Solid-state battery production line cost accounting

Does battery cost accounting have a cost structure?

As battery cost accounting lacks standards, previous cost calculations widely differ in how they calculate costs and what they classify as costs. By discussing different cell cost impacts, our study supports the understanding of the cost structure of a lithium-ion battery cell and confirms the model’s applicability.

Are battery production cost models transparent and standardized?

Battery production cost models are critical for evaluating cost competitiveness but frequently lack transparency and standardization. A bottom-up approach for calculating the full cost, marginal cost, and levelized cost of various battery production methods is proposed, enriched by a browser-based modular user tool.

What are marginal costs in battery production?

In the case of battery cells, marginal costs include all material, energy, and direct labor necessary to produce another kWh of battery capacity but neglect fixed costs like investments in the production facility. It is possible that reports of very low battery production costs 5 refer to marginal costs instead of the full costs.

Why are solid-state batteries so expensive?

The high cost of solid-state batteries is attributed to both materials processing costs and low throughput manufacturing. Currently there are a range of solid electrolytes being examined and each material requires vastly different working environments and processing conditions.

What is the manufacturing process of a solid-state battery?

The manufacturing process of a solid-state battery depends on the type of solid electrolytes. Rigid or brittle solid electrolytes are challenging to employ in cylindrical or prismatic cells. More focus should be given to the development of compliant solid electrolytes.

How do battery production cost models affect cost competitiveness?

Battery production cost models are critical for evaluating the cost competitiveness of different cell geometries, chemistries, and production processes. To address this need, we present a detailed bottom-up approach for calculating the full cost, marginal cost, and levelized cost of various battery production methods.