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TOPIC GUIDE / Understand the evidence

Materials & sustainability

Learn how material and environmental information fits into a wider product information process.

Updated October 28, 2026 · Independent introductory guidance
BATTERY / KNOWLEDGE MAPMaterials & sustainability
Physical product → Digital record → Lifecycle evidence12 / 22

Keep claims connected to evidence

Environmental and materials information needs clear definitions, boundaries, and supporting records. Avoid treating an attractive dashboard as proof of the underlying data.

Useful starting points

  1. Record methods, units, and source versions.
  2. Distinguish measured information from estimates.
  3. Review applicable requirements before making public claims.
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BUILD ON THE BASICS

Guides in this topic

sustainability

Carbon footprint data and methods: primary data, secondary data and the JRC rules

Carbon footprint calculation needs primary data for the foreground processes and consistent secondary data for the background, under the JRC method rules.

Oct 28, 2026 · 8 min read
sustainability

Carbon footprint declaration explained: what Article 7 requires for a battery model

A carbon footprint declaration states the life cycle greenhouse gas emissions of a battery model per manufacturing plant, calculated by a prescribed method.

Oct 28, 2026 · 8 min read
sustainability

Carbon data gaps: missing primary data, proxies and the limits of a footprint figure

Carbon data gaps are stated with the proxy or default used, the reason, and the effect on the figure, never hidden behind a precise looking number.

Oct 28, 2026 · 8 min read
sustainability

Comparing carbon figures across batteries: a matched comparison method

A valid carbon comparison matches functional unit, boundary, method, plant type and service life basis, and states every difference that remains.

Oct 28, 2026 · 8 min read
sustainability

Durability and repairability information: what a passport shows about life, repair and spare parts

Durability and repairability information in a passport points to performance values, dismantling detail and spare part sources, without promising a life or a repair outcome.

Oct 28, 2026 · 7 min read
sustainability

Material origin information: what a passport can and cannot say about where materials came from

Material origin information in a passport is limited to what due diligence and chain of custody evidence supports, at a stated level of granularity.

Oct 28, 2026 · 8 min read
sustainability

Recycled content evidence: chain of custody, mass balance and verification for recovered materials

Recycled content evidence links a declared share to chain of custody records, mass balance calculation and verification, without treating a certificate alone as proof.

Oct 28, 2026 · 7 min read
sustainability

Recycled content declaration: documenting cobalt, lead, lithium and nickel recovered from waste

A recycled content declaration documents the share of each listed material recovered from waste and present in active materials, by a prescribed calculation method.

Oct 28, 2026 · 7 min read
sustainability

Recycled shares for cobalt, lithium, nickel and lead: reading the four percentages together

The four recycled content percentages are separate claims for separate materials, with different minimums, different supply chains and different reading risks.

Oct 28, 2026 · 8 min read
sustainability

Substances of concern: restricted substances, labelling and the passport record

Substances of concern in batteries are controlled by Article 6 and Annex I restrictions, by labelling, and by passport information, each with its own threshold and scope.

Oct 28, 2026 · 7 min read
sustainability

Sustainability claims and greenwashing risk: substantiation, scope and the consumer rules

Sustainability claims need scientific substantiation, a stated scope, and independent verification where the rules require it, or they risk being treated as misleading.

Oct 28, 2026 · 9 min read
sustainability

What carbon figures must not claim: comparisons, neutrality and thresholds without scope and method

A carbon figure must never be presented as a comparison, a neutrality claim, or a threshold pass without matching scope, method and functional unit.

Oct 28, 2026 · 8 min read
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