Saft launches an all-solid-state battery line in Bordeaux, a first in France

Les chiffres sont ceux de l’entreprise.

Être in the present is est for a singular subject and sont for a plural one. It describes nature, state or place (“is”, “is located”). If what follows (the attribute) is a noun, adjective or prepositional phrase, it is not a passive. If a past participle follows, it is a passive (est annoncé). Headlines and summaries often use the present to describe the current situation.

Safran a annoncé le 15 octobre la livraison des premières cellules « semi-solides » développées avec Saft, destinées à l’évaluation à son centre d’essais de Niort.

The passé composé is the most common past tense, used for “did” and “has done” — actions completed in the past. It is formed with the auxiliary avoir (a / ont…) in the present + a past participle. Past participles of -er verbs end in -é (annoncer → annoncé); learn the irregular ones (faire → fait, prendre → pris, voir → vu). In the negative, ne … pas wraps the auxiliary (n’a pas annoncé). In the news it reports facts that have already happened, such as “announced” or “voted”.

Selon L’Usine Nouvelle et L’Essentiel, Saft lance dans son usine de Bordeaux une première ligne dédiée aux batteries tout-solide.

Selon means “according to”. Put a person or organisation after it as the source. It separates facts the writer checked directly from what another body or report said. Citing a source does not turn a forecast into an accomplished fact.

Safran a annoncé le 15 octobre la livraison des premières cellules « semi-solides » développées avec Saft, destinées à l’évaluation à son centre d’essais de Niort.

Le 15 octobre means “on 15 October”. Distinguish the le before a date from the le that marks a weekly habit like a weekday. Du is de + le and au is à + le, so decide the meaning from the verb and period expressions around them. Their role depends on the group: a range of dates, the date of a bulletin or another complement.

Saft, filiale de TotalEnergies, lance la production de batteries tout-solide dans son usine de Bordeaux.

Dans means “in, inside” for places, but also for a scope such as a system or period. With future time, dans deux jours means “in two days”. In the article’s example, check what it is “inside” and which scope it marks. Identify the value of dans in the passage.

L’électrolyte y est solide et non liquide.

Et joins not only words but also groups of nouns and whole clauses. Spot the two elements playing the same role to break up a long sentence. Et does not necessarily express cause and effect.

Usine NouvelleとL’Essentielによると、サフトはボルドーの工場で、全固体電池の生産ラインを動かし始めました。

As in “LCPによると”, it shows where the information comes from. What that source reported follows. It is used differently from “私にとって”, which gives one’s own opinion.

TotalEnergies傘下の電池メーカー、サフトが、ボルドーの工場で全固体電池の生産を始めました。

In “発表しました”, ました makes a verb polite past. The negative is “ませんでした”. Read the actual date together with the date and time in the text.

L’Essentielは、フランスで初めて複数の方式に対応するラインだと伝えています。

と takes the content that is reported or explained. In “改定する方針だと報じました”, “改定する方針だ” is what the report said. Separating the content from who said it and how makes long sentences easier to read.

サフトの社長セドリック・デュクロ氏は、従来の電池より、エネルギー密度が50％高いと説明しています。

The て-form links actions in a series, in order or as a reason. In “確認して、出発する” the relation is judged from the content. In “〜ている” it can show an action in progress or a continuing state.

数字は同社の発表です。

A explains noun B that follows. It is not only possession: the relation can be belonging, target, content and more. In “政府の案” and “年金の税控除”, read the relation from the context.

固体の電解質は、ポリマー系と硫化物系を扱えます。

は shows what the sentence is about; an explanation of that topic follows. は and が are not always interchangeable: contrast and the way information is placed change.