Temperature Gradient Enhancement of Solid State Battery Performance

1982 ◽  
Vol 20 ◽  
Author(s):  
Bruce K. Borey ◽  
Frederick H. Horne
Keyword(s):  
Solid State ◽  
Temperature Gradient ◽  
Cerium Oxide ◽  
Nonequilibrium Thermodynamics ◽  
Electronic Conductivity ◽  
Temperature Gradients ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
Battery Discharge ◽  
Gradient Enhancement

ABSTRACTThe equations of nonequilibrium thermodynamics are used to investigate how temperature gradients may be utilized to enhance performance of solid state batteries. One result is that the efficiency of a battery with doped cerium oxide as the electrolyte may be increased by imposition of a temperature gradient. This may lead to greater use of electrolytes of appreciable electronic conductivity. Moreover, temperature gradients may be used to increase mobile ion diffusivity in intercalation electrodes during battery discharge and recharge.

scholarly journals On the Feasibility of All-solid-state Batteries with LLZO as a Single Electrolyte

2021 ◽  
Author(s):  
Kostiantyn V. Kravchyk ◽  
Dogan Tarik Karabay ◽  
Maksym V. Kovalenko
Keyword(s):  
Solid State ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Metal Anode ◽  
Solid State Batteries ◽  
Li Ion ◽  
All Solid State Batteries ◽  
Battery Discharge ◽  
Power Densities ◽  
Areal Capacity

Abstract Replacement of Li-ion liquid-state electrolytes by solid-state counterparts in a Li-ion battery (LIB) is a major research objective as well as an urgent priority for the industry, as it enables the use of a Li metal anode and provides new opportunities to realize safe, non-flammable, and temperature-resilient batteries. Among the plethora of solid-state electrolytes (SSEs) investigated, garnet-type Li-ion electrolytes based on cubic Li7La3Zr2O12 (LLZO) are considered the most appealing candidates for the development of future solid-state batteries because of their low electronic conductivity of ca. 10−8 S cm−1 (RT) and a wide electrochemical operation window of 0 ‒ 6 V vs. Li+/Li. However, high LLZO density (5.1 g cm-3) and its lower level of Li-ion conductivity (up to 1 mS cm−1 at RT) compared to liquid electrolytes (1.28 g cm-3; ca. 10 mS cm−1 at RT) still raise the question as to the feasibility of using solely LLZO as an electrolyte for achieving competitive energy and power densities. In this work, we analyzed the energy densities of Li-garnet all-solid-state batteries based solely on LLZO SSE by modeling their Ragone plots using LiCoO2 as the model cathode material. This assessment allowed us to identify values of the LLZO thickness, cathode areal capacity, and LLZO content in the solid-state cathode required to match the energy density of conventional lithium-ion batteries (ca. 180 Wh kg-1 and 497 Wh L-1) at the power densities of 200 W kg-1 and 600 W L-1, corresponding to ca. 1h of battery discharge time (1C). We then discuss key challenges in the practical deployment of LLZO SSE in the fabrication of Li-garnet all-solid-state batteries.

Solid-State Battery Modeling Case Studies for the Analysis of a Micro-Robot Power System

2018 ◽  
Author(s):  
Kendall Teichert ◽  
Kenn Oldham
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Case Studies ◽  
Battery Modeling ◽  
Simulation Techniques ◽  
Lumped Parameter ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
Basic Series ◽  
Battery Discharge

Recent works by the authors have presented modeling and simulation techniques for analyzing repeated fast dynamic loading of thin-film solid-state batteries. These techniques were developed to address timescale issues in modeling battery discharge under these types of loads. In this paper, we explore various consequences of battery usage in potential micro-robotic applications based on use of these modeling techniques in a series of case studies. Impact of electrochemical versus simple lumped parameter battery modeling is first examined. This is followed by projection of battery performance in basic series versus boost converter arrangements to supply thin-film piezoelectric robotic actuators. Potentially advantageous battery and conversion circuit configurations are identified.

scholarly journals Compatibility assessment of solid ceramic electrolytes and active materials based on thermal dilatation for the development of solid-state batteries

2021 ◽  
Author(s):  
Marc Bertrand ◽  
Steeve Rousselot ◽  
David Ayme-Perrot ◽  
Mickael Dolle
Keyword(s):  
Solid State ◽  
Layered Structure ◽  
Active Materials ◽  
Inorganic Oxide ◽  
All Ceramic ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
Ceramic Electrolytes ◽  
Thermal Dilatation

Assembling an all ceramic solid-state battery (ACSSB) using inorganic oxide electrolytes is challenging. The battery must have a continuous layered structure with a thin dense electrolyte separator and interfaces between...

Study on Li0.33La0.55TiO3 Solid Electrolyte with High Ionic Conductivity and Its Application in Flexible All Solid-State Battery

Nanoscale ◽  
2021 ◽  
Author(s):  
Feihu Tan ◽  
Hua An ◽  
Ning Li ◽  
Jun Du ◽  
Zhengchun Peng
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
High Ionic Conductivity ◽  
Energy Sources ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries

As flexible all-solid-state batteries are highly safe and lightweight, they can be considered as candidates for wearable energy sources. However, their performance needs to be first improved, which can be...

scholarly journals Investigations into the superionic glass phase of Li4PS4I for improving the stability of high-loading all-solid-state batteries

2020 ◽  
Vol 7 (20) ◽  
pp. 3953-3960
Author(s):  
Florian Strauss ◽  
Jun Hao Teo ◽  
Jürgen Janek ◽  
Torsten Brezesinski
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Glass Phase ◽  
High Loading ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
The Stability ◽  
Superionic Glass ◽  
Battery Cells

A glassy 1.5Li2S–0.5P2S5–LiI solid electrolyte enables stable cycling of high-loading all-solid-state battery cells with an NCM622 cathode and a LTO anode.

Chemo-mechanical expansion of lithium electrode materials – on the route to mechanically optimized all-solid-state batteries

2018 ◽  
Vol 11 (8) ◽  
pp. 2142-2158 ◽  
Author(s):  
Raimund Koerver ◽  
Wenbo Zhang ◽  
Lea de Biasi ◽  
Simon Schweidler ◽  
Aleksandr O. Kondrakov ◽  
...  
Keyword(s):  
Solid State ◽  
Electrode Materials ◽  
Local Stress ◽  
Stress Development ◽  
Lithium Electrode ◽  
Particle Cracking ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
Rigid Environment

The volume effects of electrode materials can cause local stress development, contact loss and particle cracking in the rigid environment of a solid-state battery.

scholarly journals Single-step ball milling synthesis of highly Li+ conductive Li5.3PS4.3ClBr0.7 glass ceramic electrolyte enables low-impedance all-solid-state batteries

2021 ◽  
Author(s):  
Marvin Cronau ◽  
Marvin Szabo ◽  
Bernhard Roling
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Ball Milling ◽  
Glass Ceramic ◽  
Single Step ◽  
Ceramic Electrolyte ◽  
Conductive Glass ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries

Single-step ball milling synthesis of a highly conductive glass ceramic solid electrolyte enables a low-impedance all-solid-state battery.

scholarly journals The Devil is in the Defects: Electronic Conductivity in Solid Electrolytes

2020 ◽  
Author(s):  
Prashun Gorai ◽  
Theodosios Famprikis ◽  
Baltej Singh Gill ◽  
Vladan Stevanovic ◽  
Pieremanuele Canepa
Keyword(s):  
Solid State ◽  
Solid Electrolytes ◽  
Short Circuit ◽  
Electronic Conductivity ◽  
Primary Source ◽  
Complex Oxide ◽  
Quantitative Agreement ◽  
Secondary Phases ◽  
Solid State Batteries ◽  
General Defect

Rechargeable solid-state batteries continue to gain prominence due to their increased safety. However, a number of outstanding challenges have prevented their adoption in mainstream technology. In this study, we reveal the origins of electronic conductivity (s<sub>e</sub>) in solid electrolytes (SEs), which is deemed responsible for solid-state battery degradation, as well as more drastic short-circuit and failure. Using first-principles defect calculations and physics-based models, we predict s<sub>e</sub> in three topical SEs: Li<sub>6</sub>PS<sub>5</sub>Cl and Li<sub>6</sub>PS<sub>5</sub>I argyrodites, and Na<sub>3</sub>PS<sub>4</sub> for post-Li batteries. We treat SEs as materials with finite band gaps and apply the defect theory of semiconductors to calculate the native defect concentrations and associated electronic conductivities. Our experimental measurements of the band gap of tetragonal Na<sub>3</sub>PS<sub>4</sub> confirm our predictions. The quantitative agreement of the predicted s<sub>e</sub> in these three materials and those measured experimentally strongly suggests that self-doping via native defects is the primary source of electronic conductivity in SEs. In particular, we find that Li<sub>6</sub>PS<sub>5</sub>X are <i>n</i>-type (electrons are majority carriers), while Na<sub>3</sub>PS<sub>4</sub> is <i>p</i>-type (holes). Importantly, the predicted values set the lower bound for s<sub>e</sub> in SEs. We suggest general defect engineering strategies pertaining to synthesis protocols to reduce s<sub>e</sub> in SEs, and thereby, curtailing the degradation of solid-state batteries. The methodology presented here can be extended to investigate s<sub>e</sub> in secondary phases that typically form at electrode-electrolyte interfaces, as well as to complex oxide-based SEs.

scholarly journals Blocking Lithium Dendrite Growth in Solid-State Batteries with an Ultrathin Amorphous Li-La-Zr-O Solid Electrolyte

2020 ◽  
Author(s):  
Jordi Sastre ◽  
Moritz H. Futscher ◽  
Lea Pompizi ◽  
Abdessalem Aribia ◽  
Agnieszka Priebe ◽  
...  
Keyword(s):  
Solid State ◽  
Electronic Conductivity ◽  
High Capacity ◽  
Dendrite Growth ◽  
Potential Candidate ◽  
Sputtering Deposition ◽  
Lithium Garnet ◽  
Solid State Batteries ◽  
Current Densities ◽  
Lithium Dendrite

Lithium garnet Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZO) electrolyte is a potential candidate for the development of solid-state batteries with lithium metal as high-capacity anode. But ceramic LLZO in the form of pellets or polycrystalline films can still suffer from lithium dendrite penetration because of surface and bulk inhomogeneities and grain boundaries with non-negligible electronic conductivity. In contrast, the amorphous phase of LLZO (aLLZO) possesses a grain-boundary-free microstructure with moderate ionic conductivity (10<sup>-7</sup> S cm<sup>-1</sup>) and high electronic insulation (10<sup>-14</sup> S cm<sup>-1</sup>), which in the form of thin coatings can offer resistance to lithium dendrite growth. We explore the electrochemical properties and applications of aLLZO ultrathin films prepared by sputtering deposition. The defect-free and conformal nature of the films enables microbatteries with an electrolyte thickness as low as 70 nm, which withstand charge-discharge at 0.2 mA cm<sup>-2</sup> for over 500 cycles. In Li/aLLZO/Li symmetric cells, plating-stripping at current densities up to 3.2 mA cm<sup>-2</sup> shows no signs of lithium penetration. Finally, we show that the application of aLLZO as a coating on LLZO ceramic pellets significantly impedes the formation of Li dendrites.

Sign in / Sign up

Export Citation Format

Share Document