자료유형  

 학위논문

Control Number  

0016932657

International Standard Book Number  

9798379835514

Dewey Decimal Classification Number  

620

Main Entry-Personal Name  

Campos, Juan Alfonso.

Publication, Distribution, etc. (Imprint  

[S.l.] : Purdue University., 2020

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2020

Physical Description  

1 online resource(101 p.)

General Note  

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

General Note  

Advisor: Garcia, R. Edwin.

Dissertation Note  

Thesis (Ph.D.)--Purdue University, 2020.

Restrictions on Access Note  

This item must not be sold to any third party vendors.

Summary, Etc.  

요약A thermodynamically consistent coarsed-grained phase field model was developed to find the conditions under which a heterogeneous porous electrode can be treated as homogeneous in the description of Li-ions in rechargeable batteries. Four regimes of behavior under which the transport phenomena can be homogenized to describe porous LIBs were identified: regime (a), where the model is inaccurate, for physically accessible particle packings of aspect ratios smaller than c/a = 0.5 and electrode porosities between 0.34 to 0.45; regime (b), where the model is valid, for particles of aspect ratios greater than c/a = 0.7 and electrode porosities greater than 0.35; regime (c), where the model is valid, but the microstructures are physically inaccessible, and correspond to particles with aspect ratios greater than c/a = 0.7 and electrode porosities smaller than 0.34; and regime (d), where the model is invalid and the porous microstructures are physically inaccessible, and correspond to particles with aspect ratios smaller than c/a = 1 and electrode porosities smaller than 0.34.The developed formulation was applied to the graphite|LixNi1/3Mn1/3Co1/3O2system to analyze the effect of microstructure and coarsed-grained long-range chemomechanical effects on the electrochemical behavior. Specifically, quantifiable lithium distribution populations in the cathode, as a result of long range interactions of the diffuse interface, charge effects and mechanical stresses were identified: i) diffusion limited population due to negligible composition gradients, ii) stress-induced population as a result of chemically-induced stresses, and iii) lithiation-induced population, as a consequence of the electrochemical potential gradients.

Subject Added Entry-Topical Term  

Random access memory.

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Graphite.

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Electrodes.

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Ions.

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Chemistry.

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Fluorides.

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Batteries.

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Energy storage.

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Microstructure.

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Energy resources.

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Electric currents.

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Lithium.

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Porosity.

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Polymers.

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Polyethylene.

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Electrolytes.

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Lagrange multiplier.

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Electricity.

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Particle size.

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Alternative energy sources.

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Alternative energy.

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Energy.

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Mathematics.

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Polymer chemistry.

Added Entry-Corporate Name  

Purdue University.

Host Item Entry  

Dissertations Abstracts International. 85-01B.

Host Item Entry  

Dissertation Abstract International

Electronic Location and Access  

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Control Number  

joongbu:643291