Rendering a large collection using BackboneJS and LoDash
You code looks good, I only can give a few suggestions:


I find it more convenient to use ...bind(this) instead of var self = this; - in this case the extra variable is not necessary the code looks better.
Maybe it is better to use an index within the array - in this way the array will not be copied several times. Of course, the JS is highly optimized internally, but it is a good to help it a little.
Rendering 10.000 items is still very CPU consuming process (especially on mobile devices) so maybe use the similar approach that you have used with images and build the next chunk only when the user scrolled down to the end?