Black Mass, Sodium vs. Lithium: Which Chemistry Will Rule the Next Battery Supercycle?
Recycling old EV batteries involves burning them to create 'black mass,' followed by water-based hydrometallurgy, a process claimed by 'tgf' to slash the carbon footprint by 40% compared to older methods.
The core fight pits Lithium against Sodium. Some argue Lithium's energy density is non-negotiable for range-heavy EVs, citing 'AnyOldName3.' Conversely, 'mnemonicmonkeys' argues Sodium wins for grid storage due to lower cost and thermal stability. An outlier, 'FederatedFreedom1981,' screams that the industry ignores 'Reduce' and 'Reuse' before even getting to 'Recycle.' Moreover, 'Le_Wokisme' demands critical vetting of all efficiency claims.
The immediate consensus favors the technical advancement of black mass recycling, even while acknowledging current recovery rates lag. The sharpest division, however, remains the chemistry debate: Lithium dominates the range conversation, while Sodium is positioned as the cheaper, reliable contender for stationary grid needs.
Key Points
Hydrometallurgy on black mass drastically cuts the carbon footprint.
Reportedly cuts carbon footprint by 40% compared to older methods (tgf).
Sodium-ion is superior for grid storage applications.
Lower cost and high longevity make it better for grid use despite lower energy density (mnemonicmonkeys).
Lithium's energy density is critical for long-range EVs.
Its high energy density keeps it chemically superior for weight-sensitive applications (AnyOldName3).
The 'Reduce' and 'Reuse' principles are being overlooked.
The industry conversation fixates too much on recycling, neglecting to use batteries for grid downcycling first (FederatedFreedom1981).
Recycling significantly saves energy versus mining virgin materials.
Recycling uses 70% less energy than mining virgin lithium (SaveTheTuaHawk).
Source Discussions (5)
This report was synthesized from the following Lemmy discussions, ranked by community score.