Founded by Jagdeep Singh, Tim Holme, and Stanford Professor Fritz Prinz as Infinite Power Storage in Stanford GSB's StartX accelerator: initial focus on solid-state lithium-metal anode-free architecture using ceramic separator. Tim Holme's PhD at Prinz Lab on atomic-layer-deposition solid electrolytes is the IP foundation; renamed QuantumScape 2012.

Volkswagen invested $100M and formed automotive-industrialisation JV (later Powerco) to take QuantumScape's anode-free, lithium-metal solid-state cells from lab to scale. Initial QS cell test data showed >0.5 Ah capacity with sub-2 mAh/cm2 areal capacity. VW commitment of additional $200M tied to QS milestones: anchor customer for the next 7+ years.

Went public on NYSE via Kensington Capital SPAC merger at ~$3.3B implied valuation: raised ~$1B gross. Stock spikes to $130 (Dec 2020), >40x SPAC trust value, putting QS on $50B+ market cap briefly. The defining SPAC battery boom event; a year later valuation collapses 90% on commercialization-timeline reset.

First public solid-state cell test data: single-layer cells held >80% capacity over 800 cycles at 1C charge/discharge, with >300 Wh/kg projected at the cell level. Demonstrated 15-min 0-80% fast charge with anode-free architecture. Set the technical reference benchmark for solid-state automotive viability.

Shipped first 24-layer prototype solid-state cells to automotive customers (VW Powerco, undisclosed others) for testing: capacity scale from 10 Ah single-layer cells. Major step from lab demonstration to vehicle-relevant cell formats.

Delivered Alpha-2 prototype cells to Volkswagen PowerCo for B-sample evaluation: multi-layer cells with improved cycle life (~1,000 cycles to 80%). PowerCo's industrial-engineering team transitions cells through B-sample qualification at Salzgitter; A-sample → B-sample progression critical for 2027 pilot vehicle integration.

Signed expanded license with Volkswagen PowerCo: non-exclusive license for 80 GWh/yr planned solid-state production at Salzgitter. License-and-royalty structure: $130M upfront + per-Wh royalty payments. Signals VW commitment to solid-state at industrial scale despite Powerco organisational reset.

Cobra separator-fabrication process baselined in San Jose, replacing legacy Raptor process: unblocks B-sample manufacturing scale-up. Throughput improvement >10x with material yield gains; critical step toward Powerco Salzgitter pilot-line tech transfer 2026.

Powerco Salzgitter pilot solid-state line tech-transfer initiated: Cobra-baseline separators shipped to Germany; 10 MWh QS-licensed pilot capacity targeted 2027. First QuantumScape industrial-scale ASSB production outside San Jose.