diff --git a/core/lib/Drupal/Core/Entity/EntityStorageBase.php b/core/lib/Drupal/Core/Entity/EntityStorageBase.php
index f583121..28d18d3 100644
--- a/core/lib/Drupal/Core/Entity/EntityStorageBase.php
+++ b/core/lib/Drupal/Core/Entity/EntityStorageBase.php
@@ -3,6 +3,7 @@
 namespace Drupal\Core\Entity;
 
 use Drupal\Core\Entity\Query\QueryInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
 
 /**
  * A base entity storage class.
@@ -73,18 +74,28 @@
   protected $entityClass;
 
   /**
+   * The static cache backend.
+   *
+   * @var \Drupal\Core\Cache\CacheBackendInterface
+   */
+  protected $cache_backend;
+
+  /**
    * Constructs an EntityStorageBase instance.
    *
    * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
    *   The entity type definition.
    */
-  public function __construct(EntityTypeInterface $entity_type) {
+  public function __construct(EntityTypeInterface $entity_type, CacheBackendInterface $cache_backend = NULL) {
     $this->entityTypeId = $entity_type->id();
     $this->entityType = $entity_type;
     $this->idKey = $this->entityType->getKey('id');
     $this->uuidKey = $this->entityType->getKey('uuid');
     $this->langcodeKey = $this->entityType->getKey('langcode');
     $this->entityClass = $this->entityType->getClass();
+    if (!isset($cache_backend)) {
+      $this->cacheBackend = \Drupal::service('cache.static');
+    }
   }
 
   /**
@@ -102,6 +113,13 @@ public function getEntityType() {
   }
 
   /**
+   * Build a cache ID for an entity.
+   */
+  protected function getCacheId($id) {
+    return 'entity_storage_cache:' . $this->entityTypeId . ':' . $id;
+  }
+
+  /**
    * {@inheritdoc}
    */
   public function loadUnchanged($id) {
@@ -115,7 +133,7 @@ public function loadUnchanged($id) {
   public function resetCache(array $ids = NULL) {
     if ($this->entityType->isStaticallyCacheable() && isset($ids)) {
       foreach ($ids as $id) {
-        unset($this->entities[$id]);
+        $this->cacheBackend->delete($this->getCacheId($id));
       }
     }
     else {
@@ -135,8 +153,12 @@ public function resetCache(array $ids = NULL) {
   protected function getFromStaticCache(array $ids) {
     $entities = array();
     // Load any available entities from the internal cache.
-    if ($this->entityType->isStaticallyCacheable() && !empty($this->entities)) {
-      $entities += array_intersect_key($this->entities, array_flip($ids));
+    if ($this->entityType->isStaticallyCacheable()) {
+      foreach ($ids as $id) {
+        if ($cached = $this->cacheBackend->get($this->getCacheId($id))) {
+          $entities[$id] = $cached->data;
+        }
+      }
     }
     return $entities;
   }
@@ -149,7 +171,9 @@ protected function getFromStaticCache(array $ids) {
    */
   protected function setStaticCache(array $entities) {
     if ($this->entityType->isStaticallyCacheable()) {
-      $this->entities += $entities;
+      foreach ($entities as $id => $entity) {
+        $this->cacheBackend->set($this->getCacheId($id), $entity);
+      }
     }
   }