[PSUBS-MAILIST] Power sources

[John Bussard via Personal_Submersibles]

Reading Busby and his discussion on the pros and cons of the battery types available at time of publication:

Is there sufficient data as folks move forward in new sub designs re: newer battery types- Specifically Li ion?  
I’m guessing that given the safety hazards there aren’t sufficient advantages to using- lead acid batteries seem to serve the majority of desired profiles.

Is this something that’s changing, or do folks expect to continue using old school batteries?  

Thanks for thoughts and history,
John