Methodology

How We Work

Battery Digest curates the most important battery technology news from professional sources daily, distilling them into 3 in-depth stories and quick news items so you can stay informed in 5 minutes.

Active Sources

We currently monitor the following sources:

English - Electrek — EV and clean energy news (RSS) - CnEVPost — China EV and battery news in English - InsideEVs — Electric vehicle news and reviews (RSS) - CleanTechnica — Clean energy and EV coverage (RSS)

Chinese - 36Kr — Technology and business news (RSS) - D1EV / 第一电动 — China's largest EV news portal - OFweek Lithium / OFweek锂电 — Battery industry analysis and news

Scoring Criteria

Every incoming article is automatically scored across several dimensions:

Cross-source corroboration: When multiple independent sources cover the same story, it gets a score boost. This is the strongest importance signal — if only one source mentions it, it might only be important to that source
Community engagement: Upvotes and comment counts. Community consensus is another form of validation
Source authority: First-party company blogs (e.g., CATL announcing its own product) and top-tier tech outlets carry more weight than aggregator newsletters
Recency: Items from the last 24 hours get a boost, preventing stale stories from taking up space

Items scoring above a threshold enter the "highlight" pool; the rest go into the "notable" pool. All items are then considered in the editorial stage.

Coverage Areas

Power batteries (lithium-ion, LFP, NMC, etc.)
Energy storage (grid-scale, commercial & industrial, residential)
Solid-state batteries (sulfide, oxide, polymer)
Sodium-ion batteries
Emerging technologies (lithium-sulfur, lithium-air, flow batteries, etc.)
Battery materials and recycling
Industry policy and regulations

Limitations

We do not provide investment advice
Coverage focuses on technology and industry, not stock or financial analysis
Some sources may have timing delays
AI-assisted content is reviewed by humans but may still contain biases