGEN STORAGE ALLOY DEVELOPMENT FOR ELECTROCHEMICAL APPLICATIONS.MATERIALS. VOL. 6. ISSUE 10. P. 4574-4608 134 73% 35
4 LIU, YF , PAN, HG , GAO, MX , WANG, QD , (2011) ADVANCED HYDROGEN STORAGE ALLOYS FOR NI/MH RECHARGEABLE BATTERIES.JOURNAL OF MATERIALS CHEMISTRY. VOL. 21. ISSUE 13. P. 4743 -4755 116 73% 135
5 GRAY, EM , LIU, W , WEBB, CJ , (2016) REVIEW OF HYDROGEN STORAGE IN AB(3) ALLOYS TARGETING STATIONARY FUEL CELL APPLICATIONS.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 41. ISSUE 5. P. 3485 -3507 106 70% 5
6 LIU, JJ , HAN, SM , LI, Y , ZHANG, L , ZHAO, YM , YANG, SQ , LIU, BZ , (2016) PHASE STRUCTURES AND ELECTROCHEMICAL PROPERTIES OF LA-MG-NI-BASED HYDROGEN STORAGE ALLOYS WITH SUPERLATTICE STRUCTURE.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. VOL. 41. ISSUE 44. P. 20261 -20275 82 94% 0
7 KLEPERIS, J , WOJCIK, G , CZERWINSKI, A , SKOWRONSKI, J , KOPCZYK, M , BELTOWSKA-BRZEZINSKA, M , (2001) ELECTROCHEMICAL BEHAVIOR OF METAL HYDRIDES.JOURNAL OF SOLID STATE ELECTROCHEMISTRY. VOL. 5. ISSUE 4. P. 229 -249 123 72% 194
8 YOUNG, K , CHAO, B , HUANG, B , NEI, J , (2014) STUDIES ON THE HYDROGEN STORAGE CHARACTERISTIC OF LA1-XCEX (NICOMNALCUSIZR)(5.7) WITH A B2 SECONDARY PHASE.JOURNAL OF ALLOYS AND COMPOUNDS. VOL. 585. ISSUE . P. 760 -770 69 92% 5
9 YOUNG, K , KOCH, J , OUCHI, T , BANIK, A , FETCENKO, MA , (2010) STUDY OF AB(2) ALLOY ELECTRODES FOR NI/MH BATTERY PREPARED BY CENTRIFUGAL CASTING AND GAS ATOMIZATION.JOURNAL OF ALLOYS AND COMPOUNDS. VOL. 496. ISSUE 1-2. P. 669 -677 72 96% 4
10 YOUNG, K , OUCHI, T , HUANG, B , (2014) EFFECTS OF VARIOUS ANNEALING CONDITIONS ON (ND, MG, ZR)(NI, AL, CO)(3.74) METAL HYDRIDE ALLOYS.JOURNAL OF POWER SOURCES. VOL. 248. ISSUE . P. 147-153 57 95% 17

Classes with closest relation at Level 1


Rank Class id link
1 19627 BCC ALLOYS//TI CR V ALLOY//CENT RADIOISOTOPE SCI
2 1828 METAL HYDRIDES//LANI5//JOURNAL OF THE LESS-COMMON METALS
3 26685 TI ZR NI ALLOY//TI ZR NI//TI ZR NI CU ALLOY
4 600 MAGNESIUM HYDRIDE//HYDROGEN STORAGE//HYDROGEN STORAGE MATERIALS
5 8180 NICKEL HYDROXIDE//NICKEL HYDROXIDE ELECTRODE//ALPHA NICKEL HYDROXIDE
6 11726 MET HYDRIDES//CARBOHYDRIDE//MET HYBRIDES
7 9125 PD RH ALLOYS//LIMITED VOLUME ELECTRODES//HYDROGEN ABSORPTION
8 6556 HYDROGEN EVOLUTION REACTION//HYDROGEN EVOLUTION//ALKALINE WATER ELECTROLYSIS
9 13502 YMN2//LAVES PHASE//LANTHANIDE INTERMETALLIC COMPOUND
10 15445 HYDROGEN AS A PROBE//PHASE MECHANISM//HYDROGEN INTERNAL FRICTION PEAK

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