chemistry

Laurence Croguennec

Laurence Croguennec is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Laurence Croguennec rather than just read about it. In short: Laurence Croguennec is a French chemist and electric battery inventor. She is a director of research for the French National Centre for Scientific Research (CNRS) and associate director of the Institute for Solid State Chemistry Bordeaux (ICMCB), a laboratory shared between CNRS and the University of Bordeaux.

Key takeaways

Laurence Croguennec belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Laurence Croguennec to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Laurence Croguennec from memory before moving on to harder problems.

Reference excerpt

Laurence Croguennec is a French chemist and electric battery inventor. She is a director of research for the French National Centre for Scientific Research (CNRS) and associate director of the Institute for Solid State Chemistry Bordeaux (ICMCB), a laboratory shared between CNRS and the University of Bordeaux.

Research Croguennec's research in solid-state chemistry and crystal chemistry focuses on materials for the electrodes of metal-ion batteries including lithium-ion batteries and sodium-ion batteries. This work included the development of an early prototype rechargeable sodium-ion battery with a layered oxide of sodium and titanium as its negative electrode, and has included the first transmission electron microscope images of individual lithium atoms.

Education and career Croguennec received a doctorate in 1996 from Nantes University, through research at the Institut des Matériaux de Nantes Jean Rouxel, a collaborative research institute of CNRS and Nantes University. After postdoctoral research at the University of Bonn in Germany, she became a CNRS researcher in 1997, affiliated with ICMCB. She became the head of a research group on materials for batteries there in 2004.

Recognition Croguennec was a 2025 recipient of the CNRS Silver Medal. In 2025 the International Society of Electrochemistry gave her their ISE Prize for Electrochemical Energy Conversion and Storage of Division 3 in Honour of Bruno Scrosati, "for significant advancement of the understanding and development of lithium-, sodium-, and potassium-ion batteries, as well as all-solid-state systems with a strong focus on sustainability and future battery technologies".

References

External links Laurence Croguennec publications indexed by Google Scholar

Worked examples

Example 1 — a first encounter with Laurence Croguennec

Start with the simplest possible case. Write down what Laurence Croguennec claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Laurence Croguennec before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Laurence Croguennec ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Laurence Croguennec

In research: Laurence Croguennec appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Laurence Croguennec in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Laurence Croguennec is common in secondary-school and first-year university syllabi. It links to neighbouring topics Battery inventors, French chemists, French women chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Laurence Croguennec outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Laurence Croguennec in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Laurence Croguennec means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Laurence Croguennec out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Laurence Croguennec in simple terms?

Why does Laurence Croguennec matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Laurence Croguennec?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Laurence Croguennec.