# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/waldemar-jungner
# Generated: 2026-08-13T21:04:32.796Z

schema: https://schema.org/Person
url: "https://fame.am/person/waldemar-jungner"
name: "Waldemar Jungner"
slug: "waldemar-jungner"
description: "Ernst Waldemar Jungner was a Swedish inventor and engineer. In 1898 he invented the nickel-iron electric storage battery (NiFe), the nickel-cadmium battery (NiCd), and the rechargeable alkaline silver-cadmium battery (AgCd). As an inventor, he also fabricated a fire alarm based on different dilutions of metals. He also worked on the electrolytic production of sodium carbonate and patented a rock drilling device."
tagline: "Swedish engineer and inventor (1869-1924)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Waldemar_Jungner.png?width=1200"
gender: "male"
country:
  name: "Sweden"
  isoCode: "SE"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1869-06-18"
deathDate: "1924-08-30"
livingStatus: "DECEASED"
scores:
  popularity:           43.3
  momentum:             1.022727272727272
  historical:           9.41404
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://sv.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://mg.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://oc.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Waldemar_Jungner"
    title: "Waldemar Jungner"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q2053442"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump