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GM Signs Battery Deal for Gen 3

2156 Views 13 Replies 3 Participants Last post by  FI Spyder
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"He emphasized that they are betting the future on battery-electric vehicles and not plug-in hybrids. "That's the bet we have." "

We knew this already, but don't expect any works of art like the Volt in the near future. :-( Super interesting if they can actually get battery prices to beat out the competition, so many of these press releases seem to be jockeying for position and what ends up actually making production is... not as advertised? Interesting to hear other's thoughts for sure.
 

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I believe battery prices for a given kW capacity have approximately halved over the past decade. And yet a full battery replacement for Gen1 Volts is almost $10K for the battery. Maybe that's because legacy batteries like the Volt's has haven't gotten cheaper to replace?
 

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This would be a game changer for BEV, but we've heard and seen a lot of stories over the years about "super" batteries that will replace LiOn. So far none have come to market.
 

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Li ion can only do so much. A lot of companies are working on solid state batteries and press releases are always forward looking. There have been a number press releases that came to nothing because that last bit is elusive. Most can only get 3 or 4 of the 5 properties necessary for EV use. Only Quantumscape have got there so far and are working on mass production. That may mean designing and building the machines to make them. You are looking at two+ years out. This stuff doesn't get done in a week.
 

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General Motors has signed a deal with a Massachusetts Institute of Technology spinout for joint development of next-generation electric vehicle batteries that are expected to cut the cost of the technology by 60% using lithium metal instead of lithium-ion.

The tie-up with Singapore-based SolidEnergy Systems, which was founded by MIT grad Qichao Hu, is focused on new battery chemistry to reduce the size of the batteries while increasing an EV’s range. That then helps lower the cost of the vehicles.

GM's Ultium second generation batteries will start shipping with the Hummer EV and Cadillac Lyriq. These SolidEnergy Systems "3rd gen" batteries would be a replacement if they prove out. Initial prototype batteries have already completed 150,000 simulated test miles at research and development labs at GM’s Global Technical Center in Warren, Michigan, according to GM.

 
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The battery is not solid state but Li ion. The name SolidEnergy and solid state properties is misleading and many people will take it as solid state technology. It is a "once in a generation" advance in Li ion technology. Almost a million miles and solid state properties from Li ion is quite the breakthrough. Seems this chemistry was written off too soon.
 

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if gm has that tech. it would make sense them building their own batt plant
Actually, SolidEnergy has the tech. GM partnered with them (provided the money). Yet to be determined how that shakes out. Despite the name the article that just came out expressly said it was not solid state battery but Li ion battery, the company name being confusing.
 

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The real question is can this company mass produce these batteries in time for GM to be ready with their BEVs.
 
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Another article said these use lithium metal not lithium ion, and GM's been testing prototypes to 150,000 or so miles in Michigan.
 

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Another article said these use lithium metal not lithium ion, and GM's been testing prototypes to 150,000 or so miles in Michigan.
They do say Lithium metal which is also misleading. Lithium is a metal, used in the cathode (as well as other metals) so that is technically correct but the electrolyte is Lithium ion. They do say (in some reports) that is is Lithium ion and not the solid state (no electrolyte that companies are working on).
 
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