Item:OSW7d5ef82cc31c49dd99a0df7439fe21dd - Revision history

0000-0002-8758-6109 at 17:05, 21 January 2025

2025-01-21T17:05:07Z

jsondata
← Older revision		Revision as of 17:05, 21 January 2025
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0000-0002-8758-6109 at 16:58, 21 January 2025

2025-01-21T16:58:42Z

jsondata
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0000-0002-8758-6109 at 16:57, 21 January 2025

2025-01-21T16:57:10Z

← Older revision		Revision as of 16:57, 21 January 2025
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	=== Challenges in Metal-Ion Battery Chemistry ===		=== Challenges in Metal-Ion Battery Chemistry ===

	So first of all, as you know, metal-ion battery chemistry has in fact a series of challenges, because we have the materials that the crystallochemists develop that will be involved in an electrode with carbon additive binders on the current collectors, but then this one will be integrated in a battery, and this battery will deliver a capacity over a number of cycles. So it can be, of course, the autonomy for a car, for instance, but depending on the use of this battery, of course, we will have more or less fast ageing, depending on the temperature, depending on the C-rate of charge and so on. So we have a lot of reactions that can occur in a battery as illustrated here. I will not go into detail, but what we have to retain is a battery is a metastable system and, I would say, the material by itself, so here the positive electrodes, but also with this interaction with the electrolyte, the electrolyte itself being also metastable.		So first of all, as you know, metal-ion battery chemistry has in fact a series of challenges, because we have the materials that the crystallochemists develop that will be involved in an electrode with carbon additive binders on the current collectors, but then this one will be integrated in a battery, and this battery will deliver a capacity over a number of cycles. So it can be, of course, the autonomy for a car, for instance, but depending on the use of this battery, of course, we will have more or less fast ageing, depending on the temperature, depending on the C-rate of charge and so on. So we have a lot of reactions that can occur in a battery as illustrated here. I will not go into detail, but what we have to retain is a battery is a metastable system and, I would say, the material by itself, so here the positive electrodes, but also with this interaction with the electrolyte, the electrolyte itself being also metastable.

	So we have really to understand all the reactions involving the material, its interfaces and I would say even the cross-talking with the other electrodes in order to optimise the chemistry of a battery. === Material Research and Technology ===		So we have really to understand all the reactions involving the material, its interfaces and I would say even the cross-talking with the other electrodes in order to optimise the chemistry of a battery.
	So of course, in our group, we developed material research in order to try to respond to these challenges, and for instance, to propose new materials for high energy densities, for fast-charging safeties and taking also into account the raw materials availability. So as mentioned, I will focus today mainly on that point, mentioning some materials for lithium-ion batteries, but also some new technologies, such as sodium-ion batteries. === Generations of Positive Electrode Materials ===
			=== Material Research and Technology ===

			So of course, in our group, we developed material research in order to try to respond to these challenges, and for instance, to propose new materials for high energy densities, for fast-charging safeties and taking also into account the raw materials availability. So as mentioned, I will focus today mainly on that point, mentioning some materials for lithium-ion batteries, but also some new technologies, such as sodium-ion batteries.

			=== Generations of Positive Electrode Materials ===

	So of course the batteries are made of two electrodes and an electrolyte, and you have different scales you can look at, here I would say the electrode, here the material, and in our case we are more focused, I would say today, on this scale here, the crystal structures and the atomic and electronic structures of the materials, of course in interactions of the electrodes with the electrolytes.		So of course the batteries are made of two electrodes and an electrolyte, and you have different scales you can look at, here I would say the electrode, here the material, and in our case we are more focused, I would say today, on this scale here, the crystal structures and the atomic and electronic structures of the materials, of course in interactions of the electrodes with the electrolytes.

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	And at first the motivation was really to go towards, I would say, longer life, more safety for all these materials here, moving from lithium cobalt oxide to NCA, nickel cobalt aluminium, and NMC, nickel manganese cobalt. And in that case, we were really playing with the cationic redox. Now in order to answer to more and more demanding applications in energy, we are also moving to other chemistries, such as lithium-rich layered oxides, rock-salt type structures and high-voltage spinel. And in that case, here for the lithium-rich and layered oxides, we are even jumping in structures, compositions where we have cationic redox and in addition, anionic redox.		And at first the motivation was really to go towards, I would say, longer life, more safety for all these materials here, moving from lithium cobalt oxide to NCA, nickel cobalt aluminium, and NMC, nickel manganese cobalt. And in that case, we were really playing with the cationic redox. Now in order to answer to more and more demanding applications in energy, we are also moving to other chemistries, such as lithium-rich layered oxides, rock-salt type structures and high-voltage spinel. And in that case, here for the lithium-rich and layered oxides, we are even jumping in structures, compositions where we have cationic redox and in addition, anionic redox.

	At the present time, we are all highly interested in these materials due to the fact that all these materials answer to another constraint when we develop materials, its resources. And here you can see that all of them are rich in manganese, lithium iron manganese phosphate, a high-voltage spinel that is rich in manganese and nickel and all these lithium-rich are also rich in manganese. So today, in fact, I will highlight our expertise and new results we obtained on these LNMO materials, these manganese-rich materials. === Sodium-Ion Technology ===		At the present time, we are all highly interested in these materials due to the fact that all these materials answer to another constraint when we develop materials, its resources. And here you can see that all of them are rich in manganese, lithium iron manganese phosphate, a high-voltage spinel that is rich in manganese and nickel and all these lithium-rich are also rich in manganese. So today, in fact, I will highlight our expertise and new results we obtained on these LNMO materials, these manganese-rich materials.

			=== Sodium-Ion Technology ===

	And then I will move to sodium-ion technology.		And then I will move to sodium-ion technology.

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	And we had demonstrated also at that time a very long cycling for this material. So stability upon cycling. So just a few slides on this technology that I obtained with the courtesy of Tiamat. So for this technology, you can really do a fast charging, high-power density and superior safety of this material.		And we had demonstrated also at that time a very long cycling for this material. So stability upon cycling. So just a few slides on this technology that I obtained with the courtesy of Tiamat. So for this technology, you can really do a fast charging, high-power density and superior safety of this material.

	We can really store the battery at 0 volt without damaging the performance, and no fire, no thermal runaway, long lifetime and based on abundant materials. So here it was a work performed, I would say, from the material proposed first by the solid-state chemists brought to maturation and now integrated in a technology that is developed by the industry. So I will finish by highlighting two recent results obtained in our group, one on manganese and substituted NVPF and one on new NaSICON materials. === Recent Advances ===		We can really store the battery at 0 volt without damaging the performance, and no fire, no thermal runaway, long lifetime and based on abundant materials. So here it was a work performed, I would say, from the material proposed first by the solid-state chemists brought to maturation and now integrated in a technology that is developed by the industry. So I will finish by highlighting two recent results obtained in our group, one on manganese and substituted NVPF and one on new NaSICON materials.

			=== Recent Advances ===

	So in order to show you that solid-state chemists are also, I would say, a force of proposition for new materials again for this sodium-ion technology.		So in order to show you that solid-state chemists are also, I would say, a force of proposition for new materials again for this sodium-ion technology.

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	So then I wanted to conclude this part by highlighting that it's only the characterization in depth of the materials, I would say from the local to the long-run structures and knowledge of defect that allows you to understand the materials. We have also a lot of non-equilibrium phase and mechanisms that are observed. And so for that we need the development of in situ cells and we are really still able to identify original mechanisms, new families of materials of interest for sodium-ion batteries. And I will conclude my talk by giving two perspectives to say that very recently, we have studied all these mixed anion chemistries, here with phosphate, tavorite structures as you can see here for lithium, NVPF structures for sodium and KTP-type structures for potassium-ion batteries.		So then I wanted to conclude this part by highlighting that it's only the characterization in depth of the materials, I would say from the local to the long-run structures and knowledge of defect that allows you to understand the materials. We have also a lot of non-equilibrium phase and mechanisms that are observed. And so for that we need the development of in situ cells and we are really still able to identify original mechanisms, new families of materials of interest for sodium-ion batteries. And I will conclude my talk by giving two perspectives to say that very recently, we have studied all these mixed anion chemistries, here with phosphate, tavorite structures as you can see here for lithium, NVPF structures for sodium and KTP-type structures for potassium-ion batteries.

	So these chemistries, not only the cation chemistry, but also the anion chemistry, are really a source of new materials for batteries, because depending on the composition in anion, you can really play on the voltage and on the electrochemical curve, I would say the signature, and you can play on the potential of your batteries, here lithium, sodium or potassium. === Conclusion ===		So these chemistries, not only the cation chemistry, but also the anion chemistry, are really a source of new materials for batteries, because depending on the composition in anion, you can really play on the voltage and on the electrochemical curve, I would say the signature, and you can play on the potential of your batteries, here lithium, sodium or potassium.
			=== Conclusion ===

	And I will finish this really by mentioning also that it's worth, of course, to consider, I would say, much more abundant materials such as iron polyanionic materials, and especially here I focus on sulphate and sulphate phosphate materials. We found new phases recently and, of course, the challenge here is really to stabilise these materials and to optimise these materials in order to have very good performances. But they are very interesting, because here we have sodium, iron and sulphur or phosphate systems, so only abundant elements.		And I will finish this really by mentioning also that it's worth, of course, to consider, I would say, much more abundant materials such as iron polyanionic materials, and especially here I focus on sulphate and sulphate phosphate materials. We found new phases recently and, of course, the challenge here is really to stabilise these materials and to optimise these materials in order to have very good performances. But they are very interesting, because here we have sodium, iron and sulphur or phosphate systems, so only abundant elements.

0000-0002-8758-6109 at 16:55, 21 January 2025

2025-01-21T16:55:48Z

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0000-0002-8758-6109 at 16:50, 21 January 2025

2025-01-21T16:50:31Z

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0000-0002-8758-6109: add transcript

2025-01-21T16:37:53Z

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@@ Line 1: / Line 1: @@
 This seminar, featuring guest speaker '''Laurence Croguennec''', will highlight the latest research in battery materials, mechanisms, and solid-state battery applications. Laurence Croguennec is '''CNRS Research Director at the Institut de Chimie de la Matière Condensée in Bordeaux''' (ICMCB-CNRS, France). She graduated (PhD) in 1996 from Nantes University at the Institut des Matériaux Jean Rouxel (France) and spent one year as a Post-Doc at the Bonn University (Germany).
-=== Recording ===
+== Recording ==
-=== AI-Generated Content Disclaimer ===
+{{#ev:youtube|qH4eblGLuro|||Battery 2030+ Excellence Seminar, Solid state chemistry, innovations -Laurence Croguennec}}
 This article includes content generated with the assistance of AI technology to summarize and present event information accurately. For the most detailed and current information, refer to the official [https://battery2030.eu/news/happenings-events/battery-2030-excellence-seminar-28th-of-november/ Battery 2030+ event page].

0000-0002-8758-6109: update page structure

2025-01-21T16:30:15Z

update page structure

← Older revision		Revision as of 16:30, 21 January 2025
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	~~The Battery 2030+ Excellence Seminar will focus on the advancements in solid-state chemistry and its role in innovating metal-ion battery technology.~~ This seminar, featuring guest speaker Laurence Croguennec, will highlight the latest research in battery materials, mechanisms, and solid-state battery applications.		This seminar, featuring guest speaker '''Laurence Croguennec''', will highlight the latest research in battery materials, mechanisms, and solid-state battery applications. Laurence Croguennec is '''CNRS Research Director at the Institut de Chimie de la Matière Condensée in Bordeaux''' (ICMCB-CNRS, France). She graduated (PhD) in 1996 from Nantes University at the Institut des Matériaux Jean Rouxel (France) and spent one year as a Post-Doc at the Bonn University (Germany).

	=== ~~Event Details~~ ===		=== Recording ===
	* '''Date''': November 28, 2024		=== Transcript ===
	* '''Time''': 15:30 - 17:00 CET
	* '''Format''': Online Seminar
	* '''Guest Speaker''': Laurence Croguennec, CNRS Research Director at the Institut de Chimie de la Matière Condensée, Bordeaux University, France

	=== ~~Presentation Highlights~~ ===
	* '''Topic''': “Solid state chemistry, a source of innovations in the metal-ion battery field”
	* '''Speaker Background''': Laurence Croguennec has over 25 years of expertise in crystal chemistry of electrode materials for metal-ion and all-solid-state batteries. She leads research into layered and spinel oxides, polyanionic-type positive electrode materials, and collaborates with European neutron and synchrotron facilities for in situ characterization of battery materials. She has co-authored over 165 publications, contributed to 5 book chapters, and holds 8 patents in battery technology.

	==~~= Agenda (CET) ===~~
	* '''15:30 - 15:35''': Introduction by Erik Berg
	* '''15:35 - 16:30''': Presentation - “Solid state chemistry, a source of innovations in the metal-ion battery field” by Laurence Croguennec
	* '''16:30 - 16:50''': Q&A and Summary by Erik Berg

	~~=== How to Register ===~~
	Register for this insightful seminar on the official Battery 2030+ website: [https://battery2030.eu/news/happenings-events/battery-2030-excellence-seminar-28th-of-november/ Battery 2030+ Excellence Seminar Registration].

	=== AI-Generated Content Disclaimer ===		=== AI-Generated Content Disclaimer ===
	This article includes content generated with the assistance of AI technology to summarize and present event information accurately. For the most detailed and current information, refer to the official [https://battery2030.eu/news/happenings-events/battery-2030-excellence-seminar-28th-of-november/ Battery 2030+ event page].		This article includes content generated with the assistance of AI technology to summarize and present event information accurately. For the most detailed and current information, refer to the official [https://battery2030.eu/news/happenings-events/battery-2030-excellence-seminar-28th-of-november/ Battery 2030+ event page].

0000-0002-8758-6109 at 16:26, 21 January 2025

2025-01-21T16:26:58Z

jsondata
← Older revision		Revision as of 16:26, 21 January 2025
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	"text": "~~Battery 2030~~+ Excellence Seminar ~~November 2024~~",		"text": "Battery2030+ Excellence Seminar - Laurence Croguennec",
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	"text": "~~A webinar hosted by Battery 2030~~+",		"text": "An instance of the Battery2030+ Excellence Seminar series featuring Laurence Croguennec on the topic, “Solid state chemistry, a source of innovations in the metal-ion battery field”",
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0000-0002-8758-6109 at 09:07, 14 November 2024

2024-11-14T09:07:21Z

jsondata
← Older revision		Revision as of 09:07, 14 November 2024
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	"end_date": "2024-11-28",		"end_date": "2024-11-28",
	"url": "https://battery2030.eu/news/happenings-events/battery-2030-excellence-seminar-28th-of-november/",		"url": "https://battery2030.eu/news/happenings-events/battery-2030-excellence-seminar-28th-of-november/",
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0000-0002-8758-6109 at 16:28, 13 November 2024

2024-11-13T16:28:07Z

jsondata
← Older revision		Revision as of 16:28, 13 November 2024
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	"label": [		"label": [
	{		{
	"text": "Battery 2030+ Excellence Seminar",		"text": "Battery 2030+ Excellence Seminar November 2024",
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