According to The Information, Apple is working on how to remove the tape that holds iPhone batteries in place. Apple must comply with EU regulations requiring all phone batteries to be user-replaceable by 2025. Currently, the battery is wrapped in foil and attached to the phone with tape that can be pulled to remove the battery.
Apple is reportedly working on a transition to metal cases where the battery pops after a mild electric shock. According to reports, this technology is called electrode glue. It sounds easier to debate than a tab. Getting to the battery will be as difficult as it is now - first you need to get through the adhesive that holds the glass part to the phone frame, then a couple of screws and a ribbon cable.
Apple is likely to test the new battery case in at least one iPhone 16 model this year, and is expected to roll out to the entire iPhone 17 lineup next year. Many other manufacturers use similar sticky pull loops, which means they'll have to find a way to make battery replacement easier next year.