Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Solar Bottle / Kettle

Solar Bottle
Solar Bottle

It is hard to drink warm water in outdoor activities. The Solar Bottle is a new type of bottle, which can heat water in it by principle of convex. A layer full of small convexes is added under the cover. Sunshine is collected together by the convexes to heat the water gradually, with cover being removed and light on it. This simple structure replaces electric for heating, providing warm water for us outdoors and making our travel more comfortable.


Dalian Nationalities University

Dalian Minzu University
Dalian, China

Mengduo Si,
Dalian Nationalities University

Yingnan Zhao,
Dalian Nationalities University

Meina Jin,
Dalian Nationalities University

Chao He,
Dalian Nationalities University

Go to profile