http://news.mit.edu/2014/coating-makes-batteries-safe-after-ingestion-1103

https://www.bostonglobe.com/business/2014/11/18/new-battery-coating-could-prevent-injury-swallowed/OOMSmStGXpZh7Dd845dAsN/story.html

https://www.chemistryworld.com/news/pressure-sensitive-coating-makes-swallowed-batteries-safer/7931.article

http://www.12news.com/article/mobile/news/patent-pending-on-coating-to-make-button-batteries-safer/127867403

http://thechart.blogs.cnn.com/2012/10/29/spiderwebs-may-inspire-better-medical-tape/

http://www.bbc.com/news/science-environment-29885832

http://www.fox23.com/news/patent-pending-to-create-safer-button-batteries/78870732

http://legacy.kgw.com/story/news/investigations/2015/04/09/button-batteries-in-many-toys-pose-grave-dangers-to-kids/25544119/

http://news.mit.edu/2014/coating-makes-batteries-safe-after-ingestion-1103

http://www.bbc.co.uk/programmes/p03hbxms

https://www.youtube.com/watch?v=2wDNFRtBruM