Market evolution: Nickel-cadmium batteries (CN 850730) — 2015–2025

Introduction

This report analyses the evolution of the European Union's trade in nickel-cadmium accumulators (CN code 850730) with non-EU countries from 2015 to 2025. Over this decade, the market for this legacy battery technology, once dominant, has undergone significant transformation amidst the broader energy storage revolution. The analysis reveals a complex picture where the EU has strengthened its trade surplus by pivoting towards higher-value exports and fundamentally reshaping its import profile, marked by a dramatic decline in volume but a sharp increase in unit value. These dynamics, coupled with shifting trade partnerships, point to a strategic repositioning within a niche but stable segment of the global battery market.

1. The Great Decoupling: A Decade of Diverging Volumes and Values

A defining trend in EU trade for CN 850730 is the sharp divergence between the evolution of traded quantities and their monetary value, particularly for imports. While volumes have contracted substantially, trade values have been resilient or have grown, indicating a fundamental shift in the composition and price of traded goods.

Import volumes collapsed while prices skyrocketed

The EU's import quantity of nickel-cadmium accumulators fell by 70.7% between 2015 and 2025, dropping from 11,165 tonnes to just 3,266 tonnes. This dramatic contraction suggests a declining role for this technology in the EU's overall energy storage needs, likely displaced by lithium-ion alternatives. In stark contrast, the average import price per tonne surged by 296.9% over the same period, from €7,494 to €29,740. This immense price inflation points to a fundamental shift in the type of product being imported: the EU is now sourcing a much smaller volume of significantly more expensive, specialised, or high-performance nickel-cadmium cells.

Export volumes declined, but value and prices held firm

EU exports tell a different, more stable story. While export volume also decreased by 17.7% (from 20,692 tonnes to 17,039 tonnes), the total export value still grew by 22.6%, reaching €310 million in 2025. This resilience was powered by a 49.0% increase in the average export price per tonne, rising from €12,221 to €18,207. This indicates that EU producers successfully maintained and even enhanced the value of their output, catering to specific market niches where Ni-Cd technology retains advantages (e.g., in extreme temperatures or certain industrial applications) despite the overall volume decline.

The combined effect of these trends is a strengthening EU trade surplus, which grew by 25.9% to over €213 million in 2025. For a detailed view of these trade flows, see the General Overview on the Trade Dashboard.

2. Shifting Currents: Geographic Reconfiguration of Trade Flows

The overall trends in volume and value are underpinned by significant changes in the EU's trading partners. The period witnessed a notable reorientation of both import sources and export destinations, reflecting supply chain adjustments and evolving demand patterns.

Import sources diversified away from traditional Asian suppliers

The EU's import structure underwent a major shift away from its traditional Asian partners. Imports from China, the largest supplier in 2015, plummeted by 53.6% in value. Imports from Japan collapsed by 77.3%. In contrast, imports from the United States surged by 245.2% to become the dominant source by value in 2025. Other new suppliers like Ukraine (from virtually nothing to €5.9 million) and India (up 95.3%) also gained prominence. This diversification, coupled with the rising unit prices, may indicate a sourcing strategy focused on quality, reliability, or specific technical specifications, potentially moving away from mass-market commodity products.

Export markets remained strong, with growth in Europe and the Gulf

EU export growth was geographically broad-based. Exports to the United Kingdom, a key market, grew by 78.2%. Significant increases were also recorded for the United Arab Emirates (+56.0%), Saudi Arabia (+37.5%), Malaysia (+136.4%), and Singapore (+86.0%). This stability and growth in diverse markets demonstrate the continued global demand for high-quality EU-manufactured Ni-Cd accumulators, serving specialised industrial, security, and critical infrastructure applications worldwide. You can explore the complete partner breakdown on the Partners tab.

3. Industrial Base and Supply Chain Resilience

Despite the market contraction, the EU has maintained a specialised production base for nickel-cadmium accumulators and demonstrated a high degree of strategic autonomy, mitigating vulnerabilities associated with import dependency.

Domestic production shifted towards higher-value goods

EU production data reveals a conscious evolution. While production quantity (in items) grew modestly by 6.5%, production value surged by 143.5%, from €397 million to €968 million. This indicates that EU manufacturers have shifted their output mix towards more sophisticated, higher-margin Ni-Cd products, aligning with the observed rise in export prices. Specialisation is concentrated in a few key member states; Sweden, France, and Germany show strong revealed comparative advantages in production for this sector, as highlighted in the Specialisation analysis.

The EU solidified its position as a net exporter, reducing import reliance

The most striking indicator of resilience is the dramatic improvement in the EU's net import reliance ratio. It improved from -100.6% in 2015 to -27.3% in 2025 (a 72.9% positive change). A negative value signifies a trade surplus, and the shrinking magnitude confirms that while the EU remains a major net exporter, it has significantly reduced its relative dependence on imports. The Net Import Reliance metric underscores this trend. Furthermore, the concentration of import suppliers (HHI by value) increased, suggesting a consolidation around fewer, potentially more specialised sources, while export destinations remained diversified (low HHI), indicating a broad and stable customer base.

Conclusion

The decade from 2015 to 2025 for EU trade in nickel-cadmium accumulators (CN 850730) is a story of strategic adaptation within a declining market niche. The EU has successfully transformed its trade profile: it imports far less in volume but sources higher-value, specialised cells from a more diverse set of suppliers, led by the United States. Simultaneously, it has defended and grown its export value by focusing on premium products, capitalising on stable demand in key industrial and emerging markets.

The result is a strengthened trade surplus and a marked improvement in trade-based autonomy, as measured by reduced net import reliance. While the era of nickel-cadmium batteries as a mass-market technology is clearly over, the EU has carved out a resilient position as a producer and exporter of high-specification accumulators for critical applications, demonstrating how industrial adaptation can sustain value even in a contracting segment.