Comment by dredmorbius

Energy capacity vs. energy release rate, or energy vs. power, tends to follow an inverse relationship, at least within similar domains.

The fuels which afford the highest rates of storage tend to release it more slowly. Chemical explosives typically have about 1/10 the energy storage capacity (by mass) of fuels, as several people have pointed out.

Similar relationships exist for other forms of energy storage. For electricity, fuel cells, chemical cells ("batteries"), flywheel / reaction storage, and capacitors tend to offer a trade-off between total storage capacity and reaction time. Capacitors can react at intra-phase rates (that is, within a single 60Hz power cycle), whilst batteries and flywheels can take longer to come online.

See for example: "Battery Parameters" <https://www.monolithicpower.com/en/learning/mpscholar/batter...>.