In conversation: Dr Richard Ahlfeld l H2D2 snow groomer dossier l Battery sealing focus l Coil windings l Electrogenic E-type conversion l Battery energy density l Thermal runaway prevention focus

Cover	1
Contents	3
Intro	4
The Grid	6
In conversation: Dr Richard Ahlfeld	16
Dossier: H2D2 snow groomer	20
Focus: Battery sealing	34
Insight: Coil windings	44
Digest: Electrogenic E-type conversion	52
Deep Insight: Battery energy density	58
Focus: Thermal runaway prevention	64
PS: Battery repair and recycling	74

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